GreenBiz.com: As the U.S. House Energy and Commerce Committee wrestles over the draft climate change legislation proposed by Reps. Henry Waxman (D-Calif.) and Edward Markey (D-Mass.), a new study has been released suggesting the feared economic toll may be lighter than some predict. Energy intensive manufacturing interests in the U.S., such as cement, paper, chemical and steel, would take a modest hit if a greenhouse gas cap-and-trade system, similar to the framework proposed in Waxman-Markey bill, …