COP21: The UN Climate Change Conference in Paris

In the weeks leading up to the biggest climate conference since the Kyoto Protocol was signed in 1998, the President & CEO of Al Gore's non-profit tells us what we can expect this December when all nations of the world meet to set new global emission reduction standards - PLUS how you can help with the climate change crisis. Guest:Ken Berlin, President & CEO, The Climate Reality Project, Washington, D.C.