Earth

  1. Earth

    Animal ancestors may have survived ‘snowball Earth’

    Chemical fossils in Precambrian sedimentary rock push back the first date for animal life.

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  2. Humans

    On Science & the Fearsome OMB

    President Obama has directed federal budget masters to put public interests first when they review proposed regulations.

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  3. Chemistry

    Nonstick chemicals linked to infertility

    Featured blog: Infertility doubled in women who had high concentrations of commercially produced nonstick chemicals polluting their blood.

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  4. Earth

    The Solar System’s Big Bang

    Finding signs of a lost beginning.

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  5. Earth

    ‘Science fraud’ alleged in urban lead incident

    Virginia engineer charges data were buried or manipulated to hide the lead-poisoning implications to children of water contamination in the nation's capital.

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  6. Earth

    Toxic Lead: Watch Out for Schools

    Schools may present the "worst case" for encountering lead-tainted water, an engineer reports finding.

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  7. Earth

    Water-cleanup experiment caused lead poisoning

    Featured blog: Lead concentrations spiked in many children living in the nation's capital after the local water authority altered the treatment used to disinfect drinking water.

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  8. Health & Medicine

    Overly Hungry for Frogs

    Frogs are shipped half-way round the world to sate human appetites for this lean white meat.

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  9. Earth

    Oldest zircon fine-tunes history of moon’s formation

    Mineral bit provides clues about when our cosmic companion formed its crust.

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  10. Ecosystems

    Pacific Northwest salmon poisoning killer whales

    A protected population of resident orcas around Vancouver Island and Puget Sound is the planet’s most PCB-contaminated mammals, says one researcher.

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  11. Earth

    EPA: Music to My Ears

    Obama's pick for EPA administrator pledges to put science first.

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  12. Humans

    Life expectancy up when cities clean the air

    Study shows people live longer after fine-particulate air pollution is reduced.

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