We're heading into risky geo-engineering territory

With global warming nearing the tipping point, scientists are looking for ways out.

 

Geo-engineering might involve putting sulphur dioxide into the atmosphere (to reflect some incoming sunlight), spraying fine droplets of seawater into low-lying marine clouds to thicken them up (and reflect more sunlight), or painting the world’s roads and roofs white.
Gwynne Dyer
Published: Monday, 06/20/2011 12:00 am EDT

‘We are getting into very risky territory,” said Christiana Figueres, head of the UN Framework Convention on Climate Change, last week. But she acknowledged that we may have to go there anyway.

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