For tonight's "Conversations with Great Minds" - Thom is joined by author, environmentalist, and activist Bill Mckibben. In 1988, he wrote "The End of Nature" - the heir to Rachel Carson's "Silent Spring" - and since then has gone on to write more than a dozen noteable books about the environment and our human impact on it. He is the co-founder and Chairman of the Board of the grassroots climate campaign 350.org, which has coordinated 15,000 rallies in 189 countries since 2009. In 2010, the Boston Globe called him "the nation's leading environmentalist" and Time magazine described him as "the world's best green journalist." And recently he was elected a fellow of the American Academy of Arts and Sciences. His latest book - "Earth: Making a Life on a Tough New Planet" - is a guide to living on our fundamentally altered planet.

Thom is joined by Jeff Shesol, author, Supreme Power: Franklin Roosevelt vs. the Supreme Court. He'll talk about how President Obama may be soon facing a crisis with the Supreme Court like one Franklin Roosevelt took on - and how it may play out. To watch this conversation again - as well as other Conversations with Great Minds - go to our website at www.conversationswithgreatminds.com

Bob Edgar joins Thom Hartmann tonight for Conversations with Great Minds. He has an extraordinary resume: author, pastor, former Congressman and CEO of the non-profit organization "Common Cause." We'll discuss his time in office and the issues he's now taking on of war, peace, and the corruption of the Supreme Court.

Tom Shadyac Joins Thom Hartmann. He has been a director - a producer - a screenwriter - an actor - and a comedian. His movies are some of the most widely-recognized films in the last few decades - from the "Ace Ventura: Pet Detective" series - to the "Nutty Professor" movies - to "Liar, Liar" and "Bruce Almighty." In his most recent film - "I am" he takes us on a journey in search of the nature of humanity - and what it means to live a truly fulfilling life on this planet - a topic we'll definitely get into. Currently - he is a professor of communications - and teaches screenwriting at Pepperdine Univeristy's Seaver college.

For tonight's Conversations with Great Minds - Thom Hartmann is joined by blogger - political commentator - and author Keli Goff. You've probably seen her on several television programs - offering up her political and cultural insight on CNN - MSNBC - Fox - and BET. And her writing has been featured in Time magazine - Cosmpolitan - and Essence - as well as the New York Times and USA Today. Her first book - "Party Crashing: How the Hip-Hop Generation Declared Political Independence" received critical acclaim documenting the rise of "Generation Obama." And her most recent book - out just this year - a fictional work entitled "The GQ Candidate" has been labeled a recommended summer read by the Los Angeles Times. Currently she is a contributing editor and columnist to "TheLoop21.com" - and a contributor to the Huffington Post

Global activist and former green jobs advisor to President Obama, Van Jones, Co-founder of RebuildTheDream.com joins Thom Hartmann for "Conversations with Great Minds"

Best-selling author and scientist Dr. Jared Diamond joins Thom Hartmann in Conversations with Great Minds. They'll discuss his world famous books, Guns, Germs and Steel & Collapse that shed light on how we as humans have evolved and how our societies succeed or fail.