Word: slowes
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...mechanisms that could speed up the warming effects of greenhouse gases. Open ocean reflects less of the Sun's energy than ice does, so a large-scale summer melt would mean more absorption of heat in the ocean. The warmer ocean would heat the air above it, which would slow the refreezing of ice in winter, which would in turn become even more susceptible to melting in summer...
Exactly when a catastrophic melt might occur, however, is unpredictable. The long-term rise in global temperature as a result of greenhouse-gas emissions is overlaid with natural, year-to-year variability in all sorts of interconnected oceanic and atmospheric cycles that slow down warming down or speed it up temporarily. But because these variations tend to be cyclical, the "perfect storm" of conditions that caused the record 2007 melting - a situation Stroeve calls "unusual, but not unprecedented" - will probably return at some point. If they do, the Arctic could be primed for major, even irreversible, changes...
...night. Priklopil reinforced her sense of isolation by installing an intercom and a timer that turned the lights on and off at regular intervals so she wouldn't even have contact with him. She says she was tortured by the sounds of the wheezing ventilator and the slow, monotonous drip of the tap. (See the top 10 famous disappearances...
...long tracking shot at the start of the film, a feral cat prowls this wasteland until it is felled by a slow-motion arrow. The silent, heavily bearded archer moves on into a shack, where a man has hanged himself. The archer notices the dead man's boots and appropriates them. He cooks himself a meal - fillet of feline - and feeds a morsel of it to a stray rat. Back on the road, he is set upon by four highwaymen. Out comes his sword, and in an instant, they are decapitated, eviscerated, kaput. Later he sees another gang abusing...
...oils have one of the omega-3 fatties, alpha-linolenic acid (ALA). The bad news is that they don't contain docosahexaenoic acid (DHA) or eicosapentaenoic acid (EPA), the more important omega-3 nutrients. Our bodies can convert ALA into DHA and EPA, but the process is limited and slow. (See "The Year in Health 2009: From...