Earth

  1. Earth

    Cleaner air may have brought more storms

    Pollution during the 20th century appears to have suppressed North Atlantic hurricanes.

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  2. Earth

    Satellite captures Earth’s greenery

    Orbiting camera detects reflected light to determine the extent of the planet's vegetation.

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  3. Life

    Primitive fish could nod but not shake its head

    Ancient fossils reveal surprises about early vertebrate necks, abdominal muscles.

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  4. Climate

    Southwest’s monsoon season may heat up with the climate

    Warmer temperatures may bring stronger rainy seasons over the long term, study finds.

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  5. Life

    Invasive frogs may spread deadly amphibian fungus

    African clawed frogs imported for 20th century pregnancy tests apparently communicate B. dendrobatidis to native species.

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  6. Oceans

    Glacier melt causes large fraction of sea level rise

    From 2003 to 2009, thawing ice nearly as large a contributor to oceans as massive sheets at poles, researchers find in new analysis.

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  7. Earth

    Groundwater isolated for eons

    At least 1.5 billion years after it last saw the surface, flowing liquid may host life.

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  8. Climate

    Warming may not release Arctic carbon

    Element could stay locked in soil, 20-year study suggests.

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  9. Climate

    Carbon dioxide in atmosphere reaches landmark level

    At 400 parts per million, greenhouse gas concentration is now higher than it has been for millions of years.

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  10. Earth

    Japan’s 2011 earthquake upped Tokyo’s risk

    Chance more than doubled that capital city will soon experience big temblor, researchers calculate.

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  11. Earth

    The Arctic was once warmer, covered by trees

    Pliocene epoch featured greenhouse gas levels similar to today's but with higher average temperatures.

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  12. Climate

    Ice loss from Greenland’s glaciers may level off

    Simulation suggests long-term effect on sea level not as dire as some predictions.

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