Warmer Arctic harms crops in U.S., Canada: study

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BBE9LFP.img?h=100&w=100&m=6&q=60&o=f&l=fExceptionally warm years in the Arctic have provoked extra-cold winters and springs further to the south, decreasing crop yields across central Canada and the United States, researchers said Monday.

أكثر... (http://www.msn.com/en-ca/news/world/warmer-arctic-harms-crops-in-us-canada-study/ar-BBE9Ejr?srcref=rss)