Greenland's magestic moulins get rouged
Greenland’s ice sheet is melting faster than at any point in the past 400 years, and that makes rivers of meltwater gush across the surface. The meltwater is working its way down through the ice sheet, causing deep shafts known as moulins. In order to map out the meltwater’s route, scientists use a fluorescent red dye that is harmless to the environment. The meltwater probably functions as lubrication, making the ice skid faster across the bedrock, so more ice ends up in the sea in the form of icebergs.