Before The Flood

http://channel.nationalgeographic.com/before-the-flood/videos/before-the-flood/?utm_source=Facebook&utm_medium=Social&utm_content=link_fb20161102ngc-btffull&utm_campaign=Content&sf40835397=1

Join Leonardo DiCaprio on a journey around the world, speaking to scientists and world leaders about the dramatic effects of climate change. #BeforeTheFlood