A sprawling conversation with R. Buckminster Fuller including his great aunt Margaret Fuller, future communication, the nature of work, human nature, and physics.

Biologist, natural historian, and author David Attenborough discusses his book and upcoming television series “Life on Earth.” The book, show, and this interview focus on discussing the evolution of life.

Physicist and renewable energy activist Amory Lovins discusses areas of focus for renewable energy, including at-home utility usage and agriculture. Lovins also discusses his two books “Soft Energy Paths: Toward a Durable Peace” and “Energy Unbound: A Fable for America’s Future.” Studs plays "Whose Garden Was This" - Tom Paxton (1970).

The Rocky Mountain Institute is a nonprofit organization working to foster the efficient and restorative use of natural resources.

At the conclusion of this interview, Dr. Paul Ehrlich predicts that 5 to 6,000 people will have died of starvation. "The Population Bomb," covers why women should stop having children and why the government should pass out $500 every year to women who don't have kids.*Please note: some sections have been edited out from the original recording due to copyright considerations 

Oria and Iain Douglas-Hamilton discuss their lives among the elephants at Lake Manyara National Park in Tanzania. They talk about the elephant life-cycle and the elephant social behavior. The two also discuss conservation and preservation of elephants across Africa.

Dr. Alan Solem, a malacologist, and Dr. John Engle, a bryologist, from the Field Museum discuss a research trip they plan to take to Australia. The two doctors also discuss climate and ecology in the Americas and in Australia. Dr. Solem will be researching land snails and Dr. Engel moss and liverworts.