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

Discussing and reading from the book "The mismeasure of man" with the author Stephen Jay Gould.

Discussing the book "Margaret Mead and Samoa the making and unmaking of an anthropological myth" with the author Derek Freeman.

Interviewing astronomer David Schramm.

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.

According to Barry Commoner's book, "Making Peace with the Planet," we, as the human species, are in and are witnessing a war between the ecosphere and the technosphere. Commoner explains that today's cars emit a lot of smog into the big cities. Trucks move consumer goods from place to place, using four times more fuel than trains. Everyone should ask themselves what is their interest in the quality of the environment and that of nature.

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).

Discussing the book "The legacy of Malthus" with the author Allen Chase.