New York Times: Sen. Lisa Murkowski has built a reputation in her eight years in Washington as a moderate Republican willing to engage with Democrats and environmentalists in the climate change debate. But Murkowski, who last year took on a much higher profile in the GOP leadership, is now at the center of a storm by pushing to strip U.S. EPA of its ability to regulate for greenhouse gas emissions. Murkowski insists that her efforts — which could come to a head on the Senate floor as early as …