"Neither Lynn Margulis nor I have ever proposed a teleological hypothesis. Nowhere in our writing do we express the id…"

"If there were a billion people living on the planet, we could do whatever we please. But there are nearly seven billi…"

"Curiously, aerosol pollution of the northern hemisphere reduces global warming by reflecting sunlight back to space. …"

"The climate and the chemical properties of the Earth now and throughout its history seem always to have been optimal …"

"In the current fashionable denigration of technology, it is easy to forget that nuclear fission is a natural process.…"

"Our planet... consists largely of lumps of fall-out from a star-sized hydrogen bomb...Within our bodies, no less than…"

"We have since defined Gaia as a complex entity involving the Earth's biosphere, atmosphere, oceans, and soil; the tot…"

"Life has to be a planetary phenomenon. You could no more have a partially occupied planet than you could half a cat o…"

"Life has to take charge of its environment and evolve with it."

"If you were an artist or novelist, or a poet or somebody like that, nobody would think it odd if you worked in your o…"