Once we start geohacking, we won't be able to stop

Desperate times call for desperate measures, which is why geoengineering could save the world from the catastrophic effects of climate change. But a new study suggests that once we get started we won't be able to stop — and that a sudden halt to our geoengineering efforts could be worse than never doing it in the… » 11/28/13 12:30pm 11/28/13 12:30pm