20 September 2012 – Cambridge University professor Peter Wadhams has called for urgent considerations of new ideas, including geoengineering, to reduce global temperatures, as Artic ice approaches final collapse and releases trapped methane gasses.

Writing in The Guardian, Professor Wadhams, a leading leading ice expert, predicts the final collapse of Arctic sea ice in summer months within four years.

Climate change is no longer something we can aim to do something about in a few decades’ time, and that we must not only urgently reduce CO2 emissions but must urgently examine other ways of slowing global warming, such as the various geoengineering ideas that have been put forward,” he says.

“These include reflecting the sun’s rays back into space, making clouds whiter and seeding the ocean with minerals to absorb more CO2.”

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