The warming Arctic


Image taken by Sentinel-2, an ESA satellite. Coordinates 82.0N, 18.7W.

Images taken by Landsat 8, a collaboration between NASA and the USGS. Coordinates 82.3N, 18.4W.

The water off the north coast of Greenland is normally frozen, even during summer months. That's because it's the oldest and thickest ice in the Arctic. And now it's melting, due to warm winds and a heatwave fueled by climate change. Above, a historical survey of satellite imagery of ice off Greenland's north coast demonstrates the change in how much ice breaks up each year.

Caroline Binley