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Analyses of Geoengineering approaches to date have been mainly conceptual and focused primarily on physical aspects. A number of approaches for reducing incoming solar radiation have been described in papers; also, some proposals for increasing CO2 removal from the atmosphere and a few other approac
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1. Can Geoengineering Work?A Research & Development Program to Determine the Possibilities Michael C. MacCracken Chief Scientist for Climate Change Programs Climate Institute Washington DC