Worth noting that aerosol-based methods of geoengineering are several orders of magnitude cheaper. V. different side effects & politics tho
How feasible is it to mitigate climate change by putting a sunshade at a Lagrange point? http://www.pnas.org/content/103/46/17184.full …pic.twitter.com/t1DtcgDmLy
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No - these solutions can be done unilaterally. Indeed, that may be a bigger concern. Eg, aerosols could be deployed by one billionaire.
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The aerosols could even be deployed in secret, which might make for a nice plot point. Or imagine the strife over a sun shade...
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Especially since the effects are uneven. Eg aerosols won't uniformly decrease temp, but will have diff effects in diff places
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My understanding is that it could be done today, relatively easily and cheaply, with the right aerosols.
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Building enough solar+ storage for current world usage might actually be cheaper (and is definitely cheaper if you account for power sales!)
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