TED Talks

Stewart Brand: 4 environmental 'heresies'

TV-PG
2009 • E124    Jul 13, 2009    17m
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.

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