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Stories for "David Keith"


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

Posted By Emily McManus

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

Posted By Tedstaff

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

Posted By Tedstaff

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 […]


Notes from the TED Salon: "Hot Science: Radical Ideas to Combat the Climate Crisis"

Posted By June Cohen

Last night in New York City, 250 TEDsters gathered to hear some radical proposals for outsmarting climate change. It’s a fact: Atmospheric carbon dioxide levels are rising, and with them the possibility of severe climate change within our lifetimes. Increasingly, scientists are considering extreme measures that can quickly suck CO2 out of the atmosphere to […]


Quotes from the TED Salon

Posted By Tedstaff

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 […]