…"It's very clear now that a changing climate will have a profound effect on agriculture," says Molly Brown, a geographer at the University of Maryland…[B]ig multinational companies can see it, because they buy shiploads of farm products from all over the world…[F]or example, Mars Inc...[a] key ingredient in the company's…products…is chocolate. This comes from cocoa trees, most of them in West Africa, where the climate is hot and humid. But Parkin says it may not stay that way…Mars is looking for ways to help those farmers get through this. The strategy…is to help those farmers become more productive. Mars is providing better cocoa trees, fertilizer and training…Mars has cut its emissions of…gases by 25 percent…It's planning to be carbon neutral…by 2040…Mars will also have representatives at the global talks in Paris, lobbying for an agreement to put the brakes on a warming climate…[Also refers to General Mills, Nestle, and Unilever.]