TED Talks

Stewart Brand: 4 environmental 'heresies' (2009x124)

Exibido em:: Jul 13, 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.