We also speak with another leader in the climate movement–Michael Brune. The Executive Director of The Sierra Club joins us with his thoughts on where we need to go next.
Betsy talks with Al Gore about An Inconvenient Truth
Bernie Sanders on legislative leadership for Climate Change
Top Climate Leader Bill McKibben on grassroots change
Scientist Katharine Hayhoe on her book Climate for Change
John Kerry and Theresa Heinz: This Moment on Earth
Dr. Jeffrey Sachs speaks about the economic cost of climate change