If diplomacy fails, there is always the fantastic Plan B
18 Dec 2009
Just five years ago, anyone who talked of easing Earth's climate crisis by fertilising the seas with iron, scattering particles in the stratosphere to reflect sunlight or building a sunshade in space courted ridicule.
But today with little hope held for a binding climate change agreement coming from the Copenhagen summit, such advocates - "geo-engineers" - are getting a respectable hearing.
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