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New York Extends Comment Period on Fracking

By Edward McAllister NEW YORK (Reuters) - New York's environmental body on Wednesday extended a public comment period on proposed rules for natural gas drilling in the state, frustrating companies eager to exploit its rich natural gas deposits. [More]

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New Research Examines Role of Clouds in Climate Change

New findings published Tuesday appear to undermine a controversial study - oft-cited by those who downplay the human impacts of climate change - that claimed variations in cloud cover are driving temperature changes across the globe. The analysis confirms - as most atmospheric scientists have long held - that the reverse is true: Clouds change in response to temperature changes.

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Trees Pull Nitrogen from Rocks and Microbes

Nitrogen-rich forest bedrock -- the geologic rock formation located under forest soil -- may aid trees in better sequestering carbon, according to a recent study that offers a new understanding on why some forests store greenhouse gases more efficiently than others. While geologic rock isn't a carbon sink itself, it plays an important role in helping the soil and trees above absorb CO 2 , say the study's authors, who published their findings last week in Nature . But a lack of research on nitrogen has left it largely ignored by climate scientists and policymakers scrambling to identify carbon sinks that mitigate carbon dioxide pollution from large emitters.

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Witness: Arctic Ice Breaks Up as Polar Bears Stalk Ship

By Gerard Wynn 500 MILES FROM THE NORTH POLE (Reuters) - Stepping onto an Arctic ice floe on Monday, an unusually mild, easterly breeze blew at the end of the annual summer melt. The footprints of two polar bears from the night before were disintegrating in a dusting of snow.

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Experts Drill Arctic Ice to Fathom Speed of Melt

By Gerard Wynn and Stuart McDill 500 MILES OFF THE NORTH POLE (Reuters) - As polar bears stalked their ship, scientists drilled into the Arctic sea ice this week to try and figure out why it's disappearing so fast. [More]

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Commemorative Calculus: How an Algorithm Helped Arrange the Names on the 9/11 Memorial

At first glance--and even after deep scrutiny--the names on a new memorial to those killed on September 11, 2001, seem randomly arrayed. The names are not arranged alphabetically nor, for the most part, are they presented in labeled groups. But the memorial's layout is anything but random

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Use It Better: The Smart Ways to Pick Passwords

If you want to be absolutely secure, you should make up a different password for every single Web site you visit. Each password should have at least 16 characters, and it should contain a scramble of letters, numbers, and punctuation; it should contain no recognizable words.

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Yellowing Eyes May Keep Seniors Awake

Aging is not for the squeamish: skin sags, joints ache and hearing might start to go. And many seniors have trouble sleeping, which can lead to other health problems.

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