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The promise of geoengineering is placing average global temperature under human control, and is thus considered a powerful instrument for the international community to deal with global warming. While great energy has been devoted to learning more about the natural systems that it would affect, questions of political nature have received far less consideration. Taking as a given that regional effects will be asymmetric, the nations of the world will only give their consent to deploying this technology if they can be given assurances of a fair compensation mechanism, something like an insurance policy. The question of compensation reveals that the politics of geoengineering are far more difficult than the technical aspects.
Source: Brookings
