Earth

  1. Health & Medicine

    Year in review: Risks of e-cigarettes emerge

    Electronic cigarettes dispense water vapor laced with flavors and often a hefty dose of nicotine. These vapors may be far from benign, studies in 2014 suggested.

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  2. Earth

    Year in review: Life thrives under Antarctica

    Thousands of microbe species thrive in Lake Whillans deep beneath the West Antarctic ice sheet.

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  3. Climate

    Year in review: Climate warnings heat up

    Climate change is here and the world is unprepared, scientists and policy makers declared multiple times in 2014.

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  4. Environment

    Year in review: Microbes exploit their killer

    Triclosan, an unregulated antimicrobial chemical found in consumer products, may aid, rather than deter, microbes that invade people’s bodies.

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  5. Earth

    Mega volcanism indicted in dinosaur demise

    Precision dating strengthens idea that climate-altering Deccan volcanism contributed to dinosaur extinction.

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  6. Earth

    Mineralogy’s link to ecology makes an Earth twin unlikely

    Earth’s unique blend of minerals emerged with the evolution of life, making it extremely unlikely that another planet has Earth’s exact mineral composition.

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  7. Climate

    California drought worst in at least 1,200 years

    The current California drought is the most severe in 1,200 years, according to historical information gleaned from tree rings.

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  8. Climate

    Resilience protects corals from hurricanes — and climate change

    Coral reefs have evolved to be resilient in the face of hurricanes that can devastate human populations. But climate change is reducing the ability of reefs to bounce back from disaster.

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  9. Environment

    Black carbon fouls New York subway stations

    Black carbon, a respiratory irritant, fouls air in New York subway stations.

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  10. Climate

    Greenhouse gases may spell wet future for Africa

    Greenhouse gases played a role in boosting rainfall in Africa 14,000 to 21,000 years ago, a finding that may help predict future abundance of water on the continent.

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  11. Earth

    Feedback

    Readers comment on changing bird populations, question the usefulness of a new medical test and discuss the interesting physics behind rainbows.

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  12. Planetary Science

    Preparing for disaster, celebrating success

    Science cannot prevent all disasters or solve all the problems they spawn, but it can point to the best ways to prepare, making disasters less damaging than they might otherwise be

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