Arctic desert

Experts have several ways of categorizing deserts, but most will agree on some version of the following 4 classifications: hot and dry, semiarid, coastal, and cold.

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Quick facts, basic science, and information about snow, ice, and why the cryosphere matters The cryosphere includes all of the snow and ice-covered regions across the planet.

Polar bear tracks across the icy snow ~ Baffin Island, Canada. Sue Flood

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Antarctica is a place of unbelievable wonder and mystery. Of the seven continents it’s the most recently discovered, the least hospitable, the least inhabited and the least explored. It’s also, as you're about to learn, one of the most fascinating places in the world. 10. It Gets Bigger -- Way Bigger Antarctica’s sea ice is expanding in some regions and decreasing in others. Wind affects what happens in different areas -- for example, northward winds blow massive chunks of ice away from the…

GENEVA: The gradual acidification of the subarctic region of the Pacific ocean, is causing a significant increase in the production of nitrous oxide, an ozone-depleting greenhouse gas, according to a study. The researchers, including those from the Swiss Federal Institute of Technology Lausanne (EPFL) in Switzerland, studied the production of nitrous oxide near the Hokkaido and the Kuril Islands — disputed territories between Japan and Russia in the northern Pacific ocean. The rising levels…

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Science: North Pole Unfrozen as Temperature Soars

Snow covered tussocks in the tundra landscape north of coldfoot, Alaska in the Brooks Range.

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