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5 December 2013 11:26 am ,
Vol. 342 ,
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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ScienceShot: Can Haze Turn the Climate Tide?
4 April 2012 1:17 pm
Decades-long swings in the temperature of the North Atlantic Ocean are known to influence everything from surges in hurricane activity to drought in the African Sahel. Scientists have attributed those temperature swings to natural oscillations in the strength of the ocean currents that bring warmth from the south. But a group of climate scientists argues today in Nature that the waxing and waning of atmospheric hazes—tiny particles belched by everything from smokestacks to volcanoes—over the North Atlantic drove ocean temperature changes there. Hazes (seen over the U.S. mid-Atlantic, above) work by varying the amount of sunlight they block from the ocean surface. Older climate models can't duplicate the effect, the group says, but a new-generation model can. If hazes do in fact drive most North Atlantic temperature swings, long-range climate forecasters would have to get into the far hazier business of predicting volcanic eruptions and pollution trends.
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