Even as Congress was mandating large increases in the consumption of biofuels a decade ago, the world was changing. In the early 2000s, replacing fossil fuels with biofuels made from corn, sugar, or oilseeds seemed like a good idea. Increased crop demand would prop up prices for farmers, and replacing petroleum with renewable energy would reduce greenhouse gas (GHG) emissions and promote energy independence.
Global Warming and Agriculture: New Country Estimates Show Developing Countries Face Declines in Agriculture Productivity
This CGD Brief, based on Global Warming and Agriculture: Impact Estimates by Country, by senior fellow William Cline, explores the implications of global warming for world agriculture, with special attention to China, India, Brazil, and the poor countries of the tropical belt in Africa and Latin America. The brief shows that the long-term effects on world agriculture will be substantially negative: India could see a drop in agricultural productivity of 30 to 40 percent; China's south central region would be in jeopardy; and the United States may see reductions of 25 to 35 percent in the southeast and the southwestern plains.