Earth

  1. Climate

    Warmest year on record

    Last year's worldwide average temperature was the highest ever recorded by scientists.

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  2. Environment

    Plant gas

    Trees, grasses, and other plants may produce the greenhouse gas methane.

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  3. Environment

    Out in the cold

    With pollution, over-fishing, and shrinking habitats, the life of a penguin isn't getting any easier.

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  4. Physics

    Earth’s lowly rumble

    From rumbling volcanoes to grumbling elephants, scientists are eavesdropping on the lowest sounds on Earth.

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  5. Environment

    Forests as a tsunami shield

    Trees appear to protect seaside settlements from the worst effects of a tsunami.

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  6. Earth

    Detecting an eerie sea glow

    At night, glowing bacteria can give large areas of the sea a surreal milky color.

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  7. Environment

    Unnatural disasters

    The actions of people can make the destruction caused by hurricanes worse than it would be otherwise.

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  8. Environment

    Shrinking glaciers

    Most glaciers around the world appear to be getting smaller.

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  9. Environment

    Seabirds deliver Arctic pollutants

    When birds look for food at sea, they pick up and carry pollutants back to their nesting areas.

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  10. Environment

    Cleaning up fish farms

    Although fish farms can supply lots of food, these operations may also cause pollution and hurt wild populations.

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  11. Environment

    Saving wetlands

    In Louisiana and elsewhere, wetlands are disappearing, threatening plant and animal life.

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  12. Environment

    Whale watch

    Unraveling the secret lives of whales may help keep them from dying out.

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