Reuters: The U.S. regulator that oversees futures markets, such as the New York Mercantile Exchange, would also have jurisdiction over the trading of new derivative contracts based on carbon emissions, under a new bill introduced in the House of Representatives. The bill, sponsored by Representative Bart Stupak, comes as the House Energy and Commerce Committee aims to pass next week separate legislation that would cut U.S. carbon emissions linked to global warming and require companies to have …