Word: polarizer
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...atmosphere absorbs ultraviolet radiation from the sun (reflected off the earth) as heat. This is called the Greenhouse Effect. It was important in the evolution of the earth into a life-supporting planet. The world is getting hotter and hotter. When it gets hot enough, the polar ice caps will start to melt. This will raise the level of the oceans 300 feet. This will cover the land on which two-thirds of the world's people live. Many people know about this problem. They also know they can't do anything about...
...Humble Oil & Refining Co., which had launched the $40 million venture, seemed determined not only to prove that the Northwest Passage could be tamed, but also that it could be tamed in style. Even as the 1,005-ft. ship rammed through 40-ft. polar packs, it moved smoothly. In their specially fitted cabins above the waterline, newsmen and other visitors barely heard the deep throb of the Manhattan's huge 43,000-h.p. engines...
Once free, the Manhattan set off to make history by attempting to plow through McClure Strait, the unpenetrated gateway to the relatively open water of the Beaufort Sea. The ship churned through 120 miles of ice before encountering a series of polar ridges and a field of thickly compressed ice. Again the call went out to the Macdonald: "Would you please come along our flanks and nibble some...
...harsh but strangely lovely land, home mainly to the grizzly, polar bear, wolverine, caribou, fox, Dall sheep and countless geese and ducks. Mushy and mosquito-plagued in summer, the North Slope area of Alaska is so cold in winter that metals become brittle and men work at a fraction of their normal efficiency. Yet, during the past year, a 140-mile-wide strip of this inhospitable country bordering the Beaufort Sea was the scene of frantic activity as more than a dozen big oil companies conducted seismic tests and drilled exploratory holes in preparation for Alaska's "Great...
...Clouds. Other scientists also had some second thoughts about their Mars findings. Originally, the temperature of the southern polar cap was reported as -180°F., or roughly the frost point of carbon dioxide under Martian atmospheric pressure. Now, the scientists say that the temperature is probably about four degrees lower and the atmospheric pressure several millibars higher than first estimated. That would mean that the pole is not solid carbon dioxide, as scientists once speculated. Instead, it is possibly composed of a mixture of carbon dioxide and ordinary ice, and perhaps obscured by a cloud of dry-ice particles...