Climate Change And Subsistence Farming

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2.2 Climate Change and Subsistence Farming Climate change has the potential to transform food production, especially the patterns and productivity of crops, livestock, and fishery systems; and to reconfigure food distribution, markets, and access (Nelson et al., 2009). Chen et al. (2012) observed that climate change has already had a negative impact on Asia through extreme temperatures, frequent flooding and droughts, sea level rise, and increased salinity of water supplies for rainfed agricultural areas. Most Asian countries are quite dependent on their domestic supplies of rice. The International Rice Commission (2003) indicates that Bangladesh, China, India, Indonesia, and Vietnam are the major producers of rice, producing more than 70% of the world’s volume. The Asian rice-producing countries tend to consume most of their domestic rice production. Nevertheless, Thailand and Vietnam are able to export some rice to neighboring countries such as Bangladesh, Indonesia, and the Philippines. Dasgupta et al. (2009) identified ten developing countries whose land areas are most exposed to the potential threat of a one-meter rise in sea level. Among the countries most affected by sea level rise are Bangladesh, China, Taiwan, and Vietnam and these are all rice-growing and rice-consuming countries. Using a partial equilibrium global rice trade model, Chen et al. (2012) investigated the potential impact of sea level rise combined with climate-induced crop yield change on global rice
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