What an honor to celebrate Earth Day with Michael Mann (find him on Twitter and read his book!), one of the world’s leading climate scientists, and have him come on the show and share his wisdom with me and the audience.

This is truly a compelling show with perhaps the most urgent challenge of our time.  What I love about Michael is that for all of his brilliance, he makes these very complex issues very relatable.

We also touch on all kinds of other fascinating issues here like films, culture, the Gaia theory and life on other planets.

Michael Mann is an American climatologist and geophysicist currently director of the Earth System Science Center at Pennsylvania State University, who has contributed to the scientific understanding of historic climate change based on the temperature record of the past thousand years. He has pioneered techniques to find patterns in past climate change, and to isolate climate signals from noisy data.

Also check out our show with Paul Hawken.