Global warming will cut crop harvests by 2% each decade, researchers say

Research have shown that crops as wheat, corn and rice are exposed to an important 2% yielding decreasing every decade, due to the climate change with the temperatures increasing in 2°C to 2050, the most affected zones are the tropics, with crops like wheat and corn that have experienced falls until 40%. As a solution, the government had agreed to limit the temperatures increasing over the pre-industrial levels, because this can bring danger to the food security.

http://www.theguardian.com/world/2014/mar/19/global-warming-will-cut-crop-harvests-by-2-each-decade-researchers-say