| Yeah it's mentioned in Stephen Hawking's last book: https://en.m.wikipedia.org/wiki/Stratospheric_aerosol_inject... “The Intergovernmental Panel on Climate Change concludes that it is the most-researched solar geoengineering method, with high agreement that it could limit warming to below 1.5 °C” There’s a risk it’d affect the ozone layer. But Paul Crutzen, who won the Nobel Prize for his ozone research in 95, said the sulfur plan is “the only option available to rapidly reduce temp rises and counteract other climactic effects”. We’d also need to add shockingly little SO2 to the stratosphere. We currently emit 200m tons per year (25% is humans, rest is volcanos and other natural sources). We’d need to add an extra 100k per year. Edit: I think one of the Microsoft co-founders was looking into it, the problems of proving it would work were political - not engineering-related. |