Implications of Climate Change for U.S. Agriculture

摘要: General circulation models of global climate predict that a doubling current atmospheric concentrations carbon dioxide (CO{sub 2}) or its equivalent in CO{sub 2} and other greenhouse gases, will increase average surface temperatures 1.5{degrees}C to 4.5{degrees}C alter precipitation patterns. The is expected occur fifty one hundred years (Intergovernmental Panel on Climate Change). There is, however, vast scientific uncertainty about all aspects these predictions, especially concerning regional changes temperature precipitation. Whatever may turn out be, it certain they have ramifications for world U.S. agriculture. Farm-level productivity, resource use, profitability be affected, as food supply, trade, prices, comparative advantage, agricultural policy. kinds ultimate extend impacts depend the magnitude change climatic variables, accompanying indirect environmental effects, how well society able adapt changes. In this paper, we examine issues affecting agriculture review research results date potential impacts. 12 refs.