Ilulissat Icefjord in Greenland, where the Sermeq Kujalleq glacier terminatesSean Gallup/GettyA team of scientists and engineers will head to Greenland next month to test fly drones in the Arctic, in the hope of pioneering a new low-cost surveillance system that will transform monitoring of ice sheets.Currently most data on the state of the Greenland ice sheet comes from satellite monitoring and crewed flights. Drones could provide a cheaper, more accurate solution, say researchers, unlocking near real-time monitoring of the rapidly melting feature.