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Friday, March 29, 2013

CALL for ACTION: Climate Change Impacts in Asia`s Agriculture


Many people ask me about Climate Change, when they ask, they know it has something to do with pollution, car exhaust and changing weather. There is lot of information floating around this topic. 


Climate change projections and impact assessments are highly uncertain, not just because no model is currently able to accurately capture every complex socio - economic - ecological interaction and their future pathways under different mitigation scenarios, but also because of the uncertainty of the mitigation paths that will be pursued. Moreover, none of the current systems are comprehensive nor do they foster comparability or integration of data across sources.  Each national or international agency uses its own set of criteria to define its boundaries. It is important to note that assessing of climate change impacts needs to be analyzed at the more local level, incorporating country – specific characteristics.

Even if emissions from all sectors were reduced to zero, climate warming would continue for decades to come. In addition, climate change could become a significant constraint on economic development in developing countries that rely on agriculture for a substantial share of gross domestic production and employment. However, trying to understand the overall effect of climate change on different sectors can be difficult.

The aim of this blogpost is to highlight a significant impact on Asia`s agriculture and how it will influence agricultural production in the region.

Asia is the largest continent on Earth and spreads over four climatic zones (boreal, arid and semi-arid, tropical and temperate).  Land and ecosystems are being degraded, threatening to undermine food security.  The problem is expected to be severe in developing Asia where current information is poor, technological change has been slow, and the domestic economies depend heavily on agriculture.

More research is clearly needed to refine the estimates of impacts in this region and to identify potential adaptation options for farmers and governments.

Agriculture is extremely vulnerable to climate change: higher temperatures eventually reduce yields of desirable crops while encouraging weed and pest proliferation. Changes in precipitation patterns increase the likelihood of short - run crop failures and long - run production declines. Developing countries in Asia are likely to face the highest reductions in agricultural potential in the world due to climate change.  More than 60 % of the economically active population and their dependents – which amounts to 2.2 billion people – rely on agriculture for their livelihoods. Currently, a set of studies is underway in both Africa and Latin America to determine climate change impacts and adaptation opportunities in those regions. 


Therefore further empirical research needs to be done, in order to provide a more precise estimate to improve the accuracy of the analysis for Asia and what will happen to the region.



           

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