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Climate change may be especially unpleasant for coffee addicts, according to Starbucks. Jim Hanna, the company's sustainability director, says bean farmers are already seeing the effects of climate change in the form of changing rainfall patterns, new pests, and severe weather. “What we are really seeing as a company as we look 10, 20, 30 years down the road—if conditions continue as they are—is a potentially significant risk to our supply chain," says Hanna. Starbucks, according to Hanna, has been pushing Congress and the Obama administration to act on climate change, but without success. Recently the International Center for Tropical Agriculture warned it would be too hot to grow chocolate in the Ivory Coast and Ghana—the world's largest producers—by 2050.