Warning Signs of Tipping Point for Greenland Ice Sheet May 27, 2021• Physics 14, 80 A stability analysis of the ice sheet covering a large area of Greenland suggests that the ice melting may be approaching a point of no return. Copernicus Sentinel data, processed by ESA Satellite image of the Jakobshavn Glacier—the fastest retreating glacier in Greenland. The analysis of melt rates in the last 150 years indicates the glacier might be approaching a tipping point. Copernicus Sentinel data, processed by ESA Satellite image of the Jakobshavn Glacier—the fastest retreating glacier in Greenland. The analysis of melt rates in the last 150 years indicates the glacier might be approaching a tipping point.×