Word: caldeira
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Dates: during 2000-2009
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Levitt and Dubner included in their book input from Ken Caldeira, an ecologist at Stanford University who has made no secret of his research into the possible effectiveness of geoengineering schemes - even as many of his colleagues have shied away from the subject, partly out of concern that it would wrongly convince people that there is a cheaper way to counter global warming. Since SuperFreakonomics was published, however, Caldeira has claimed that Levitt and Dubner mischaracterized his views. He says he's in favor of researching geoengineering in order to gauge its effectiveness and its potential side effects...
...Paul Crutzen published an editorial examining the possibility of releasing vast amounts of sulfurous debris into the atmosphere to create a haze that would keep the planet cool. "Over the past couple of years, it's gone from an outsider thing to something that is increasingly discussed," says Ken Caldeira of the Carnegie Institution for Science at Stanford University...
...Caldeira modeled the effects on climate that Crutzen's notion of spreading sulfur particles into the air would have and found that geoengineering might be able to compensate for a doubling of the concentration of carbon dioxide in the atmosphere. Even more impressive was the price tag: somewhere between a few hundred million dollars and a couple of billion dollars a year, compared with the unknowable cost of decarbonizing the entire world. But the drawbacks are serious. Worsening air pollution is a risk. We'd have to keep geoengineering indefinitely to balance out continued greenhouse-gas emissions, and the motivation...
...There is a question of scale, if what we’re trying to do is protect a bay then it is likely feasible, but as you start moving up to the Barrier Reef and ocean, the amounts of mass handling is enormous,” said Ken Caldeira, a global ecology researcher at Stanford...
...immediate lesson is not to take a chainsaw to all of Alaska. “Clear-cutting mountains to slow climate change is, of course, nuts,” wrote Ken Caldeira, a scientist at the Carnegie Institution and one of the study’s authors, in a January op-ed in The New York Times. Slowing global warming while destroying ecosystems is poor policy, he says. But so is blindly planting trees...