Reuters: Climate change could push the cost of U.S. allergies and asthma beyond the current $32 billion annual price tag, conservation and health groups reported on Wednesday. A warming planet makes for longer growing seasons that would produce more allergy-provoking pollen in much of the heavily populated eastern two-thirds of the United States, the National Wildlife Federation and the Asthma and Allergy Foundation of America said in their report. The cost of coping with allergies and …