As Exelon becomes the latest energy firm to quit the business group over its anti-climate legislation stance, pressure mounts on Nike to follow suit
Pacific Gas and Electric tears up its membership after recent Chamber of Commerce moves to put climate science "on trial"
US energy giant quits coal lobby group embroiled in anti-Waxman-markey bill forged letters scandal
Head of US watchdog says agency is poised to formally adopt controversial " endangerment finding"
Business group calls for public hearing on evidence for man-made climate change as it seeks to undermine proposed carbon legislation