TED Talks

David Keith: A surprising idea for solving "climate change"

TV-PG
2007 • E142    Nov 15, 2007    16m
Environmental scientist David Keith proposes a cheap, effective, shocking means to address climate change: What if we injected a huge cloud of ash into the atmosphere to deflect sunlight and heat?

Where to Watch TED Talks - 2007 • E142

 

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