Earth

  1. Chemistry

    Idling jets pollute more than thought

    Oily droplets emitted by planes operating at low power can turn into potentially toxic airborne particles.

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  2. Life

    Animals quickly colonized freshwater

    Fossilized worm burrows show that life had moved beyond the oceans by 530 million years ago.

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  3. Earth

    Earth/Environment

    So much for the man-sized snail, plus Indonesia’s quake risk, overheated reefs and more in this week’s news.

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  4. Life

    Fungus strikes but doesn’t kill European bats

    Organism that is devastating North American populations might have coevolved with hosts overseas.

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  5. Earth

    Warming dents corn and wheat yields

    Rising temperatures have decreased global grain production and may be partly responsible for food price increases.

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  6. Life

    Giant ants once roamed Wyoming

    The first complete fossil found in North America suggests warm spells in the far north allowed big insects to spread.

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  7. Earth

    Earth/Environment

    How Antarctica got its ice, plus Chinese dust-ups and rising bird malaria in this week’s news.

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  8. Earth

    Grand Canyon born by continental lift

    A "drip" deep within the Earth may have raised the Colorado plateau to create the spectacular landscape of the U.S. Southwest.

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  9. Earth

    With warming, Arctic is losing ground

    Scientists anticipate big ecosystem changes as erosion spills nutrients into the sea

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  10. Earth

    Currents reach deep for seafloor larvae

    Surface waters circulate more than a mile down, transporting organisms between distant ocean-bottom habitats.

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  11. Life

    Antarctic humpbacks make a krill killing

    Late-arriving sea ice enhances crustacean feast for whales, but the bounty may be fleeting.

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  12. Earth

    Volcanic ash gets its close-up

    Last year’s eruption in Iceland spit out supersharp and potentially harmful particles, nanoscale images show.

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