Watch Racing Extinction (2015). Scientists predict we may lose half the species on the planet by the end of the century. They believe we have entered the sixth major....

Watch Chasing Ice (2012). 'National Geographic' photographer James Balog was once a skeptic about climate change. But through his Extreme Ice Survey, he discovers undeniable evidence of our changing....

Watch The Cove (2009). Richard O'Barry was the man who captured and trained the dolphins for the television show Flipper (1964). O'Barry's view of cetaceans in captivity changed from....