Reuters: Senator Lindsey Graham said on Tuesday a proposed economy-wide cap-and-trade system for reducing emissions of carbon dioxide and other greenhouse gases was dead and would be replaced in a new bill. Graham, a Republican, did not specify whether cap-and-trade might be used to control emissions in just one sector, such as utility companies, instead of earlier efforts for an economy-wide mechanism. “The cap-and-trade bills in the House and Senate are dead. The concept of …