Geoengineering seeks to combat climate change by removing carbon dioxide from the atmosphere or by increasing the reflectivity of the earth – with clouds or even space dust – to reduce the sun’s warmth.
It is criticised by many environmental activists, including Naomi Klein, for suggesting that a simple techno-fix for global warming is just around the corner but geoengineering may have a more sinister side.
Alan Robock, who studied the potential impact of a nuclear winter in the 1980s, raised alarm over CIA’s part-funding of a National Academy of Sciences report on different approaches to combating climate change, and the fact that the CIA hasn’t explained its interest in geoengineering....
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