Reuters: The prospect of U.S. regulation of climate-warming carbon dioxide has sparked a pre-emptive outcry from the Chamber of Commerce, which warned of bureaucratic gridlock if proposed limits are put in place. In a report to be released on Tuesday, the pro-business organization projected such regulation would affect more than 1 million U.S. businesses and create such a regulatory backlog that it could stall economic development. But a former Environmental Protection Agency attorney …