Ideas worth spreading

4 environmental 'heresies'

848,472 views |

Stewart Brand |

TED@State

• June 2009

The man who helped usher in the environmental movement in the 1960s and '70s has been rethinking his positions on cities, nuclear power, genetic modification and geo-engineering. This talk at the US State Department is a foretaste of his major new book, sure to provoke widespread debate.

The man who helped usher in the environmental movement in the 1960s and '70s has been rethinking his positions on cities, nuclear power, genetic modification and geo-engineering. This talk at the US State Department is a foretaste of his major new book, sure to provoke widespread debate.

This talk was presented at an official TED conference. TED's editors chose to feature it for you.

About the speaker

Environmentalist, futurist

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Since the counterculture '60s, Stewart Brand has been creating our internet-worked world. Now, with biotech accelerating four times faster than digital technology, Stewart Brand has a bold new plan ...

This talk was presented at an official TED conference. TED's editors chose to feature it for you.