conservation

Part 1 of a lecture by physicist Albert Bartlett on the exponential function and its consequences for population growth, resource use and energy. It argues that steady growth rates quickly lead to enormous quantities.

Mycologist Paul Stamets presents six ways mycelium and fungi could help save the world, in an 18-minute TED talk. Topics include environmental cleanup and other applications of fungi.

George Carlin's stand-up routine arguing the planet will be fine and it is people who are in trouble. It mocks the idea of saving the planet.

Researcher Kamal Meattle describes how an arrangement of three common houseplants placed in specific spots can measurably clean the air in a home or office. It is a short TED talk based on his work in a plant-filled building.

A clip from BBC's Last Chance to See in which Stephen Fry and Mark Carwardine meet Sirocco, a kakapo, who famously tries to mate with Carwardine's head. The kakapo is a critically endangered flightless New Zealand parrot.