By-Ulka Kelkar and Suruchi Bhadwal
It
is now increasingly realised that even with the currently agreed regime of
emissions control, concentrations of greenhouse gases (GHG) are likely to rise
over the next few decades and over the millennia. Climate change is likely to
threaten all life forms on earth with the extent of vulnerability varying
across regions and populations within regions. The impacts however are likely
to fall disproportionately upon developing countries, in particular, the poor
living within them. Reduced capacities to be able to effectively respond to
increased climatic variability and change in the climate exacerbates
vulnerabilities.
Changes
in temperature and precipitation patterns and numerous other factors will
impact both natural and human systems. Climate sensitive sectors like
agriculture, forestry, water resources and coastal regions, and, human systems
including human health, human settlements, industry and energy sectors will be
drastically affected (IPCC 2001).
1. Development
priorities in South Asia
Poverty alleviation is high on
the agenda as a top development priority in most countries in South Asia.
Population growth, paucity of resources, and lack of economic opportunities
create pressures on ecologically fragile areas and natural resources. In India,
the 10th Plan of the government has set a high growth target of 8% to induce
rapid reduction in income poverty and attain ambitious human development goals.
Though there have been considerable improvements in certain sectors regarding
those on education and health, India still lags behind in addressing
gender-sensitive indicators such as maternal mortality or the gender gap in
secondary education, and the high incidence of human immunodeficiency
virus/acquired syndrome (HIV/AIDS) and other infectious diseases. In
Bangladesh, the percentage of people below the poverty line has decreased from
70.6 percent to 46.5 since 1973-74. The government plans to halve the
proportion of people below the poverty line by 2010. Main areas of focus
include promoting pro-poor growth, social development and good governance.
Bhutan has plans to achieve
universal primary education by the year 2007. The primary school gross
enrolment rate increased from 67 % in 1990 to 72 % in 2000. Significant
improvements have also been achieved in terms of decreased infant and maternal
mortality rates, lower child malnutrition and better access to clean drinking
water. Health care coverage is as high as 90 % and there are plans by the
government to further improve the delivery of health services.
Table 1 presents some indicators of poverty and
vulnerability listed for the South Asian countries. While the number of people
living in extreme poverty is projected to decline, a third of those still in
extreme poverty in the year 2015 are projected to be living in South Asia
(World Bank estimates). South Asia also has the highest prevalence of
malnutrition among children under five years (Figure 1) and the lowest share of
rural population with access to improved sanitation (Figure 2).
Table 1. Indicators
of poverty and vulnerability for South Asian countries
|
Daily per capita calorie supply (Kcal) in 1999
|
% population without sustainable access to improved water
source in 2000
|
Malaria cases (per
100,000 persons) in
2000
|
%
population living below US$1 a day (most recent year during 19902002)
|
Bangladesh
|
2201
|
3
|
40
|
36
|
Bhutan
|
..
|
38
|
285
|
..
|
India
|
2417
|
16
|
7
|
34.7
|
Nepal
|
2264
|
12
|
33
|
37.7
|
Pakistan
|
2462
|
10
|
58
|
13.4
|
Sri Lanka
|
2411
|
2
|
1110
|
6.6
|
Data
source
|
WRI
|
UNICEF,
UNDP HDR
|
UNDESA, WHO, UNDP HDR
|
WB, UNDP HDR
|
Figure 1. Prevalence
of malnutrition Figure 2. Percentage of population
(percentage of children under 5 years) with access to
improved sanitation in 2002
The Human Development Index
(HDI) ranking for countries in South Asia indicates scope for social and
economic development in the region (Table 2).
Table 2. HDI
ranks of South Asian countries
Country
|
HDI rank
|
India
|
127
|
Sri Lanka
|
93
|
Bangladesh
|
139
|
Nepal
|
136
|
Bhutan
|
134
|
Pakistan
|
135
|
Maldives
|
96
|
1.1 Sensitivity to climate change in the context of development challenges
The South Asian region is also
highly sensitive to the consequences of climate change. It is known to be the
most disaster prone region in the world supporting a huge population of more
than 1.3 billion (UNEP 2003). This is
critical as climate predictions for the future highlight increase in frequency
and intensity of extreme weather events like droughts and floods (IPCC 2001);
indicative of the huge population that is likely to be exposed and affected in
the region. Analysis of rainfall data for India highlights the increase in the
frequency of severe rainstorms over the last fifty years. The number of storms
with more than 100 mm rainfall in a day is reported to have increased by 10
percent per decade (UNEP 2007). Tendencies of increase in intense rainfall with
the potential for heavy rainfall events spread over few days are likely to
impact water recharge rates and soil moisture conditions. Despite this, a
decade of drought is also marked with certain regions in Asia getting affected.
These conditions exacerbate and skew water availability across regions
worsening conditions in regions that are already water stressed. Rapid
depletion of water resource is already a cause for concern in many countries
within the region. Figure 3 highlights that in South Asia alone, 2.5 billion
people will be affected with water stress and scarcity by the year 2050 (HDR,
2006). While estimating these numbers, however, changes in climatic conditions
have not been considered.
The Himalayan range contains
high altitude glaciers that supply water to many rivers in Asia. These rivers
provide water to more than half of the world’s population. Many people in Asia
are dependent on glacial melt water during dry season. Accelerated glacial melt
questions the very perennial nature of many of the Himalayan flowing
rivers. This is likely to have huge
implications on those dependent on the resource affecting water availability
for agricultural purposes. In Nepal and
Bhutan, melting glaciers are filling glacial lakes beyond their capacities
contributing to Galcial Lake Outburst Floods (GLOFs) (UNEP 2007).
Agriculture is the mainstay of
several economies in South Asia. It is also the largest source of employment.
The sector continues to be the single largest contributor to the GDP in the
region. As three-fifth of the cropped area is rainfed, the economy of South
Asia hinges critically on the annual success of the monsoons, indicative of the
well-being of millions. In the event of a failure, the worst affected are the
landless and the poor whose sole source of income is from agriculture and its
allied activities. There however has been striking differences in growth
performance across countries.
Countries
|
GDP growth
|
|
Agriculture
|
|
|
|
1971-
1980
|
1981-
1990
|
1990-
2000
|
1971-1980
|
19811990
|
1990-
2000
|
|
Bangladesh
|
1.9
|
4.6
|
4.8
|
0.5
|
2.7
|
2.9
|
Bhutan
|
|
7.8
|
6.1
|
|
4.9
|
3.2
|
India
|
3.4
|
5.5
|
6
|
2.1
|
3.7
|
3
|
Nepal
|
2.5
|
4.3
|
4.9
|
0.8
|
3.8
|
2.5
|
Pakistan
|
4.9
|
6.6
|
3.7
|
2.6
|
4.9
|
4.4
|
Sri Lanka
|
4.3
|
4.3
|
5.3
|
2.6
|
2.7
|
1.9
|
Source: Haq (2003)
With 19 % contribution to the
country’s GDP, agriculture in India employs two-thirds of the national
workforce in the country. In addition, it caters to the needs of other
agroprocessing industries that form the backbone of the Indian economy. Serving as a major livelihood resource in the
country, the sector plays a critical role in defining poverty levels across
different states in the country (TERI 2007). GDP contributions in other South
Asian countries are also found to be similar to that in India barring Nepal
where the dependence is far higher. The sector is also the largest consumer of
water in the region further sensitive to the consequences of a changing
climate. In India alone, more than 85 % of the water is used for irrigation
purposes.
High growth rates in the
agriculture sector represent Pakistan as one of the high growth rate countries
in the region. Correspondingly, Pakistan has observed a decline in rural
poverty from 49 percent to 32 percent over the time period 1969 to 1998 (Haq
2003).
Bhutan and Nepal have fragile
mountainous ecosystems; Bangladesh and Sri Lanka have low-lying coastal areas,
while India and Pakistan depend on cultivation in arid and semiarid lands.
These countries already experience frequent natural disasters (Figure 4). The
Third Assessment Report of the
Intergovernmental Panel on Climate Change (IPCC 2001) pointed out that climate
change and its variability will exacerbate existing vulnerabilities to droughts
and floods in Asia. Tropical cyclones can become more intense. Combined with
sea-level rise, this will result in enhanced risk of loss of life and
properties in coastal low-lying areas of cyclone-prone countries. Increased
precipitation intensity, particularly during the summer monsoon, can contribute
to increase in flood events. At the same time, drier summer conditions in arid
and semi-arid areas can lead to more severe droughts.
Livelihoods and economic
activities in South Asia are closely tied to the natural resource base, and are
hence, highly sensitive to changes in the climate. Agriculture and aquaculture
will be threatened by a combination of thermal and water stresses, sea level
rise, increased flooding, and strong winds associated with intense tropical
cyclones. Freshwater availability and biodiversity, which are already under
pressure due to population growth and land use change, will be further impacted
by climate change. Finally, warmer and wetter conditions will increase the
potential for a higher incidence of heat-related and infectious diseases.
By adversely impacting sectors
like agriculture, water resources, and health, climate change presents a
formidable challenge for efforts to reduce poverty and achieve the Millennium
Development Goals in South Asia. The fundamental dilemma for the countries of
South Asia is that prolonged or extreme climate stress can drive processes of
impoverishment by affecting the livelihoods of poor people, while poverty
increases vulnerability to climate change by further limiting options.
Box
1. Poverty and vulnerability to climate change
Through extreme or prolonged stress,
climate variability and change can affect the quality, quantity, and
reliability of many of the services natural resources provide. This in turn has
a critical impact on food intake, health, and livelihoods of poor people.
Climate variability can fundamentally drive processes of impoverishment through
direct and indirect routes (IRI 2005):
1.
Direct: Severe or repeated climate shocks can push
vulnerable households into a persistent poverty trap when their individual
coping responses involve divestment of productive assets such as land or
livestock
2.
Indirect: Climate uncertainty causes inability to
anticipate when climatic extremes will occur, which acts as a disincentive to
investment, innovation, and development interventions.
At the same time, poverty increases
vulnerability to climate change by reducing options. The poor are typically
forced to live in marginal lands (e.g. flood-prone, degraded soil, etc) and in
living conditions which “are predisposing conditions to ill health”. This
includes low quality housing (e.g. lack of screen doors), bad sanitation, and unprotected
sources of drinking water, which juxtaposed with undernourishment and deficient
health care, makes them highly prone to vector- and water-borne diseases. The
poor are generally dependent on subsistence activities involving extraction of
natural resources, which are vulnerable to climate change. Most importantly,
there is little accumulation of assets to draw on in times of stress.
2. Impacts of
climate change on human well-being and development
With 2007 likely to be the warmest year on record (UK Met
Office projections), it is important to take stock of the likely impacts of
climate change on human well-being, livelihoods, and development in South
Asia.
2.1 Adverse impact on food security and farm livelihoods
Temperature rise will negatively
impact rice and wheat yields in tropical parts of South Asia where these crops
are already being grown close to their temperature tolerance threshold. While
direct impacts are associated with rise in temperatures, indirect impacts due
to water availability and changing soil moisture status and pest and disease
incidence are likely to be felt. The most significant impacts are likely to be
borne by small-holder rainfed farmers who constitute the majority of farmers in
this region and possess low financial and technical capacity to adapt to
climate variability and change. Landholdings are already very small due to
large family sizes in this region. In the hills, in particular, holdings are
also fragmented which prevent farmers from reaping economies of scale.
Wheat yields in central India may drop by 2% in a pessimistic
climate change scenario (GoI 2004). Kumar and Parikh (2001) show that even
after accounting for farm level adaptation, a 2 °C rise in mean temperature and
a 7 % increase in mean precipitation will reduce net revenues by 8.4% in India.
The major foodgrain producing regions of
Haryana, Punjab and western Uttar Pradesh experience the most negative effects,
along with the coastal districts of Tamil Nadu. Punjab and
Haryana are significant from the
perspective of food security in India (Figure 5), but they also face severe
depletion of groundwater resources due to intensive cultivation techniques
introduced in the Green Revolution in the 1970s coupled with populist free
power policies.
Pakistan
In the hot climate of Pakistan,
cereal crops are already at the margin of stress. An increase in average temperature
would translate into much higher ambient temperatures in the wheat planting and
growing stages. Higher temperatures are likely to result in decline in yields,
mainly due to the shortening of the crop life cycle especially the grain
filling period. Wheat yields are
predicted to decline by 6-9 % in sub-humid, semiarid, and arid areas with 1°C
increase in temperature (Sultana and Ali 2006), while even a 0.3°C
decadal rise could have a severe impact on important cash crops like cotton,
mango, and sugarcane (MoE 2003).
Sri
Lanka
Half a degree temperature rise
is predicted to reduce rice output by 6 %, and increased dryness will adversely
affect yields of key products like tea, rubber, and coconut (MENR 2000). In warm, semi-arid regions, deficiency of
moisture would be a major constraint. Most cropping activities for e.g.,
coarse grain, legumes, vegetables, and potato are likely to be affected
adversely due to the impacts of climate change. The highest negative impact is
estimated for coarse grains and coconut production. An increase in the
frequency of droughts and extreme rainfall events could result in a decline in tea yield, which would be the
greatest in regions below 600 metres (Wijeratne
1996). With the tea industry in
Sri Lanka being a major source of foreign exchange and a significant source of
income for labourers the impacts are likely to be grave. More recently, under
an ongoing AIACC project, Peiris et al (2004) confirmed that changes in monsoon
rainfall pattern and increase in maximum air temperature are two key factors on
the variability of coconut production in the principal coconut growing regions.
The projected coconut production after 2040 in all climate scenarios, when
other external factors are non-limiting, will not be sufficient to cater the
local consumption for the increased population. Among the different
stakeholders in coconut industry, the coconut oil (CNO) industry would be most
affected.
Bangladesh
Karim et al (1996) projects a
net negative effect on the yields of rice, the staple food of the population,
in Bangladesh. On an average during the period 1962-1988, Bangladesh lost about
0.5 million tonnes of rice annually as a
result of floods that accounts for nearly 30% of the country's average
annual food grain imports (Paul and Rashid 1993).
Bhutan
Upland crop production, practised close to the margins of viable
production, can be highly sensitive to variations in climate. Climate change
will cause the cultivating zone to shift upwards to unsuitable steep slopes.
It is also expected to increase the severity and frequency of monsoonal storms
and flooding in the Himalayas, which could aggravate the occurrence of
landslides. In addition to the danger to life and property, some of the
generated sediments may be deposited in the agricultural lands or in irrigation
canals and streams, which will contribute to deterioration in crop production
and in the quality of agricultural lands (NEC 2000).
2.2 Increased risks to human health
Changes in climate may alter the distribution of important
vector species (for example, mosquitoes) and may increase the spread of disease
to new areas that lack a strong public health infrastructure.
India
Malaria is endemic in all parts
of India, except at elevations above 1,800 metres and in some coastal areas.
The principal malaria-prone areas are Orissa, Madhya Pradesh, Chhattisgarh, and
the north-eastern parts of the country. According to the World Bank, in 1998
about 577,000 Disability- Adjusted Life Years (DALYs) were lost due to malaria.
Presently, the transmission window (based on minimum required conditions for
ensuing malaria transmission) is open for 12 months in eight states (Andhra
Pradesh, Chhattisgarh, Karnataka, Kerala, Maharashtra, Orissa, Tamil Nadu and
West Bengal), nine to 11 months in the north-eastern states (Gujarat, Haryana,
Madhya Pradesh, Punjab, Rajasthan, Uttar Pradesh and Uttaranchal). The northern
states of Himachal Pradesh and Jammu and Kashmir have transmission windows open
for five to seven months, respectively. Considering a 3.8°C increase in
temperature and a seven per cent increase in relative humidity by the 2050s
(with reference to the present), nine states of India may have transmission
windows open for all 12 months. The
transmission windows in the states of Jammu and Kashmir and Rajasthan may
increase by three to five months as compared to the base year. States like
Orissa and some southern states, where the mean temperature is more than 32°C
in four to five months, a further increase in temperature is likely to cut the
transmission window by two to three months (GoI 2004). Other health
vulnerabilities are summarized in Table 4.
Maldives
Although malaria has been
eradicated from the Maldives, climate change is likely to induce a threat of
malaria outbreaks. Poor sanitation in the islands of Maldives along with
conducive environment for the spread of diseases might lead to the outbreak of
water related and waterborne diseases such as diarrhoea (Ministry of
Environment and Construction 2005).
Nepal
Greater risk of kalaazar and Japanese encephalitis is
highlighted in the Nepalese National Communication (DHM 2004). The subtropical and warm temperate regions are
predicted to be particularly vulnerable to malaria and kalaazar. There will
be higher risk of water-borne diseases due to poor sanitation and higher
rainfall. Increased flooding could damage municipal treatment facilities or
land-fills, increasing the risk of contamination.
Sri
Lanka
Expansion and shift in malarial
transmission zones is expected. Moreover, the seasonal pattern of malaria
transmission is likely to undergo a change, from the high transmission season
which now occurs from November to February being curtailed, and the minor
mid-year peak being enhanced with high rates of transmission occurring in
September. Areas bordering the
non-endemic wet zone of the country are likely to become highly vulnerable to
malaria (MENR 2000).
Pakistan
A recent study for Pakistan also
points out that long warm spells are likely to become more frequent under a
doubled CO2 climate change scenario (Islam and Rehman 2006).
The
mountainous regions of South Asia are particularly vulnerable to temperature
rise and associated climate changes. High altitude populations that fall
outside areas of stable endemic malaria transmission may be particularly
vulnerable to increases in malaria, due to climate warming. Table 5
highlights health determinants and outcomes for these regions.
Table 5. Health determinants and health outcomes that currently
exist in mountain regions (synthesis of country reports)
|
Bangladesh
|
Bhutan
|
Nepal
|
India
|
Heat waves
|
+
|
-
|
+
|
+
|
Glacial
lake floods
|
-
|
M
|
M
|
M
|
Flash
floods
|
+
|
M
|
M
|
M
|
Riverine
floods
|
+
|
-
|
+
|
+
|
Malaria
|
+
|
+
|
M
|
+
|
Japanese
encephalitis
|
+
|
-
|
+
|
+
|
Kala azar
|
-
|
-
|
+
|
+
|
Dengue
|
+
|
+
|
-
|
+
|
Water-borne
diseases
|
+
|
M
|
M
|
M
|
Water
scarcity, quality
|
+
|
+
|
M
|
M
|
Drought-related
food insecurity
|
+
|
-
|
-
|
M
|
Note: “M” indicates that the health determinant or
outcome is present in the mountainous region of the country (and also in the
non-mountainous areas)
“+” indicates that the health
determinant or outcome is present elsewhere in the country “-“ indicates that
the health determinant or outcome is not present in the country.
Source: WHO (2005)
These impacts will exacerbate existing health problems (Figure
6) and pose a great challenge in view of the poor access to health services in
South Asia, particularly for communities living in rural areas or remote areas
such as mountains and islands.
2.3 Growing pressures on coastal cities
Low-lying coastal cities will be
at the forefront of impacts; vulnerable to the risks of sea level rise and
storms. These cities include Karachi, Mumbai, and Dhaka—all of which have also
witnessed significant environmental stresses in recent years. As climate change
will adversely impact farm livelihoods, migration to urban areas in search of
economic opportunities is likely to increase, putting greater pressure on
scarce housing, water, sanitation facilities, and energy services. These
concerns are exemplified by the July 2005 floods in Mumbai, India’s commercial
capital, caused by a record level of precipitation within 24 hours, which
brought life to a standstill and resulted in economic losses of Rs 90 billion
(Box 2). Similarly, Pakistan’s port city
Karachi is highly vulnerable to increased monsoonal and tidal activity,
resulting in periodic flooding.
The National Communication of
Pakistan (MoE 2003) warns against significant flooding impacts in the coastal
zone, particularly in the low-lying deltaic regions. These areas would become
more vulnerable to flooding because high sea levels provide a higher base for
storm surges to build upon. Higher seawater levels would also increase the risk
of flooding due to rainstorms, by reducing coastal drainage. A rise in sea level
would raise the water table, further reducing drainage in coastal areas. All
these effects could have possibly devastating socioeconomic implications,
particularly for infrastructure in lowlying deltaic areas.
The Indian National
Communication (GoI 2004) assessed the extent of vulnerability of coastal
districts based on physical exposure to sea-level rise, social aspects related
to population affected and extent of economic activities in coastal areas and
the capacity to cope in these regions. Using global models, sea level rise of
10-25 cm per 100 years has been predicted under a greenhouse scenario. To
separate the influences of global climatic changes the available mean sea level
historical data has been evaluated for 10 locations for a period ranging from
1920 to 1999. The rise in sea levels is
reported to be highest in the Gulf of Kutch and the coast of West Bengal. While
West Bengal ranks first in terms of frequency of occurrence of cyclones,
Chennai ranks first if normalised with respect to area and Karaikal in
Pondicherry ranks first with respect to coastline length. Noronha et al
(2003) provided a coastal district level ranking of vulnerability to one metre
sea level rise by constructing a weighted index as an average of:
Share of land area affected in the total area of
district
Share of population affected in the total
population of the district
index of relative infrastructure development
considering
the withdrawal of flood cover in the light of heavy losses in Mumbai. This,
however, was denied by the IRDA (Insurance Regulatory and Development
Authority). Insurers announced steps to ensure speedy settlement of claims by
setting up special cells besides waiving some procedural requirements. To
enable rejuvenation of businesses, the IRDA said that insurance companies have
allowed ‘on account’ payments where the survey was likely to take time. The
IRDA also raised the limit of losses required to be surveyed by a licensed
surveyor and loss assessor for settlement of claims, from 20 000 to 50 000
rupees.
Sources: Halarnkar and Chatterjee (2005), The Hindu (2005),
Deccan Herald (2005),
Financial Express (2005), IRDA (2005), Ishrati (2005)
2.4 Declining water resources
According to the IPCC, the greatest vulnerability to climate
change is in unsustainably managed ecosystems that are currently water
stressed. By 2050, the annual runoff in
the Brahmaputra is projected to decline by 14%, and that in the Indus by 27%
(IPCC
2001), which will have tremendous
downstream consequences. Increased warming might result in increased flows
initially with reduced flows later as the glacier disappears. Available records
suggest that Gangotri glacier is retreating by about 30 m yr-1. A warming is
likely to increase melting far more rapidly than accumulation. Glacial melt is
expected to increase under changed climate conditions, which would lead to
increased summer flows in glacier fed river systems for a few decades, followed
by a reduction in flow as the glaciers disappear. India, Bhutan and Nepal are
concerned about the reduction in flow of snow-fed rivers (respective NCs),
while Maldives is threatened by saltwater intrusion into freshwater (NC of
Maldives). In Pakistan, a 6% decrease in rainfall will increase the net
irrigation requirement for wheat by 29% (NC of Pakistan). Increased glacial
melt due to warming is also predicted to affect river flows.
Bangladesh
As floods in Bangladesh are
caused by intense monsoon precipitation over the basin areas of the Ganges,
Brahmaputra and Meghna (GBM) rivers, future changes in precipitation regime
have four distinct implications:
1.
the timing of occurrence of floods may change, with a
possible change in the seasonality of the hydrological cycle
2.
increased precipitation in the GBM basins may increase
the magnitude, depth, and spatial extent of floods
3.
timing of peaking in the major rivers may also change
that may change the likelihood of synchronization of flood peaks of major
rivers
4.
increased magnitude, depth, extent and duration of
floods will bring a dramatic change in land-use patterns in Bangladesh.
A study carried out under the
BDCLIM (Bangladesh Climate) project sought to examine possible changes in
flooding in Bangladesh under a given climate scenario. IPCC (2001) indicates
that the average annual runoff in the Brahmaputra basin would decline by 14% by
the year 2050 as a result of climate change. Nishat (2002) made an attempt to
examine the implications of climate change for the National Water Management
Plan of Bangladesh. Impacts include excessive rise in evaporation rates,
reduction in dry season trans-boundary flows resulting in an increase in
irrigation water requirements, sea level rise of 0.5m to exacerbate drainage
congestion, and other potential impacts such as more frequent flash floods,
higher frequency of tropical cyclones, rise in storm surge depths, and slower
accretion of new coastal lands.
Bhutan
The availability of water in
Bhutan is heavily dependent on heavy rainfall, glaciers or snow, land use
practices, and user demand. A reduction in the average flow of snow-fed rivers,
combined with an increase in peak flows and sediment yield, would have major
impacts on hydropower generation, urban water supply, and agriculture. An
increase in rainfall intensity may increase run-off, enhance soil erosion, and
accelerate sedimentation in the existing water supplies or reservoirs.
Nepal
A preliminary analysis of river discharge shows decreasing
trends for Karnali and Sapta Koshi but increasing trends for Narayani (DHM
2004).
Box 3. Draining potentially dangerous
glacial lakes in Nepal
Of 2,323 glacial lakes in
Nepal, 20 have been found to be potentially dangerous with respect to glacial
lake outburst floods The most significant such event occurred in 1985, when a
glacial lake outburst flood caused a 10-15 metre high surge of water and debris
to flood down the Bhote Koshi and Dudh Koshi rivers for 90 km, destroying the
Namche Small Hydro Project. As a response to Nepal’s vulnerability to climate
change, numerous adaptation options for various sectors have been proposed and
many already implemented. One major project that focuses on glacial lake
outburst flood mitigation has been
undertaken in the Tsho Rolpa glacial lake area. With Dutch support, the
Nepalese government undertook a project to drain and reduce the depth of the
Tsho Rolpa glacial lake by 3 metres. This reduced the risk of a glacial lake
outburst flood by 20 percent. A major aspect of the design was that a channel
was cut into the moraine, and a gate was constructed to allow water to be released
as necessary. In addition, an early warning system was simultaneously
established in 19 villages downstream of the Rolwaling river. Local villagers
were actively involved in the design of this system to ensure that they feel
safe from potential flood events and are also made aware about the potential
damages. Source: Raut (2006)
Maldives
The population of Maldives
mainly depends on groundwater and rainwater as a source of freshwater. Both of
these sources of water are vulnerable to changes in the climate and sea level
rise. With the islands of the Maldives being low-lying, the rise in sea levels
is likely to force saltwater into the freshwater lens. The groundwater is
recharged through rainfall. Although the amount of rainfall is predicted to increase
under an enhanced climatic regime, the spatial and temporal distribution in
rainfall pattern is not clear (Ministry of Environment and Construction 2005).
Pakistan
Wescoat (1991) studied the
potential impacts of climate change on the Indus River basin. The study
concluded that the total annual run-off from the upper basin is likely to
increase by 11% to 16%. It estimated that although increased run-off could be
advantageous for water supply and hydropower production it could aggravate
problems of flooding, waterlogging, and salinity in the upper basin. Also, even with an overall water surplus,
shortages might occur in local areas of the highly productive Punjab rice–wheat
zone and in the unglaciated valleys of the upper basin. These areas
currently lack adequate storage, conveyance, and irrigation management. Studies
also indicate a negative impact on cotton, detrimental to the economy as it is
the main cash crop of Pakistan.
Sri
Lanka
Studies indicate that much of the water from heavy rainfall
events in Sri Lanka would be lost as run-off to the sea.
Box 3. Climate variability and water
stress in the Uttaranchal Himalayas
The Lakhwar river basin lies in
the mid-Himalayan ranges in the north Indian state of Uttaranchal. While only
14% of the cultivable area in the hills is irrigated, the region has had a
tradition of harvesting water from springs, snowfed streams, and rainfall.
However, a 1996 study found that in about half of Uttaranchal’s villages,
springs have either ceased to yield water or do so only in the rainy season.
Under the HadRM2 scenario, this region is predicted to experience a net
decrease in the volume of rainfall as well as a decline in the intensity of
rainfall in 2041-60 compared to 1961-98. There is likely to be an increase in
the number of days of light intensity rainfall that is lost in satisfying soil
moisture needs, while the heavier rainfall events needed to generate runoff
become less frequent. It is estimated that total flows will be reduced by
20-30% under this climate change scenario. The potential impacts could be
reduction in ground and surface water availability, level of crop yields and
water quality. Community interactions revealed the general perception that
rainfall has declined and the onset of the monsoon has become erratic. There
was concern that rainfall is lost to surface runoff, streams and springs are
drying up, and soil moisture has declined. In response to changing economic
incentives, the cropping pattern has changed from a mix of crops for self-consumption
to predominantly maize, but there is little profit from agriculture due to the
fragmentation of landholdings in the hills, lack of labour due to migration to
cities, and absence of irrigation facilities.
Source: Narula et al (2004), Kelkar et al (2006)
2.5 Damages due to natural disasters
As mentioned before, the
countries of South Asia are already highly exposed to the risk of natural
disasters. The high variability of monsoon climate causes a high frequency of
climate related disasters, such as the floods, drought and heat waves. These
impacts have hazardous implications for dams built in mountainous areas,
tourism-based occupations in coastal areas, and agriculture in flood-prone
areas. The economic magnitude of such impacts cannot be understated, for
instance, Bangladesh lost about half a million tonne of rice, or 30% of the
country’s average annual foodgrain imports, each year due to floods during
1962-88 (Paul and Rashid 1993). In 1998, prolonged flooding resulted in
estimated losses worth 1.5% of the GDP (Mirza 2002).
India
The vulnerability of India’s
coastal areas is highlighted in Jagatsingpur, where loss of mangroves due to
biotic and abiotic pressures in the past few decades has left the coast exposed
to the fury of cyclones and storm surges. Household
surveys in Orissa, indicate fall in production levels due to floods by 67 % in
the kharif season.
Incidence of sickness, mainly
water borne illness such as cholera, diarrhoea and dysentery are reported due
to poor sanitation, poor sewerage systems and access to potable drinking water
facilities during floods. Households cope by reducing food intake to maintain
their food supplies for the duration of the flood. Expenditure shifts from food
consumption towards shelter and medicine. The flood also manifests itself in a
breakdown of livelihoods and the ensuing economic compulsions have a direct
bearing on the education of children. 40% school dropouts were recorded in
Sunadiakandha village of Orissa. Children are forced to withdraw from school
and engage in work. Moreover, the flooding of school structures also leads to
the suspension of education at least till the floodwaters recede. Other
livelihood sources are also impacted to varying degrees. Farming households
attempt to reduce expenditure by cutting back on labour hiring. Incomes from
dairy activities decrease often because of livestock mortality and sale of
cattle in the wake of floods. Lack of education restricts the opportunity to
migrate elsewhere in pursuit of better employment avenues into skilled jobs
(TERI 2007). Other studies have also shown that households in debt are likely
to adopt livelihood options that provide quick returns but low returns. E.g.
they may accept local, low-wage, casual work rather than travel long distances
to find buyers for their hand-made crafts (Nabarro et al 1990).
Bhutan
In Bhutan, the entire northern upper land has
glacier/snow-fed lakes in the mountaintops. Increased temperature and greater
seasonal variability in precipitation will lead to accelerated recession of
glaciers and result in increase in the volume of these lakes (IPCC 1998). This
might result in flash floods causing severe damages in terms of loss of lives,
economy, and infrastructure in the valley. In 1994, a glacier lake outburst in
the Lunana region flooded and damaged everything in the lower valleys of
Punakha and below, illustrating the high degree of vulnerability to such
extreme events.
Nepal
A survey done by ICIMOD and
UNEP, highlights that 26 lakes in Nepal are categorised as dangerous due to
threat to glacier lake outburst floods (GLOFs) (WWF 2005). As highlighted by
IPCC (2001), glacial melt is expected to increase under changed climate
conditions, which would lead to increased summer flows in some river systems for
a few decades, followed by a reduction in flow as the glaciers disappear. DHM (2004) found that almost 20% of the
present glaciated area above 5000 m altitude is likely to be snow and glacier
free with an increase of air temperature by 1ºC. Similarly, a 3-4ºC temperature rise would result in the loss of
58 to 70 % of snow and glaciated areas with threat of GLOFs. Shrestha et al
(2003) revealed increasing number of flood days and consecutive days of flood
events in Nepal, and 26 lakes have been identified as dangerous with respect to
glacier lake outburst floods (WWF 2005). Haritashya et al (2006) used remote
sensing techniques to observe surging and variation in the frequency and size
of supra-glacial lakes in the Hindukush and Karakoram Himalayas. In Putalibazar municipality of Syangja
district, Nepal, disaster losses show an increasing trend over the last 20
years not only due to a recorded increase in rainfall but because of increased
settlements in the floodplains and improper road construction (Shreshtha
2006).
Maldives
Beach erosion is now among the
most serious environmental issues facing the islands of Maldives. On many
islands, the sand at the beach and shoreline are being washed off at a greater
rate than it is accreted. The process of coastal erosion and accretion is
extremely complex with interrelations to climatic, geological, oceanographic,
biological and terrestrial processes affecting the growth and stability of the
reefs and island structures. Over 80% of the land area in the Maldives is less
than 1 m above mean sea level. Being so low-lying, the islands of the Maldives
are very vulnerable to inundation and beach erosion. Presently, 50% of all inhabited islands and 45% of
tourist resorts face varying degrees of beach erosion. Coastal infrastructure
is also highly vulnerable to the impacts of sea level rise and extreme events.
Given the geophysical characteristics of the islands and the population
pressure, all human settlements, industry and vital infrastructure lie close to
the shoreline. According to the State of Environment 2004, more than 73% of the inhabited islands have buildings less than 100
feet away from the shoreline. 2 % of the islands have building right at the
shore line. And more than 55 % of the islands have buildings less than 50 feet
from the shoreline.
Sri
Lanka
Significant erosion is already
evident on many of Sri Lanka’s beaches. This is likely to increase
significantly with accelerated sea level rise. A rise in sea level would tend
to cause a shoreline recession except where this trend is balanced by the
influx of sediment. In a 30 cm sea level rise scenario, the study projects a
possible shoreline recession of about 30 m and for a 100 cm scenario, the
shoreline retreat is expected to be about 100 m.
A one metre rise in sea level
could drown most of the coastal wetlands in Sri Lanka. Another important
concern is related to the intrusion of salt water. Salt-water intrusion is already affecting approximately 15,000 hectares
of paddy fields in the Galle district. Sea level rise would also have
adverse effects on infrastructure facilities, such as ports, harbours, and
coast protection structures. MENR (2000) reports that the extent of land loss
due to 0.3 to 1 m sea level rise in Sri Lanka is as follows:
Table 6. Sea level
rise scenarios for Sri Lanka
SLR scenario
|
Land loss
on south west coast (sq km)
|
Area
inundated around lowlands adjacent to marshlands, lagoons, and estuaries of
south-west coast (sq km)
|
0.3
|
6.0
|
41.0
|
1.0
|
11.5
|
91.25
|
Moreover, high intensity
rainfall will contribute to short term inundation with impacts on life and
infrastructure. Flash floods would be a significant problem in low-lying areas,
while in hilly areas the problems may be landslides and destabilization of
road/rain embankments (MENR 2000). A
high resolution multiple hazard analysis (World Bank 2005) showed marked
spatial variability, with the hotspots including Kegalle and Ratnapura
districts in the south west, and Ampara, Batticaloa, Trincomalee, Mullaitivu,
and Killinochchi districts in the northeast.
2.6 Shifting forest patterns
Climate change will aggravate existing human pressures on
forests. Shifts in vegetation patterns could reduce the production and supply
of timber and non-timber forest products. There could be a higher burden on
highland grazier communities who will need to cover greater distances in search
of pastures. Mangrove forests which provide fodder and fuelwood to local
inhabitants are also vulnerable.
Pakistan
The vulnerability of Pakistan’s
coastal mangrove forests to the rise in sea level is a matter of great
ecological concern. The mangrove forests
along the Indus Delta are an especially diverse ecosystem. They provide
fuelwood and fodder to local inhabitants and are breeding grounds for an estimated
90% of shrimps that are exported. Pakistan’s national communication report
states that detrimental impacts of climate change on rural livelihoods would
result in more people being forced to seek employment in urban areas (MoE
2003).
Sri
Lanka
The climate change scenarios
predicted for Sri Lanka indicate significant changes in temperature and
precipitation by the year 2070. The forest composition is likely to change and
affect timber production. Somaratne and Dhanapala (1996) estimate a decrease in
tropical rainforest of 2-11% and an increase in tropical dry forest of 7 -8%.
This study also indicates that increased temperature and rainfall would result
in a northward shift of tropical wet forest into areas currently occupied by
tropical dry forest. The most vulnerable
forest areas in Sri Lanka are likely to be the Sinharaja Forest Reserve and
Peak Wilderness Forest Reserve. These changes would probably lead to the
elimination of most Sri Lankan endemic species. With a likely increase in
extreme events like droughts, the incidence of forest fires may also increase.
Favourable conditions for pests and diseases might impact the quality of
forests. Threat to mangroves due to rise in 20 cm sea level is also predicted.
India
The National Communication (GoI
2004) presented the impact of climate change on forests using BIOME 3 model for
about 1500 grids (50 km X 50 km scale). The study predicted the equilibrium
composition of different vegetation types under the control and the greenhouse
scenario run. The underlying hypothesis of the model was that a combination of
vegetation types to achieve the maximum Net Primary Productivity (NPP)
represents the equilibrium vegetation. The results show shifts in forest
boundary, changes in species assemblage or forest types, changes in net primary
productivity, possible forest die-back in the transient phase, and potential
loss or change in biodiversity. An increase in area under xeric shrublands and
xeric woodlands replacing dry savanna is indicated in central India. Enhanced
levels of CO2 are projected to result in an increase in the NPP of forest
ecosystems over more than 75 per cent of the forest area. Even in a relatively
short span of about 50 years, most of the forest biomes in India seem to be
highly vulnerable to the projected change in climate. About 70 per cent of the
vegetation in India is likely to find itself less than optimally adapted to its
existing location, making it more vulnerable to the adverse climatic conditions
as well as to the increased biotic stresses. Biodiversity is also likely to be
adversely impacted. These impacts on forests will have adverse socio-economic
implications for forest-dependent communities and the national economy. The
impacts of climate change on forest ecosystems are likely to be long-term and
irreversible. Thus, there is a need for developing and implementing adaptation
strategies to minimize possible adverse impacts. Further, there is a need to
study and identify the forest policies, programmes and silvicultural practices
that contribute to vulnerability of forest ecosystems to climate change.
A smaller study focussing on the Doon Valley in northern
India (Negi 2000) shows that a sudden rise in both maximum and minimum
temperatures has been recorded during 1951-60, owing to increased deforestation
around Doon valley during the decade. The percentage contribution of evergreen
species was 69% in 1958, which has reduced to 24% by 1998. While on the other
hand the contribution of deciduous species increased from 31% in 1958 to 76% by
the year 1998. This is again attributed to increase temperatures followed by
reduction in total rainfall, which causes moisture limitations in the region, a
situation favourable for deciduous species. The study reflects a 19% reduction
in forest corridor in the region from 1960 onwards. The changing environment of
Doon valley has ultimately altered the microclimate of sal forest from moist to
dry in the Dehradun Forest division range, this has led to mass scale mortality
in moist sal. The gaps created are being colonized with Mallotus phillipensis,
Miliusa velutina and Ehertia laevis, which is expected to provide favourable
conditions in due course of time for cycling succession of Shorea robusta, if
protected.
Box
4. Observed shifts in forest patterns in Uttarkashi Forest Division, India
Mountain ecosystems have been shown to be
some of the most vulnerable to climate change both from an ecological and a
socio-economic perspective (Deshingkar et al. 1996). People who reside in these
areas tend to be more dependent on their forest resources for a livelihood as
it is harder to cultivate the land. Ecological communities in mountainous areas
are strongly regulated and defined by climatic factors such as temperature and
precipitation. Paul et al (2003) assessed the nature and extent of
climateinduced vegetation change in Uttarkashi Forest Division of Uttaranchal
and its consequent impacts on the livelihoods of communities in the region.
The Uttarkashi Forest Division lies
between the latitudes 30025'N and 310 27'N and longitudes 780 9' E and 79025'E.
The dependence of the people on forests is very high: they depend on the
forests for fodder, grazing of animals, fuelwood and small timber. The study
shows that there has been a discernable change in the climate of the study area
in recent decades. The main trends indicate a decrease in precipitation
especially over higher altitudes, change in precipitation pattern, warming
leading to milder winters, warmer springs and the recession of glaciers. The
observed changes in climate correspond with observed changes in the phonology
of some species in the study area. The phonological changes taking place in
this region, namely the earlier flowering and fruiting of various species and
the implied lengthening of the growing season is likely to affect the
distribution and availability of various non-timber forest products.
One of the observations made at lower
elevations was that in the area around Saur village, Jalkurgad Block
(compartment- 29), Chir (Pinus roxburghii) had begun to grow in areas formerly
occupied by ban oak (Quercus leucotricophora). About 50 years ago, the stand
used to be about 90% oak and mixed species and only 10% pine cover, according
to local elders. Now they say the proportion of pine has increased to 50% by
replacing the other species. The pine at this site appeared to be about 30
years of age. The respondents attributed this change mainly to a gradual
increase in temperature and the consequent drying out of the soil. . The
replacement of mixed species forests and oak forests by Chir pine leads to a
significant decrease in the quality and availability of fodder for livestock,
clean water and good fuelwood. The large root systems of Chir pines also draw
down the water tables.
3. Coping with
a changing climate: current capacity and limitations
While the previous section
highlighted the likely impacts of climate change and increased climate
variability, people in South Asia are already coping with current levels of
climate variability. But it must be recognized that there are wide disparities
in the capacity to adapt, and that access to adaptation options is severely
constrained by economic resources, technological factors, access to information
and skills, infrastructure, and institutions. Enhancing the capacity to cope
with current stress can also help adapt to future changes to some extent.
Conditions worsen with reduced
capacity of human systems to cope with changes. Many countries in South Asia
vulnerable to the changes in the climate are also under pressure due to high
rates of population growth, poor living conditions and deep embedded poverty. A
multi-agency consultation draft (AfDB et al 2002) brought out at COP-8
highlighted that the adverse effects of climate change shall neutralise the
efforts to achieve the Millennium Development Goals thereby increasing the
vulnerability of the poor. Kartha et al (2006) mention that the communities
most vulnerable to impacts are the poorest in the society and that climate
change hinders the prospects of their development in the absence of proactive
adaptation.
Figure 8. Vulnerability
of Indian agriculture to climate change
Source: O’Brien et al (2004), TERI (2003)
In a detailed study of
district-level vulnerability of Indian agriculture, adaptive capacity was
mapped as a composite of biophysical, socioeconomic, and technological factors,
and juxtaposed against a map of sensitivity to climate change (using output
from the HadRM2 downscaled general circulation model). The map (Figure 8)
revealed higher degrees of adaptive capacity in districts falling in the
Indo-Gangetic plains (except for Bihar) and lower degrees of adaptive capacity
in the interior regions of the country, including districts in Bihar,
Rajasthan, Madhya Pradesh, Maharashtra, Andhra Pradesh, and Karnataka (O’Brien
et al 2004).
Community-level case studies
carried out in highly vulnerable districts brought out the wide disparities in
adaptive capacity across villages, across communities in villages, and specifically
across individuals depending on land holding size, education, caste, etc. While
larger farmers are able to benefit from government subsidies (e.g. for drip
irrigation), formal bank credit, crop insurance, and access to larger markets,
smaller farmers are disadvantaged due to lack of information and dependence on
local merchants for credit.
In Anantapur district in Andhra
Pradesh, groundnut is the principal crop but farmers were facing a crisis due
to growing import competition and stagnating market prices, which coincided
with a multi-year drought. Farmers are unable to shift to production of more
profitable crops, due to lack of alternative, drought-tolerant, and
economically viable crops. Rainfed crops (such as different fruit varieties),
which could be economically viable, either require too much capital or do not
have long enough shelf lives to be marketable under current circumstances.
Without irrigation, water harvesting systems, or alternatives to groundnut, dry
land farmers in Anantapur are highly vulnerable to climate change.
Box
5. Coping options of small and marginal farmers in Jhalawar district,
Rajasthan
Jhalawar district in Rajasthan is located
in a semi-arid area that receives an average of 943 mm of rainfall annually. In
addition to high degrees of climate sensitivity, it also ranks among the
districts with the lowest adaptive capacity. Over the past 10 years, many
farmers in Jhalawar have shifted from traditional crops, such as sorghum and
pearl millet, to soybean, which receives higher market prices and yields quick
returns owing to a shorter life cycle. Farmers in Jhalawar are also found to be
highly vulnerable to climatic variability. In 2002, Jhalawar experienced its
fourth consecutive year of drought, and crop yields were substantially reduced,
particularly for the majority of farmers who lack access to irrigation.
Rain-fed
agriculture is practised in village Lakhakheri Umat, where 94% of the farmers
have small or marginal landholdings. A review of coping mechanisms reveals that
a very small group of semi/medium farmers is able to cope with adverse climatic
conditions merely through the sale of available stocks (see figure below). On
the other end of the spectrum, landless labourers can only resort to seasonal
migration due to lack of any productive assets or availability of alternative
employment options in the village. Small/marginal farmers use a variety of
adaptation options such as sale of cattle, shifts to other crops, labour, as
well as seasonal migration. This range of options, however, constitutes only
temporary coping measures. Options that enhance longer-term adaptive capacity
(such as institutional credit, crop insurance, and use of drought-resistant
varieties) are not used by farmers due to procedural complexities and stringent
eligibility criteria, compounded by lack of awareness.
In village Anghora in the same
district, however, located at the head-end of the dam, access to irrigation
opens up a range of coping options. Farmers in this village cultivate a
combination of oranges and soybean for sale in the market. Even small and
marginal farmers are able to tide over poor years through use of available
stocks and by resorting to credit or loans, and are also better prepared by
adopting drought-resistant varieties of crops.
In a recently completed study
funded by the World Bank, a methodological framework was sought to be
established to quantitatively assess the vulnerability of households to
droughts and floods where income was used as a proxy of well being to highlight
factors that play a key role in reducing vulnerability. Analysis of primary
datasets on coping capacities and income drops during drought, collected from
field based surveys were used to suggest suitable interventions to be taken up
at the national, state and local levels. Communities who are least resilient to
recovery and have a limited capacity to adapt are considered to be highly
vulnerable to climate change. Besides locational aspects, there are infrastructural,
institutional, socio-economic and political factors that influence adaptive
capacities of households. Observed community responses in coping with climate
variability have been analysed at a micro level, i.e. at the household level,
and at a meso level, i.e. at the community or village level. The determinants
of both provide a composite assessment of vulnerability. Case studies carried
out indicate that vulnerabilities across communities and households are
triggered by many factors including dependence of communities/ households on
climate sensitive sources for a living, as well as, access to other safety nets
viz., savings, insurance, abilities to diversify cropping patterns,
opportunities to diversify income-generating activities and infrastructure
built including irrigation and communication facilities (TERI 2007).
The section below highlights a
few examples of adapting to existing climate stresses. Natural resource
management, buttressing food security, development of social and human capital and
strengthening of institutional systems are found to be the most commonly
resorted measures that are employed (Adger et al., 2003) that have the
potential to enhance adaptive capacities. Such processes, besides building the
resilience of communities, regions and countries to shocks and stresses due to
climate variability and change are good development practice in
themselves.
3.1 Social networks
Social networks and community
based systems play a major role for coping with climate stresses, especially
given the paucity of formal credit or insurance services in rural areas. Rural
households respond to climate stress by turning to moneylenders, selling
assets, reducing inputs in farming, or diversifying their activities. Another
strategy is to send family members to work elsewhere and remit payments. While
such risk management strategies reduce vulnerability in the short term, they
can increase vulnerability over the longer term by promoting sub-optimal asset
allocation. For instance, small farmers may opt for multiple cropping to reduce
income variability rather than risk growing the most profitable crops. Such
traditional risk-sharing strategies also break down when disasters affect an
entire community or area. For instance, the supercyclone of 1999 badly affected
Jagatsingpur district of Orissa. One of the villages in this district,
Sunadiakandha, which is located close to the main coast, has experienced
increasing salinity and dwindling agricultural productivity. This reflects in
the low average incomes in the village, across all land categories. Many people
have migrated elsewhere in this village in pursuit of alternate employment, as
there is no opportunity in the village after heavy damage from the cyclone.
This is seen in the income profile, where almost 20% of the income is received
from remittances.
Box 6. Social networks in Bangladesh
and India
In village Khonchapara in
district Gaibandha, Bangladesh, Oxfam and its local partner organization, Samaj
Kallyan Sangsthan introduced a new variety of bean and papaya seeds at low
cost, which could be harvested after floods when all the paddy crop is
destroyed. The new agricultural crop helped farmers tide over the crisis period
for food and income. In Bangladesh, it is not just the farming households who
suffer losses during floods but also potter, petty traders, and day labourers
due to difficulties in transportation, storage and drying. However, voluntary initiatives have been
launched to impart skills for
small enterprises like shoe making, weaving, carpentry, etc. In Gujarat, India,
the Self Employed Women’s Association (SEWA) successfully used the government’s
drought relief fund as a revolving fund for investing in women artisans who
could embroider during the drought season and sell the product through SEWA
cooperatives. The fund grew as women repaid the loan from their earnings, and
used it as an available capital resource.
Source: Kapoor (2006), UNFCCC (2007)
Being located along the river
Devi in Orissa, floods majorly affect Tarasahi every year and the villagers are
devoid of timely help and relief, as the village is rendered cut-off from
nearby habitations during times of flood. However the villagers have realized
the risks involved in investing in cultivation and have engaged themselves in
many other activities such as dairy, fishing, construction activities etc.
Around 3000 litres of milk is produced in Tarasahi daily and finances from the
Self Help Groups (SHGs) have helped the villagers to buy cattle and sell milk
in home fed centres within the village. There are 34 SHGs in the village. It
was also observed that women have shops in their name (betel shops, grocery
shops). Men and women from the Scheduled Caste community are involved in other
income generation activities like fishing and wage labor – construction
activities.
Source: TERI (2007)
3.2 Community managed resources
However, community management
of resources such as irrigation, roads, and forests is being increasingly
recognized as the right approach to ensure judicious and equitable use.
Examples include participatory irrigation management and water harvesting in
Hiwre Bazaar, Maharashtra (Bhadwal 2006), growth of less water intensive crops
(TERI 2007) and rural road user groups in Putalibazar municipality, Nepal (Shreshtha
2006). In fact in times of political conflict (often exacerbated by competition
over dwindling natural resources), when there is no respect for government
property, community managed forests have been seen to perform better (Nagendra
2006). This study looked at Mahananda Wildlife Sanctuary, which is located in a
densely populated area, and subject to frequent people-park conflicts. In the
presence of Maoist rebels, restrictive governmental guidelines lead to
significant conflict. They found that regular monitoring makes a significant
difference to preventing over-harvesting, but monitoring conducted by the
community leads to lower conflict levels, and can be effective even in
conditions of overall conflict. Similarly, in the Spiti area of Himachal Pradesh,
which is a cold snowbound desert for half the year, water rights are owned
exclusively by descendants of the original settlers of the village. When water
is scarce a preferential system of irrigation rights is followed. This actually
helps ensure that crops ripen in succession and the demand for labour is spread
over the entire harvest season (UNFCCC 2007).
3.3 Diversifying income patterns
Income diversification is
extremely important but the opportunities for income diversification are
restricted by education, skills, and landholding size. Seasonal migration into
non-specialised wage labour is largely undertaken. Besides, livestock rearing
in drought affected regions and aquaculture in coastal regions that are flood
affected hold prominence as substitutes for income generation. In India case studies carried out at the
household level highlight that large farmers and to some extent farmers with
medium landholdings are less diversified compared to the small and marginal
farmers and landless categories. While it is found that small/ marginal farmers
draw their incomes from varied sources helping in the effective distribution of
risk, low level of education and appropriate skillsets render them as the
lowest earning categories. Other factors complementing diversification of
incomes include better connectivity and proximity to a town or city. In case of
floods water logged fields are found in some cases to be used as fishing
grounds to earn incomes (TERI 2007). In a case study carried out in Bangladesh
on coping capacities and diversifying incomes, flood affected communities were
found to shift from rearing poultry to care-taking ducks and geese (CARE
Bangladesh 2005). In Bangladesh, it is not just the farming households that
suffer losses during floods but also the potters, petty traders, and day
labourers due to difficulties in transportation, storage and drying. However,
voluntary initiatives have been launched to impart skills for small enterprises
like shoe making, weaving, carpentry etc (UNFCCC 2007).
Box 7. Income diversification
initiatives in Bangladesh
The south-west region of
Bangladesh faces problems of water logging caused by the combined effect of
siltation of estuary branches, higher river bed levels, reduced sedimentation
in flood protected areas, and impeded drainage, exacerbated by heavy rainfall
and sea level rise. This adversely affects available agricultural land,
impacting food production, soil productivity, and agricultural livelihoods. In
Subarnabad village in south-west Bangladesh, the Institute of Development
Education for the Advancement of the Landless (IDEAL) is implementing a project
called Reducing Vulnerability to Climate Change (RVCC), funded by the Canadian
International Development Agency (CIDA) and implemented by CARE Canada through
CARE Bangladesh. The initiatives promoted in Subarnabad focus on new livelihood
strategies for income and food generation. These include goat, duck, and hen
rearing, chicken and crab farming, tree planting, introduction of salt-water tolerant
vegetable gardens and handicraft production. IDEAL has also helped raise
awareness about climate change, personal hygiene, sanitation, and the
construction of latrines and deep tube wells. Villagers are also able to access
loans to establish small crab farming enterprises. While these initiatives are
still in the early stages, villagers have been able to slowly pay off their
loans and have begun to make some profits, and have also encouraged others to
venture into these livelihood activities.
As part of the RVCC project, an
awareness campaign was also undertaken to educate the communities about climate
change, causes, effects and adaptation strategies. The target population
included students, teachers, journalists, newspaper editors, and community
leaders in south-west Bangladesh. The campaign used radio programmes (such as
short dramas, folk songs, and interviews), eco-clubs, and development of school
curriculum to raise grassroots awareness about climate change in a
non-technical way. A key conclusion from the project was that awareness
activities when targeted in areas where a certain
project is being undertaken results in better integration and reinforcement of
ideas and involving members of the target audience in the development of
communication tools could improve the relevance of the materials and messages.
Source: Pouliotte et al (2006), Tutu and Kulsum (2005)
3.4 Traditional “innovations”
Mandarin production in Bhutan
is severely affected by long dry spells in the flowering season, to counter
which bamboos are used for drip irrigation (as a modified version of polythene
pipe drip irrigation). Similarly in northeast India, bamboo pipes are used to
divert stream and spring water to irrigate plantations. Other examples are cage
aquaculture in household ponds and waterlogged areas in Bangladesh, ploughing
fields in the Indian hills in the early morning before dew or fog has
evaporated, use of a type of grass (“pang”) to line water tanks and irrigation
channels to control seepage, and storage of seeds in cowdung in the Andamans
(UNFCCC 2007).
4.
Strengthening adaptive capacity: strategies in the context of development
Adapting to the changing
conditions of climate would form an integral part of sustainable development.
Inclusion of climatic risks in the design and implementation of development
initiatives is vital to reduce vulnerability and enhance sustainability. A
twofold link can be seen between climate change and development. One, the
impacts of climate change can severely hamper development efforts in key
sectors. For example, increased threat of natural disasters and growing water
stress will have to be factored into infrastructure development including plans
for public health infrastructure and coastal infrastructure. Second, development
policies and programmes will themselves influence the ability to be able to
adapt to the consequences of climate change. For instance, Figure 9 shows that
there are important linkages between various sectoral policies in India and the
potential impacts of climate change in those and other sectors. Policies for
forest conservation and sustainable energy will, if correctly targeted and
implemented enhance the resilience of communities and thereby reduce the
vulnerability of their livelihoods to climate change.
TERI (2005)
Developmental efforts can help
build adaptive capacity through two levels of interventions:
1.
climate-specific interventions such as drought
proofing, rainwater harvesting, awareness about available drought-resistant
varieties, better access to medium/long-range weather forecasts, and possibly
early warning networks.
2.
broader capacity building through education, access to
agricultural credit, health care infrastructure, etc.
Conversely, however, inappropriate development policies can
possibly lead to maladaptation, by ignoring local needs and priorities,
existence of multiple stresses, efficiency in resource use, and principles of
good governance.
integrated watershed management
in rainfed areas would also help increase agricultural resilience to increased
climate variability. An integrated approach would entail modifying or extending
infrastructure to collect and distribute water, adoption of decentralized
rainwater harvesting programmes, and undertaking water pricing initiatives to
tame end use demand along with removal of perverse subsidies. At a macro level,
policies can seek to improve production and distribution systems to cope with
fluctuations in crop yield.
4.1 Case of integrated water resource management in India
In India, integrated watershed
development has emerged as an effective approach in augmenting water supply
through conservation of rainwater in rainfed farming systems, which account for
nearly two-thirds of the country’s cultivated land and encompass the arid and
semi-arid regions and the drought prone areas. Interventions in dry land/ rain
fed regions that are characteristic of poor climate - dry weather and low
rainfall conditions and highly eroded soils were primarily targeted under the
programme. The IWMP suggests the employment of an integrated and coordinated
approach across various ministries to promote soil and water conservation by
optimizing land-use production systems and use of sustainable low-cost location
specific technologies (MoEF 2001). The watershed approach basically is a
project based development plan for water harvesting, water conservation and
other related social and economic activities that seek to enhance the
production potential of an area on a sustainable basis. There is growing
awareness at the central government level that integrated watershed development
can also prove a potent instrument of adaptation to climate change. There are
special programmes such as Drought Prone Areas Programme (DPAP) for almost
one-sixth of the land area in the arid and semi arid regions of the country, in
addition to the special programme of watershed treatment in the catchment of
river valley projects and flood prone rivers.
The Government of India (GoI)
has several plans and programmes to facilitate development of degraded lands to
improve conditions in rainfed regions across the country:
The Drought Prone Area Programme (DPAP) of the
GoI is aimed at soil and moisture conservation in drought prone areas. The
primary objective is promotion of overall economic development mainstreaming
marginalized and vulnerable sections.
The Desert Development Programme (DDP) was later
introduced to restore ecological balance, conservation of soil and water and to
arrest the desertification through shelterbelt plantations.
The Integrated Wasteland Development Programme
(IWDP) was introduced with the aim to develop wastelands for overall economic
development besides improving economic conditions of resource poor population.
The National Watershed Development Programme in
Rainfed Areas (NWDPRA) initiated in 1990-91 targeted improvement in
agricultural production in rainfed areas restoring ecological balance.
In order to channelise greater resources for
rainfed areas, National Bank for Agriculture and Rural Development (NABARD) set
up a Watershed Development Fund of Rs 2 billion in the year 2000-2001.
Apart from these, the River Valley Project,
Flood Prone River programme, the watershed development project for shifting
cultivation Areas (WDPSCA) were introduced to check siltation of reservoirs and
enhance productivity of degraded lands.
Institutions both governmental
and non-governmental play important roles in providing a thrust to these
programmes. Panchayati Raj Institutions (PRIs) and Non Governmental
Organisations (NGOs) have an active role to play in the implementation
component of most of these programmes.
Box
8. Example of watershed management
in India
Lakkenahally micro-watershed covers
210 acres divided by ravines into three microcatchments. This land was owned by
62 families and was vulnerable to floods. Crops were often washed away, and
many fields had not been cultivated for several years.
In 1991, three Credit Management
Groups (CMG) were formed with a total membership of 54. A Watershed Development
Association (WDA) was also established in 1992. One of the CMGs was a women’s
group with 14 members. These were small, homogenous, voluntary, and autonomous
groups that mobilized savings. They developed their own rules and regulations
governing the purpose and size of loans, interest rates, schedules of recovery,
and sanctions. They provided credit and group support to help their members
meet their livelihood needs, e.g. by providing loans for various forms of
consumption, small business and cottage industries.
The main problems faced by farmers
were erratic rainfall, low moisture holding capacity of soils, and declining
productivity. As part of a collective exercise, 75 farmers (including 35 women)
outlined a plan of action, and agreed on the contribution towards the costs of
the activities. The following activities were taken up on a priority basis:
1.
Construction of silt traps to build up adequate soil in
areas with high water storage potential. The improved water holding capacity
would reduce the risk of crop failure in these areas. Farmers who cultivate
lands in the tank bed downstream would also benefit in terms of reduced damage
by floods rushing through the ravine.
2.
Excavation of small open wells near reclaimed areas.
This provided farmers with protective irrigation, and they were able to
introduce a paddy crop.
3.
Wasteland development was taken up on 16 acres of land.
This included regeneration of a hillock, with farmers working at lower wages to
construct protection walls and plant saplings around the hillock. The grasses
were harvested and sold locally by the credit group, indicating the
sustainability of the exercise.
Hence, this approach combines
different categories of adaptation options viz. prevention and modification of
impacts and events, and changes in use.
Source: Fernandez (1993)
4.2 Mainstreaming of climate change concerns
The ongoing programmes of the Government of India to promote
sustainable agriculture, forestry and coastal zone regulation include
Drought and Flood proofing measures
Zero-tillage practices
Development of drought resistant varieties and
salt tolerant varieties
Promoting on-farm water management practices and
promotion of water conserving technologies
Kissan Credit Scheme
Promoting crop diversification
Insurance
Integrated Watershed Management Programme
Coastal Zone Management Plan
Joint Forestry Management Programme
The Government of India has
been trying to mainstream sustainable development concerns into relevant sector
policies. Several ongoing efforts
address some of these vulnerability concerns, although they are primarily
driven by the objective of sustainable livelihoods and poverty alleviation
(GoI 2006). While certain ministries like the Ministry of Agriculture, Ministry
of Water Resources, and Ministry of
Environment and Forests are conscious of the role that such
policies and programmes can play in strengthening adaptive capacity, they do not as yet explicitly incorporate
the increased risks (of temperature
rise, drought or flooding) due to climate change.
Recent initiatives by the
Department for International Development (DFID) and the World Bank in India
seek to identify how to integrate adaptation and risk reduction into their
portfolio of programmes. The ORCHID project: DFID-India Climate Risk Screening
Process aims to compile sub-national vulnerability indicators for current and
future climate change, carry out risk assessment of high priority DFID India
interventions, and develop potential adaptation and risk reduction measures.
The interventions being assessed are the following.
National Rural Water and Sanitation Programme
National Elementary Education Programme (Sarva
Shiksa Abhiyan)
National Reproductive and Child Health Programme
Phase II
Kolkata Urban Services for the Poor
West Bengal Support to Rural Decentralisation
West Bengal Health Systems Development
Initiative
Andhra Pradesh Rural Livelihoods Programme
Madhya Pradesh Rural Livelihoods Programme
Madhya Pradesh Urban Services for the Poor, and
Western Orissa Rural Livelihoods Project.
The World Bank project
“Addressing Vulnerability to Climate Variability and Climate Change through an
Assessment of Adaptation Issues and Options” has the overarching goals of
enhancing the consideration of climate and climate-related issues in India’s
development process, and achieving a more effective integration and
mainstreaming of climate issues in the Bank’s project preparation and appraisal
processes. Activities include
identification of policies, measures and
practices that might be modified to reduce vulnerabilities
analysis of appropriate institutional and
participatory mechanisms to merge current community driven development
priorities with the need to address wider environmental externalities such as
adaptation to climate change
assessment of the climate-related risks
associated with a subset of Bank operations in India.
Other relevant programmes in South
Asian countries include the Village Aid Programme and the Integrated Rural Development Programme (IRDP) facilitating
digging canals, increasing connectivity and adaptation of improved farm
practices in Pakistan; the IRDP and the Minimum Needs Programme for
infrastructure development and programmes on watershed management and on
capacity building in India; Grameen Bank programme for rural credit to rural
poor (Box 9) and the Bangladesh Rural Advancement Committee on providing
education and training in Bangladesh and irrigation projects in Sri Lanka.
Box
9. Grameen Bank operations in Bangladesh
The Grameen Bank provides small loans,
issued without formal collateral, which enable the poor to set up small
income-generating businesses and climb out of poverty. In 1984 the Bank began lending money for
housing loans. The housing loans are
available only to existing Grameen Bank borrowers who have a 100% repayment
record and have completely repaid their first two loans for income generation
activities. The Grameen Bank has developed two standard house designs. In cases of severe flooding the house can be
dismantled and the components stored and reassembled later. Loans are also
available to purchase land if a family has no land on which to build its house.
The title to the house is vested with the borrower, and in 96% of the cases
this is the woman. The borrowers repay
their loans on a weekly basis and the collateral system of peer support means
that families help each other out with payments if necessary. 617,000 houses
have been built using these loans. Source: UNFCCC (2007)
In Bangladesh, ongoing projects
intend to address food insecurity and food production shortfalls by crop
diversification and generation of other employment opportunities aiming at
community development, agricultural development, credit facilities, and
infrastructure improvement. Fish and shrimp production for domestic consumption
and exports are promoted with special emphasis on rural poverty alleviation
& employment generation. This is done by improving the capacity of local
users to manage aquatic resources in a sustainable and equitable way thereby
conserving aquatic biodiversity. All these developmental programmes play an
important role in enhancing the resilience of the poor. Rain water harvesting
and integrated development of watersheds in rainfed areas help in increasing
agricultural resilience to erratic weather events under a climate change
scenario. Additionally, at a more macro level, policies and plans can seek to improve
production and distribution systems to cope with fluctuations in crop yield.
New technologies and practices are more readily acceptable to farming
communities if well ingrained in the indigenous system. Therefore modified
traditional methods for conservation of natural resources could be adopted to
cope with these changes.
Bangladesh has its own Participatory Disaster Management
Programme (PDMP) with the focus towards disaster management and prevention, and
also adaptation to climate change. There is no national policy in place yet to
comprehensively address climate change risks. The disaster management project
mainly focuses on soft measures to reduce the impact of disasters in
Bangladesh. In particular, it aims to increase awareness on practical ways to
reduce disaster risks and losses, to strengthen national capacity for disaster
management (with emphasis on preparedness), enhance knowledge and skills of key
personnel in handling disasters, establishing disaster action plans in the most
disaster prone areas promoting local–level risk reduction measures, and
improving early warning systems.
The UNDP Comprehensive Disaster
Management Programme (CDMP) aims to establish a systematic approach to
prediction, monitoring, protection, evacuation, land use zoning, and
information dissemination to build adaptive capacity, which in turn requires
comprehensive and appropriate information produced and delivered at the right
time, to the right people and agencies. Bangladesh’s interim poverty reduction
strategy paper (IPRSP) recognizes the direct links between poverty and
vulnerability to natural hazards. It notes that the incidence of disasters is
likely to increase rather than decrease particularly due to the impacts of
global warming. Climate change so far is not mentioned in the context of
planning vulnerability reduction measures.
Box 10. Need to mainstream climate change
adaptation measures in Bangladesh
Sunderbans
The Bangladesh Sunderbans support
close to a million people, whose lifestyles are well adapted to tidal and
seasonal variations in water and salinity levels. For instance, dwellings are
built on raised platforms, farmers cultivate flood-tolerant rice during the
monsoon, and harvest salt-tolerant fish during the dry season. These traditional
livelihoods however, are under pressure from rapid population growth, poaching
of wildlife, increased felling of timber due to growing industrial demand, and
shrimp farming which boomed as a major export industry in the mid-1980s. The
impact of climate change on the Sunderbans will constitute an additional
stress. Adaptation measures need to be mainstreamed into a wider system of
response to the climatic and non-climatic pressures on the ecosystem.
Source: Agrawala S (2005)
A note of caution must be
sounded when we speak of mainstreaming climate change into development policy.
It is not always necessary that the two are in agreement, or even that climate
change policies are internally consistent. For instance, planning for reduced
streamflow due to climate change may necessitate the building of storage
reservoirs rather than run of the river projects in mountainous areas. However,
the increased risk of GLOFs would indicate the contrary (Agrawala 2005).
Similarly, development through income diversification may take the form of
encouragement of tourism, horticultural production, mining, etc at the expense
of fragile mountain resources (Jodha 1995). Highly rigid engineering type
interventions may actually lock a system or community into an inflexible pattern
of production and make them more vulnerable to climate change over time. Given
the complexity and inter-connectedness of social, economic, and ecological
systems, adaptation interventions that address only a part of the system may
not have the desired impact, and may even be maladaptive. Moench et al (2003)
argue that ‘when situations are characterized by variability, uncertainty, and
change, conventional planning scenarios provide little guidance regarding
future needs and conditions.’ For adaptation, ‘specific solutions are less
important than the existence of processes and frameworks that enable solutions
to be identified and implemented as specific constraints and contexts change’.
TERI and IISD (2006) are exploring the idea of
“adaptive policies”, i.e. policies that themselves respond
to changes in underlying conditions, either through in-built trigger mechanisms
or through formal processes of feedback and learning. Through this approach
institutions and policies could be designed to enhance the resilience of
communities and their overall ability to respond to change.
However, there are numerous win-win options which can help
integrate vulnerability reduction into development, such as:
-
introduction of drought-tolerant and salt-tolerant crop
varieties
-
siting of hydropower facilities in low risk locations
-
early warning systems
-
construction of embankments and appropriate housing in
flood-prone areas - application of information and
communication technologies in rural areas
4.3 Role of government and other stakeholders
In Bangladesh, ongoing projects
address food insecurity and food production shortfalls by crop diversification
and generation of other employment opportunities aiming at community
development, agricultural development, credit facilities, and infrastructure
improvement. Fish and shrimp production for domestic consumption and exports
are promoted with special emphasis on rural poverty alleviation and employment
generation. This is done by improving the capacity of local users to manage
aquatic resources in a sustainable and equitable way thereby conserving aquatic
biodiversity. All these developmental programmes play an important role in
enhancing the resilience of the poor. Adaptation often requires a chain of
services that only the government can provide. For instance, high value crops
like medicinal plants and vegetables can be grown by farmers to diversify their
incomes, but these need markets, storage, and transport facilities that require
government intervention.
However, there are important
roles that can be played not just by the government but by the private sector
and by voluntary agencies. Farmers in Chitradurga in south India are being
encouraged through state government and private initiatives to cultivate
alternative crops, such as areca nut, pomegranate, and banana for income
diversification. Over the last five years, export companies have increasingly
entered into buy-back contracts with farmers for gherkin production aimed at
European markets, with plans to expand to other vegetables. Interestingly, due
to the economics of gherkin cultivation, it is the small and marginal farmers
with small landholdings and family labour that are most able to benefit from
such contract farming. Kisan kendras (farmer centres) set up by corporates also
provide scientific soil testing services, market information, and transport
facilities to cultivators of horticultural crops, in return for a subscription
fee. In Raipur in central India, fragrant varieties of rice were traditionally grown
in the southern part of the district and commanded high economic value. But
adulteration at the merchant level has reduced the prices for these varieties
over the last 10 years. In a bid to increase yields, farmers have started
replacing organic manure with chemical fertilizers, but this has made the crop
highly vulnerable to pests and diseases. Local NGOs are playing an important
role in conserving indigenous varieties of seeds in the region by setting up
village-level seed banks that are also useful in the event of drought and crop
failure.
Similarly there is a potential
role for public-private partnerships in the provision of financial services in
rural areas. Village case studies in Orissa highlight that many households are
in a debt trap. Loans are taken to cope with droughts and floods from private
money lenders at high rates of interest. Formal credit is not used due to lack
of information, lack of trust, complex procedures, and lack of assets for
collateral. When loans are taken for agriculture and the crops are washed away
during floods, households are unable to repay the loan and continue to face
high rates of interest, further spiralling them into poverty (TERI 2007).
Experience with microfinance in recent years has shown that the poor are bankable,
although there are considerable challenges of scale and profitability.
Similarly, there is increasing discussion of microinsurance schemes, which are
backstopped by public or donor funding in the event of natural disasters.
Box
11. Weather-indexed insurance for agriculture
The recent liberalization of the Indian
insurance market has opened the door for foreign and private players who have
introduced innovative products in search for new markets. These include
index-based weather risk insurance contracts which have emerged as an
alternative to traditional crop insurance. These are linked to the underlying
weather risk defined as an index based on historical data (e.g. for rainfall,
temperature, snow, etc) rather than the extent of loss (e.g. crop yield loss).
As the index is objectively measured and is the same for all farmers, the
problem of moral hazard is minimized, the need to draw up and monitor
individual contracts is avoided, and the administration costs are reduced.
Weather-indexed insurance can help farmers avoid major downfalls in their
overall income due to adverse weather related events. This improves their risk
profile and enhances access to bank credit, and hence reduces their overall
vulnerability to climate variability. Unlike traditional crop insurance where
claim settlement may take up to a year, quick payouts in private weather
insurance contracts can improve recovery times and thus enhance farmers’ coping
capacity. Although the lead was taken by private sector entrants, in 2005, the
public sector AIC also launched an indexed insurance scheme for deficit
rainfall across 10 states. AIC could draw on its established network to sell
insurance to more than 125,000 farmers growing crops over 98,000 hectares,
covering a risk of approx Rs 560 million, earning a premium of Rs 32 million.
Claims were processed in a month from the close of indemnity period.
Compensation of Rs 1.2 million was paid to nearly 300 farmers in two stations
in Uttar Pradesh.
Source: TERI and IISD (2006)
Few community level initiatives
exist that are localized and driven by local leadership, e.g. Hiwre Bazaar and
Ralegaon Siddhi in Maharashtra and Tarun Bharat Sangh in Rajasthan. Hiwre
Bazaar in Ahmednagar district, Maharashtra state, India lies in a drought prone
region, but many villages had not been covered under the Government of India’s
Drought Prone Area Programme 15 years ago. Yet the major crop grown was highly
water-intensive sugarcane, due to ready demand from sugar mills in the state.
However, the result was dramatically falling water tables and reduced
availability of drinking water. In this situation, the village headman took the
lead in introducing soil conservation and groundwater recharge measures in the
village with support from a small number of people. Not only were these
activities successful in raising water levels, the community also shifted to a
less water-intensive cropping pattern of maize and onions. This case highlights
how strong leadership can transform the resilience of a community to cope with
drought (Bhadwal 2006). The Tarun Bharat Sangh has helped villagers in
Rajasthan with watershed management by reviving water harvesting traditions
such as check dams and tanks. The organization has helped establish 3000 water
harvesting structures in 650 villagers of Alwar district (TBS website).
Such initiatives need to be
scaled up, which is only possible if we understand the processes behind the
success stories, and use them as testimonials for replication elsewhere. The
government is a key stakeholder in this process as it has the resources and
policy instruments to scale up best practices. However, institutional factors,
power relations, and social hierarchy play critical roles in allowing or
hindering access to adaptation measures. A key factor therefore is empowerment
at the grassroots level, through strengthening of self help groups and local
governance structures. Community driven initiatives can work with government or
planned initiatives – the need is on the one hand for policy to provide
incentives to encourage communities to use natural resources more judiciously,
and on the other hand, to integrate and replicate good practices.
Micro studies in Orissa (TERI
2007) showed that households living in flood prone areas feel that the most
significant schemes of the government are the housing scheme, Indira Awas
Yojana, the Food for Work Programme, and the rural road building scheme,
Pradhan Mantri Grameen Sadak Yojana. These schemes have provided relief in the
aftermath of floods and cyclones, enabled recovery and rebuilding, and helped
improve connectivity selling produce and finding alternative employment. The
key message is that government policies, public-private partnerships, corporate
and voluntary initiatives all can be meaningfully harnessed to build resilience
to climate change.
5.
Conclusions
Various studies summarized in
this paper show that climate change is a grave and immediate issue for South
Asia. The impacts of climate change on food security, access to water, human
health, ecosystems, urban areas, and frequency of disasters will have severe
implications for the achievement of sustainable development. Present coping
capacity is very limited particularly for small farmers, rural communities
eking out precarious livelihoods dependent on natural resources, urban poor
living in marginalised conditions, women and children. There are several good
practices and policies, some of which are showcased above, but these need to be
scaled up. While government programmes in these sectors address issues relevant
for strengthening adaptive capacity to climate change, they do not as yet
explicitly incorporate the increased risks due to climate change.
Forums like the South Asian
Association for Regional Cooperation (SAARC), Bay of Bengal Initiative for
Multi-Sectoral Technical and Economic Cooperation (BIMSTEC) and South Asia
Cooperative Environment Programme (SACEP) promote regional cooperation to
address some of these issues. Besides, there are major bilateral and
multilateral initiatives taken forward by the World Bank, the Department for
International Development, the International Development Research Centre and
the Asian Development Bank. One of the three pillars of the World Bank
Investment Framework seeks to focus on supporting adaptation to climate change.
An adaptation work plan has been outlaid with components relating to screening
public investments, adapting existing capital stocks, developing best practice
standards, promoting disaster preparedness, developing a research programme
with agriculture and water resource as focus areas, finding ways to support
incremental costs to promote adaptation in vulnerable regions and conducting
country specific studies. The Nairobi Framework on Impacts,
Vulnerability and Adaptation shall
assist all countries, in particular developing countries, including the least
developed countries and small island developing states to improve their
understanding on impact, vulnerability and adaptation issues to be able to make
informed decisions on practical adaptation actions and measures to respond to
climate change.
However, a sustained movement at
a localised scale is required to facilitate meeting the basic needs of many who
are deprived of access to food, safe drinking water and sanitation and shelter
requirements. A holistic approach which addresses issues of natural resource
management, sustainable livelihoods, and climate change adaptation requires
development of a stronger knowledge base at various levels (local, national and
global) for enhanced understanding of ecosystem functions and capacity,
valuation and internalisation of value of ecosystem services, and stakeholder
engagement in ecosystems management.
Annex. Summary of climate
change vulnerability and impacts in South Asian countries
Country
|
Vulnerability to Climate
Change
|
Bangladesh
|
Water Resources
Water
related impacts of climate change likely to be most critical– largely related
to coastal and riverine flooding, but also enhanced possibility of winter
(dry season) drought in certain areas. Both coastal flooding (from sea and river water), and inland flooding
(river/rain water) are expected to increase.
Coastal zones
Acute
impacts on coastal zones due to the combined effects of climate change, sea
level rise, subsidence and changes of upstream discharge, cyclones and
coastal embankments. Four key types of
primary physical effects i.e. saline water intrusion, drainage congestion,
extreme events, changes in coastal morphology identified as key
vulnerabilities in the coastal areas.
Agriculture
The
estimated impacts on rice yield shall vary between -6% to +14% depending on
different climate change scenarios (Rosenzweig and Iglesias 1994 and Matthews
et al 1994)
Agricultural
areas in tropical Asia and Bangladesh in particular, are vulnerable to many
environmental extremes such as floods, cyclones, and storm surges. For
example, on an average during the period 1962-1988, Bangladesh lost about 0.5
million tones of rice annually as a result of floods that accounts for nearly 30% of the country's average annual
food grain imports (Paul and Rashid 1993)..
|
Bhutan
|
Water Resources
The
availability of water in Bhutan is heavily dependent on heavy rainfall,
glaciers or snow, land use practices, and user demand. A reduction in the
average flow of snow-fed rivers, combined with an increase in peak flows and
sediment yield, would have major impacts on hydropower generation, urban
water supply, and agriculture. An increase in rainfall intensity may increase
run-off, enhance soil erosion, and accelerate sedimentation in the existing
water supplies or reservoirs.
Agriculture
In
Bhutan upland crop production, practiced close to the margins of viable
production, can be highly sensitive to variations in climate. A temperature increase
of 2 ºC would shift the cultivating zone further into higher elevation.
Climate
change is expected to increase the severity and frequency of monsoonal storms
and flooding in the Himalayas, which could aggravate the occurrence of
landslides. In addition to the danger to life and property, some of the
generated sediments may be deposited in the agricultural lands or in
irrigation canals and streams, which will contribute to deterioration in crop
production and in the quality of agricultural lands (NEC 2000).
Extreme events
In
Bhutan, the entire northern upper land has glacier/snow-fed lakes in the
mountaintops. Increased temperature and greater seasonal variability in
precipitation will lead to accelerated recession of glaciers and result in
increase in the volume of these lakes (IPCC 1998).
|
India
|
Agriculture
Among
the cereals, wheat production potential in the sub-tropics is expected to be
affected the most, with significant declines anticipated in several regions
including South Asia (IIASA, 2002). For eg., wheat yields in central India
may drop by 2% in a pessimistic climate change scenario (GoI 2004).
Districts
in western Rajasthan, southern Gujarat, Madhya Pradesh, Maharashtra, northern
Karnataka, northern Andhra Pradesh, and southern Bihar are highly vulnerable
to climate change in the context of economic globalization. Numerous physical
(e.g. cropping patterns, crop diversification, and shifts to
drought-/salt-resistant varieties) and socio-economic (e.g. ownership of
assets, access to services, and infrastructural support) factors come into
play in enhancing or constraining the current capacity of farmers to cope
with adverse changes (TERI 2003)
Temperature
rise of 1.5 degree centigrade and 2 mm increase in precipitation could result
in a decline in rice yields by 3 to 15 %. Sorghum yields would be affected
and yields are predicted to vary from +18 to -22 % depending on a rise of 2
to 4 degree centigrade in temperatures and increase by 20 to 40 % of
precipitation. (IPCC 2001).
Water resources
Increased
glacial melt due to warming is predicted to affect river flows. Increased
warming might result in increased flows initially with reduced flows later as
the glacier disappears. Available records suggest that Gangotri glacier is
retreating by about 30 m yr-1. A warming is likely to increase melting far
more rapidly than accumulation. As reported in IPCC (1998), glacial melt is
expected to increase under changed climate conditions, which would lead to
increased summer flows in glacier fed river systems for a few decades,
followed by a reduction in flow as the glaciers disappear.
Climate
change could impact the Indus River
basin. The total annual run-off from the upper basin is likely to increase by
11% to 16%. It estimated that although increased run-off could be
advantageous for water supply and hydropower production it could aggravate
problems of flooding, waterlogging, and salinity in the upper basin. Also,
even with an overall water surplus, shortages might occur in local areas of
the highly productive Punjab rice–wheat zone and in the unglaciated valleys
of the upper basin.
According
to United Nations projections, India is estimated to experience water stress
by 2025, and is likely to cross the 'water scarce' benchmark by the year 2050
under the high growth scenario. Water stress and scarcity are defined as
situations where per capita annual water availability is less than 1700 m3
and 1000 m3 respectively.
|
|
Human Health
Changes
in climate may alter the distribution of important vector species (for
example, mosquitoes) and may increase the spread of disease to new areas that
lack a strong public health infrastructure. High altitude populations that
fall outside areas of stable endemic malaria transmission may be particularly
vulnerable to increases in malaria, due to climate warming. The seasonal
transmission and distribution of many other diseases transmitted by
mosquitoes (dengue, yellow fever) and by ticks (Lyme disease, tick-borne
encephalitis), may also be affected by climate change (GoI 2004).
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Maldives
|
Water
Resources
The
population of Maldives mainly depends on groundwater and rainwater as a
source of freshwater. Both of these sources of water are vulnerable to
changes in the climate and sea level rise.
With
the islands of the Maldives being low-lying, the rise in sea levels is likely
to force saltwater into the freshwater lens. The groundwater is recharged
through rainfall. Although the amount of rainfall is predicted to increase
under an enhanced climatic regime, the spatial and temporal distribution in
rainfall pattern is not clear (Ministry of Environment and Construction
2005).
Ecosystem and Biodiversity
Studies
show that the corals are very sensitive to changes in sea surface
temperature. Unusually high sea surface temperatures in 1998 had caused mass
bleaching on coral reefs in the central regions of the Maldives. If the
observed global temperature trend continues, there would be a threat to the
survival of the coral reefs in the Maldives (Ministry of Environment and
Construction 2005).
Extreme Events
Over
80% of the land area in the Maldives is less than 1 m above mean sea level.
Being so low-lying, the islands of the Maldives are very vulnerable to
inundation and beach erosion. Presently, 50% of all inhabited islands and 45%
of tourist resorts face varying degrees of beach erosion. Coastal
infrastructure is also highly vulnerable to the impacts of sea level rise and
extreme events. Given the geophysical characteristics of the islands and the
population pressure, all human settlements, industry and vital infrastructure
lie close to the shoreline.
Human Health
Although
malaria has been eradicated from the Maldives, climate change is likely to
induce a threat of malaria outbreaks. Poor sanitation in the islands of
Maldives alongwith conducive environment for the spread of diseases might
lead to the outbreak of water related and waterborne diseases such as
diarrhoea (Ministry of Environment and Construction 2005).
|
Nepal
|
Water Resources
Studies
reported in Nepal’s initial national communication indicate no major changes
in the hydrological behaviour due to rise in temperatures. However, changes
in precipitation are expected to have major impacts. es in Nepal are
categorised as dangerous due to threat to glacier lake outburst floods
(GLOFs) (WWF 2005). As highlighted by IPCC (2001), glacial melt is expected
to increase under changed climate conditions, which would lead to increased
summer flows in some river systems for a few decades, followed by a reduction
in flow as the glaciers disappear.
Agriculture
Soil
loss is a major cause of decline in agriculture production in Nepal and the
negative effects of climate change may further aggravate this situation. The
impact of rise in temperatures on wheat and maize are expected to be
negative.
Extreme Events
In
Nepal, DHM (2004) found that almost 20% of the present glaciated area above
5000 m altitude is likely to be snow and glacier free with an increase of air
temperature by 1° C. Similarly, a rise in 3° C and 4° C temperatures would result in the loss of 58
to 70 % of snow and glaciated areas with threat of GLOFs.
Human Health
Studies
carried out in Nepal indicate the risk of malaria, kalaazar and Japanese
encephalitis under different climate change scenarios. The subtropical and
warm temperate regions are predicted to be particularly vulnerable to malaria
and kalaazar.
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Pakistan
|
Agriculture
In
the hot climate of Pakistan, cereal crops are already at the margin of
stress. An increase of 2.5oC in average temperature would translate into much
higher ambient temperatures in the wheat planting and growing stages. Higher
temperatures are likely to result in decline in yields, mainly due to the
shortening of the crop life cycle especially the grain filling period. The
National Communication (MoE 2003) highlighted that crops like wheat, cotton,
mango, and sugarcane would be more sensitive to increase in temperatures
compared to rice.
The
flow of Indus river basin is also likely to effect the cotton production in
Pakistan, which might be detrimental
to the economy as it is the main cash crop of the country.
Extreme Events
Pakistan
comparatively is less vulnerable to changes in sea level but for the port
city of Karachi. Karachi’s greatest vulnerability to climate change may come
from increased monsoonal and tidal activity, resulting in periodic flooding.
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Sri Lanka
|
Water Resources
Studies indicate
that much of the water from heavy rainfall events in Sri Lanka would be lost
as run-off to the sea.
Agriculture
Extreme
events of rise in temperature and changes in rainfall patterns will have
adverse impacts on agricultural production in Sri Lanka. Most cropping
activities for e.g., coarse grain, legumes, vegetables, and potato are likely
to be affected adversely due to the impacts of climate change. The highest
negative impact is estimated for coarse grains and coconut production. An
increase in the frequency of droughts and extreme rainfall events could
result in a decline in tea yield, which would be the greatest in regions
below 600 meters (Wijeratne 1996). With the tea industry in Sri Lanka being a
major source of foreign exchange and a significant source of income for
labourers the impacts are likely to be grave.
Extreme Events
Significant
erosion is already evident on many of Sri Lanka’s beaches. This is likely to
increase significantly with accelerated sea level rise. A rise in sea level
would tend to cause a shoreline recession except where this trend is balanced
by the influx of sediment. In a 30 cm sea level rise scenario, the study
projects a possible shoreline recession of about 30 m and for a 100 cm
scenario, the shoreline retreat is expected to be about 100 m. A one metre rise in sea level could drown
most of the coastal wetlands in Sri Lanka.
Human Health
In
Sri Lanka, expansion and shift in malarial transmission zones is expected.
Areas bordering the non-endemic wet zone of the country are likely to become
highly vulnerable to malaria (MENR 2000).
|
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