climate zones:

Cold Zone

Temperate Zone

Subtropic Zone

Tropical Zone

Mountains - Valleys

Cold Zone: >Polarday- Polarnight      >Polar light      >Glaciers

Area	60° to 90° North and South latitude
sun path	53° about horizon (Polar day) till under horizon (Polar night)
Average temperature	-47 to 0°
minimal temperature	-89°C (Antarktis)
maximal temperature	+25°C (Tundra)
radiation	negative
daylenght	0 to 24 hours (Polar night respectively  Polar day).
Precipitation	variable, mostly in the form of snow
Climate	Ice climate (Average temperature of warmest  month is below 0°C), and - tundra climate (Average temperature of warmest  month between 0 und 10°C).
Vegetation	Polar area: spare  Tundra: moss, lichens, grass, boreal forest with conifer wood
property	hostile to life, Polarlights

The polar regions are the coldest regions on earth, situated between the poles and the respective polar circles*). The are also called 'eternal ice'. The northern polar circle includes the Arctis*), which includes the Northern polar sea *). The Southern  polar circle includes the Antarctis, mainly consisting of the continent Antarctica *).

The special attribute of the Polar regions is the climate with much snow and ice , as well as the polar day with the midnight sun *) , which last almost half a year at the poles, and the polar night, furthermore the polar lights. 

Some areas  in the polar circle have substantially warmer climate: in Norway, the west coast is warmed by the gulf stream*) have a yearly average temperature of 4-6°C which is 5-15°C higher than that of comparable places on 60 to 65°N latitude in other parts of the polar region.