Mercury News: With last-minute deals and some old-fashioned political muscle, Speaker Nancy Pelosi is pushing hard to get a comprehensive energy and climate change bill through the House by the end of the week. To get the bill passed, Pelosi and Rep. Henry Waxman have made concessions to agriculture, the biofuel industry and even oil refineries on emissions controls and rules. That has angered some environmentalists, who say the compromises weaken the bill and it won’t do enough to reduce …