Our first guest is an unlikely "fractivist"…Lou Allstadt is a longtime former Executive Vice President of Mobil Oil and he shares the roots of his post-career activism and what led him to write an angry open letter to Exxon head Rex Tillerson.
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