Maybe. Continued growth in greenhouse gas emissions is a condition for the Chinese Communists' hold on power, but climate disruption in response to emissions growth threatens to destabilise it. Geoengineering has immediate appeal as a way out of this catch-22. Read more
Spraying sulphate aerosols could mask warming and cool the planet within weeks, although it would not solve the core problem of too much carbon dioxide in the atmosphere and oceans.