Some scientists worry that studying how to shade the Earth from some of the sun’s heat is a slippery slope toward deployment of ‘solar radiation management’ without fully understanding the risks.
Spraying aerosols and sucking carbon out of the air would bring down temperatures, yes. But the unintended consequences of geoengineering could be enormous.
The world seems incapable of taking decisive action on climate change but we may soon have to consider some bizarre options to stop global warming if we fail to act.
