Bloomberg: The biggest global warming battle youve never heard of kicks off in Dubai this weekend.
Climate negotiators from across the globe will gather in the Persian Gulf city to debate how to get rid of hydrofluorocarbons -- a class of hundreds of artificial chemicals used in refrigerators, air-conditioners, fire suppressants and other widely used products. While less common than greenhouse gases like carbon dioxide or methane, HFCs can be thousands of times more potent, pound for pound, at heating up...