The U.S. Chamber of Commerce has-how to put this-not been a friend of environmental legislation or regulation. The Chamber-which represents more than 3 million U.S. businesses-spent millions to lead the successful fight against carbon cap-and-trade legislation, along with health care reform and most of President Obama’s other legislative goals. It remains an implacable opponent of EPA environmental regulations-of greenhouse gases or just about anything else, arguing that they raise costs and hurt job creation.