Satellite study of sea ice began in 1979, and became a much more reliable measure of ice melt and polar climate change.
22.
Melting of the Arctic Ocean was already predicted in 1953, when military leaders viewed polar climate change as a national security concern.
23.
Parts of southeastern Norway including parts of Mj�sa have warm-summer humid continental climates ( tundra / alpine / polar climate ( ET ).
24.
The cold climate of the alpine tundra is caused by the lack of greenhouse effect at high altitude, and is similar to polar climate.
25.
He and his colleagues have unearthed new polar dinosaurs as well as obtained insights into the ancient polar climate during one of Earth's greenhouse modes.
26.
In 1963, the construction of a gas pipeline Taas Tumus Berge Yakutsk Mokhsogollokh began the first in the world on permafrost and in a sub-polar climate.
27.
The traditional approach to Arctic exploration had relied on large-scale forces, with a presumption that European techniques could be successfully transplanted into the hostile polar climate.
28.
Owing to its location north of the Arctic Circle, Barrow's climate is cold and dry, classified as a polar climate ( K�ppen " ET " ).
29.
It is most pronounced in high altitude and latitude areas and is especially associated with subpolar maritime and polar climates but occurs wherever freeze-thaw cycles are present.
30.
In temperate or polar climates the dry season is due to the inability of the plant to absorb water available by to be in the form of ice.
