Opposition to abortion helped Donald Trump win the presidential election in 2016. Now that the same position could be a political liability, will Trump's position evolve again?
Nearly a third of China's urban population lives in areas that are subsiding, according to a sweeping national survey of 82 major Chinese cities. In coastal areas, that makes sea level rise worse.
Fast Food Nation author Eric Schlosser says mergers and acquisitions have created food oligopolies that are inefficient, barely regulated and sometimes dangerous. His new documentary is Food, Inc. 2.