[Global Warming Fact of the Day] http://phys.org/news/2014-05-drought-portends-futu...

John Irving posted in Global Warming Fact of the Day John Irving 1:54pm May 1 http://phys.org/news/2014-05-drought-portends-future-midwest-crop.html US corn yields are increasingly vulnerable to hot, dry weather, study shows phys.org Corn yields in the central United States have become more sensitive to drought conditions in the pas... View Post on Facebook · Edit Email Settings · Reply to this email to add a comment.