Exxon Mobil Corporation has quit the American Legislative Exchange Council (ALEC) after a disagreement with the business group over climate change. This is a positive step. But it must not stop there. We urge Exxon management to cancel its memberships in any and all industry groups that deny the scientific consensus on climate change or advocate against meaningful climate action. And we encourage Exxon to accelerate its efforts to combat climate change and lead the energy industry toward a fossil-free future.