Land-cover map of the Arctic covering 1500 km north to south to understand how thawing permafrost is changing the landscape. The map has been generated using information from the Copernicus Sentinel-1 and Sentinel-2 missions. Tones of yellow and beige show sparse vegetation, greens show tundra, purples show forest and reds show areas that have been disturbed by flooding or forest fires. Vegetation patterns alter snow re-distribution and therefore heat transfer in winter and fires can trigger permafrost thaw.