Since the explosion on the Deepwater Horizon oil rig killed 11 workers and set off a gigantic environmental disaster, NewsHour journalists have hosted dozens of discussions and filed scores of stories to help shed light on the causes and fallout…

Anything dealing with climate change is bound to provoke an argument. And our story on Berkeley physicist Richard Muller's recent conversion to a believer in man-made global warming, which he made in an op-ed in the New York Times, certainly…