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Climate geo-engineering tactics, ranked by cost, risk, awfulness

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Last fall, scientist and provocateur David Keith offered one of the most conversation-provoking TEDTalks ever — calmly discussing ideas for geo-engineering our climate that border on shocking (like shooting a cloud of sulphurous particles into the stratosphere to simulate the cooling effects of a major volcanic eruption). It’s a scary subject, but as Keith pointed []

Geo-engineering to slow global warming: David Keith on TED.com

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Environmental scientist David Keith talks about a cheap, effective, shocking solution to climate change: What if we injected a huge cloud of particles into the atmosphere, to deflect sunlight and heat? As an emergency measure to slow a melting ice cap, it could work. Keith discusses why geo-engineering like this is a good idea, why []

TED Salon: Further reading

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Some selected source material and references from Wednesday night’s TED Salon: David Keith (pictured, left) showed a New York Times editorial on the coming climate change — from May 24, 1953: How Industry May Change ClimateThe amount of carbon dioxide in the air will double by the year 2080 and raise the temperature an average []

Quotes from the TED Salon

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Last night in Manhattan, TED hosted its 2007 Salon, called “Hot Science: Radical Ideas to Combat the Climate Crisis.” A detailed roundup is coming later today — but first, a few quotes from last night: The first speaker, Michael Oppenheimer, began by saying: “I’m the depressing, immobilizing part of the talk.” He went on to []