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Global Climate Change: Could Geoengineering Reverse It?

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Uploaded on Feb 14, 2008

Roger Angel, Regents' Professor of Astronomy gave two issues for his talk. One he called taking our foot off the accelerator - how we should cut back on our use of fossil fuel and the importance of not adding to the problem of global warming. Second was: can we design some brakes in case we need them which entails global engineering to cool the planet. November 21, 2006.

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