Distribution

The polar type of climate and vegetation is found mainly north of the Arctic Circle in the northern hemisphere. The ice-cap is confined to Greenland and to the highlands of these high- latitude regions, where the ground is permanently snow-covered. The lowlands, with a few months ice-free, have tundra vegetation. They include the coastal strip of Greenland, the barren grounds of northern Canada and Alaska and the Arctic seaboard of Eurasia.