As the planet warms, the Arctic is feeling the heat. Trees and shrubs are taking hold on what was once tundra, like this young pine and surrounding shrubs in Norway’s Arctic Finnmark.

A new international study of the satellite record of greening landscape shows that the places which were firmly Arctic in climate during the mid-20th century are now transforming into evergreen forest lands. If the trend continues, by the end of this century northern Sweden could get the temperatures more common to southern France and northernmost Canada could be more like Montana.