Introduction
Climate change is one of humanity’s greatest
challenges, affecting both current and future generations. Without urgent and
concerted action, it will damage fragile ecosystems, impede development
efforts, increase risks to public health, frustrate poverty alleviation
programs, and force large-scale migration from water or food-scarce regions.
The environmental, economic, and social costs of inaction will far exceed the
cost of taking immediate steps to address climate change.
Climate is usually defined as the
"average weather" in a place. It includes patterns of temperature,
precipitation (rain or snow), humidity, wind and seasons. Climate patterns play
a fundamental role in shaping natural ecosystems, and the human economies and cultures
that depend on them. But the climate we’ve come to expect is not what it used
to be, because the past is no longer a reliable predictor of the future. Our
climate is rapidly changing with disruptive impacts, and that change is
progressing faster than any seen in the last years.
Conceptualisation
of terms
Climate change is approached by dealing with the three sides
from which the danger comes which are global warming, increasing climate
variability, meteorological and climatology extreme events. According to
African Journal of Food, Agriculture, Nutrition and Development (2006) these
are the three panels of this triptych review. The second panel starts with a
compelling review of the present situation of food security, referring to
African examples to improve the situation. Then the influence is discussed that
the El Niño Southern Oscillation (ENSO) has an increasing climate variability
as a consequence of climate change. It is indicated that, to date, climate
models have been developed with little knowledge of agricultural systems
dynamics. On the other hand one can illustrate that agricultural policy
analysis has been conducted with little knowledge of climate dynamics.
Climate change,
can be referred to as global warming, according to Conway (2010), this is the
rise in average surface temperatures on Earth. An overwhelming scientific
consensus maintains that climate change is due primarily to the human use of
fossil fuels, which releases carbon dioxide and other greenhouse gases into the
air. The gases trap heat within the atmosphere, which can have a range of
effects on ecosystems, including rising sea levels, severe weather events, and
droughts that render landscapes more susceptible to wildfires. The
International Fund for Agricultural Development (IFAD) acknowledges climate
change as one of the factors affecting rural poverty and as one of the
challenges it needs to be addressed. While climate change is a global
phenomenon, its negative impacts are more severely felt by poor people in
developing countries who rely heavily on the natural resource base for their
livelihoods. Rural poor communities rely greatly for their survival on
agriculture and livestock keeping that are amongst the most climate-sensitive
economic sectors.
Impact of climate change
As a direct consequence of capricious behaviour of
particularly rainfall in West Africa, the adaptation of its farmers has lagged
behind enormously. This statement is valid for most farmers in sub-Saharan
Africa. Within the climate science community there is an emerging effort to
make findings more suitable for decision making, but as yet there is little
consensus as to how data may be relied upon for decision making. Then a lot of
attention is paid to how response farming, that is thoroughly defined, can play
an important role in coping with the consequences of climate variability.
Response farming is often limited envisaging rainfall events, but coping with
weather and climate disasters as well as using windows of weather and climate
opportunities are other forms of responding to weather and climate realities.
Services such as advice on design rules on above and below ground micro-climate
management or manipulation, with respect to any appreciable microclimatic
improvement: shading, wind protection, mulching, other surface modification,
drying, storage, frost protection belong to such “response farming” agro
meteorological services. Ideally, to get optimal preparations, farmers get
advisories/services through extension intermediaries.
How farmers in Africa
are surviving with the phenomenon of climate change
To
survive the consequences of climate change farmers in Africa have adopted measures
to reduce climate change. According to Conant and Paustian (2002), in Ghana, the traditional and local
authorities identified clearing of riparian vegetation as a major factor
increasing soil erosion and siltation of rivers, which eventually reduces
stream flow, and they are adopting measures to remedy the situation. The
measures include creating awareness of the effects of deforestation around
water bodies, sensitizing the communities about prevention of bush fires,
promoting community-based management of forests and imposing fines on those who
indiscriminately set fire to the forests, clear riparian vegetation or violate
other measures to protect the environment. However, According to Cohen et al (2002)
these efforts by the traditional authorities are not yielding notable results
because the communities, although still rural in terms of development and
infrastructure, have become more cosmopolitan or heterogeneous and no longer
adhere as absolutely to traditional authority as they did in the past. The
communal nature of the communities is breaking down; people now tend to be more
concerned with individual than with collective well-being.
In
addition, most farmers recognized the importance of having trees on their farms
to shade their crops from intense sunshine. However growing trees had little
appeal to them because they had had negative experiences with timber companies
and illegal chainsaw loggers trampling their crops. Sustained awareness
programmes are needed to inform rural farmers of their rights and to empower
them to protect their farms and most importantly to plant more trees. Ghana Environmental
Protection Agency (2000) argues that responses to climate
change include adaptation to reduce the vulnerability of people and ecosystems
to climatic changes which is all activities that help people and ecosystems
reduce their vulnerability to the adverse impacts of climate change and
minimize the costs of natural disasters. There is no one-size-fits-all solution
for adaptation and mitigation, to reduce the magnitude of climate change impact
in the long term. According to Werf, (2008), mitigation activities are designed
to reduce the sources and enhance the sinks of greenhouse gases in order to
limit the negative effects of climate change.
Also,
in Africa farmers are adapting to this constraint by planting different or
various crops. According to Brooks (2006), crops that thrive well under the
current prevailing conditions are increasingly being planted in areas that
previously did not support their cultivation. For example in Kenya, there is a shift from cocoa
cultivation to drought-resistant crops such as cassava. Vegetable growers are
also gradually moving into the river plains where their crops can get more
water. These are forms of adaptation techniques but are obviously not
sustainable. Cocoa crops, for example, were previously a major source of income
for the upkeep of the farmers’ families, for the purchase of agricultural
inputs and for expansion of their farms. The clearing of riparian vegetation
and the use of agricultural chemicals close to the rivers and streams create
hazards for the environment and ultimately for the people of the region.
Farmers in Africa have
developed several strategies to adapt to this phenomenon. One is to re-use
water, for example from washing clothes or utensils, to irrigate backyard gardens
and nurseries. Households are also rationing water, trying to reduce the water
use per person per day. However, the practice is abandoned as soon as the rains
begin. This strategy needs to be part of a behavioral change and not applied
only during periods of water shortage. Also according to, Nicholas (2009), most
communities are actively reviving rainwater harvesting, a traditional way
(Indigenous Knowledge Systems) of collecting and storing rainwater in big
barrels placed under the roofs of houses. This practice had largely been
abandoned when the communities installed wells and boreholes, but has attracted
interest again as a result of their drying up. However most of the communities
covered in the study reported that they are unable to harvest enough rainfall
under the current climate.
There is use of media to adopt climate change, the 'Climate Change Adaptation in Africa (CCAA) is also
funding research into using the media to enhance climate change adaptation.
According to Human Development Report 2007, one project, led by the African
Radio Drama Association, will commence in Nigeria, where there is a need to
produce and disseminate information that will help smallholder farmers adapt
their farming methods. For example in Nigeria
Radio broadcasts produced locally in two local Nigerian languages, with scripts
available in English and French informing smallholder farmers of climate change
adaptation measures and strengthen their capacity to mitigate the impact on
their livelihoods.
In Africa farmers had started crop diversification
and seeding small businesses so as to survive the consequences
of climate change. They are also producing income that is not linked to the
rain cycles. According to Windfuhr et al (2008), In Kenya, one-thousand-dollar loans were made to groups of women who
have started small businesses for example an egg hatchery, a paraffin shop and
even a small lending bank. The bank's loans helped families pay for emergency
health care and food purchases during the drought. Bals-Christoph et al. (2008)
argues that it is a way of diversification, so people are not just relying on
farm income for survival.
Furthermore, there is also an arid lands program
that takes root. According to Bohnenberger and Burck, (2011) in
2006, a group of non-governmental organizations, funded by a grant from the Global Environment Facility, Norway and the
Netherlands implemented the measures that would alleviate today's current
climate stresses. They also recruited people who work with Kenya's World
Bank-funded arid lands program, to help. Since then, farming practices there
have changed dramatically. According to the UNEP, (2006), due to this programme
Agricultural Extension Officers now offer seasonal and locally relevant climate
predictions explained in simple terms in the regional tribal language. They are
now producing a handbook to translate weather predictions into practical advice
about what and when to plant. For example, if rains are not plentiful, there
are seeds with a 90-day growing cycle that might survive where higher-yielding
130-day varieties would not. The project has also helped farmers set up a seed
bank. A group of about 40 men will collect, process and preserve the best local
seeds and loan them out again during the next planting season, slowly selecting
them for the best climate-adapted varieties. Now, farmers can circumvent the
expensive seed market, where they can't even tell if they are getting the seed
varieties they are paying for. A total reliance on maize also is a big part of
the current problems. More often now farmers are hedging their bets.
Increasingly, they are diversifying their crops by planting more
drought-tolerant grains, peas and beans.
In a nutshell, climate change affects
all countries in the world. Extreme weather conditions like drought and floods
have become more intense and more frequent, with far reaching destructive
effects on the livelihoods of people, especially those in developing countries
and more so those in climate sensitive economic activities like agriculture.
All categories of agricultural workers are therefore affected. But however
farmers in Africa had come up with several strategies to survive the
consequences of climate change, these include growing of drought resistance
crops, Crop diversification
and seeding small businesses and water reuse just to mention a few.
References
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People
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