Recovered Arctic expert predicts final collapse of sea ice withi
Prof Peter Wadhams calls for “urgent” consideration of new ideas to reduce global temperatures. Photograph: John Mcconnico/AP One of the world's leading ice experts has predicted the final collapse of Arctic sea ice in summer months within four years. In what he calls a "global disaster" now unfolding in northern latitudes as the sea area that freezes and melts each year shrinks to its lowest extent ever recorded, Prof Peter Wadhams of Cambridge University calls for "urgent" consideration of new ideas to reduce global temperatures. In an email to the Guardian he says: "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." These include reflecting the sun's rays back into space, making clouds whiter and seeding the ocean with minerals to absorb more CO2.