Chapter Four-Climate Resilient Villages for Sustainable Food Security in Tropical India: Concept, Process, Technologies, Institutions, and Impacts

Type Journal Article - Advances in Agronomy
Title Chapter Four-Climate Resilient Villages for Sustainable Food Security in Tropical India: Concept, Process, Technologies, Institutions, and Impacts
Author(s)
Volume 140
Publication (Day/Month/Year) 2016
Page numbers 101-214
URL http://www.sciencedirect.com/science/article/pii/S0065211316300797
Abstract
The world population is expected to increase by a further three billion by 2050 and 90% of the three billion will be from developing countries that rely on existing land, water, and ecology for food and well-being of human kind. The Intergovernmental Panel on Climate Change (IPCC) in its fifth assessment report (AR5) stated that warming of the climate system is unequivocal and is more pronounced since the 1950s. The atmosphere and oceans have warmed, the amounts of snow and ice have diminished, and sea level has risen. Each of the last three decades has been successively warmer at the earth's surface than any preceding decade since 1850 and the globally averaged combined land and ocean surface temperature data as calculated by a linear trend show a warming of 0.85°C (0.65–1.06°C) over the period of 1880–2012. World Meteorological Organization (WMO) ranked 2015 as the hottest year on record.

Climate change poses many challenges to growth and development in South Asia. The Indian agriculture production system faces the daunting task of feeding 17.5% of the global population with only 2.4% of land and 4% of water resources at its disposal. India is more vulnerable to climate change in view of the dependence of huge population on agriculture, excessive pressure on natural resources, and relatively weak coping mechanisms. The warming trend in India over the past 100 years has indicated an increase of 0.6°C, which is likely to impact many crops, negatively impacting food and livelihood security of millions of farmers. There are already evidences of negative impacts on yield of wheat and paddy in some parts of India due to increased temperature, water stress, and reduction in number of rainy days. Significant negative impacts have been projected under medium-term (2020–39) climate change scenario, for example, yield reduction by 4.5–9%, depending on the magnitude and distribution of warming. Since agriculture currently contributes about 15% of India's gross domestic product (GDP), a negative impact on production implies cost of climate change to roughly range from 0.7% to 1.35% of GDP per year.

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