Spraying seawater into clouds to cool the planet would reduce the chances of reaching most major climate “tipping points”, but would also increase the risk of East Antarctic glacier collapse and a shift in the West African monsoon.
That’s according to a study by Haruki Hirasawa at the University of Victoria, Canada, and his colleagues, which modelled the effects of marine cloud brightening (MCB), a form of geoengineering that has been proposed to counteract global warming. …