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David Keith's unusual climate change idea
About this film
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?
Directors & creators
TED.com
Subjects
TEDTalks, TED, Talks, business, china, climate change, engineering, global issues, science, technology, TEDSalon 2007 Hot Science, 2007
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