Can sheep save the glaciers? Swiss scientists put wool to the test
Can sheep save the glaciers? Swiss scientists put wool to the test <br> As Switzerland struggles to contain the shrinking of its glaciers, researchers are conducting an unusual experiment in the Alps to see whether one of its less valued natural resources can help: sheep's wool. For ‌years now, synthetic tarpaulins have been laid in summer over areas of ice and snow to reflect sunlight and reduce heat absorption as global warming melts away the ice sheets that have defined the high Alpine landscape for millennia. But those tarpaulins are typically made from plastic and can shed polluting microfibres. The "Keep It Wool" project, led by the environmental group Summit Foundation and the University of Lausanne, is instead using wool to slow the melting of the Tsanfleuron Glacier in western Switzerland. This summer's record heat has melted snow on the glaciers weeks earlier than usual, leading almost inevitably...