Earth Science

Scientists find evidence of "rain-making" bacteria

WASHINGTON, Feb. 29 - A team of scientists from the United States and France have found evidence that rain-making bacteria are widely distributed in the atmosphere.

These biological particles could factor heavily into the precipitation cycle, affecting climate, agricultural productivity and even global warming. The new finding is published in the journal Science on Friday.

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Expert: Arctic polar cap may disappear this summer

The polar cap in the Arctic may well disappear this summer due to the global warming, Dr. Olav Orheim, head of the Norwegian International Polar Year Secretariat, said on Friday.

The shrinking of the Arctic ice cap has been astonishing, Orheim said in an interview with Xinhua. "Ice sheet hit the

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