During the Bush administration, not a single piece of legislation to combat global warming was signed into law. As a result, the US lagged behind most other industrialized nations in curbing carbon emissions. But just this week we’ve seen major breakthroughs, with the EPA finally acknowledging that greenhouse gases pose a threat to human health. Robert F. Kennedy, Jr. talks about the changing tide, and whether or not we’ll be seeing the US take on a more prominent leadership role in the climate change arena with Congressman Ed Markey.

RFK, Jr. and Rep. Ed Markey Discuss the Climate Bill: Part 1Part 2