Earth

  1. Climate

    Plumes of arctic haze traced to Russia, Kazakhstan

    Smoke from forest fires, agricultural burning may be substantial part of springtime plumes.

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  2. Chemistry

    Supergoo Erases ‘Monument-al’ Nuclear Fallout

    From disposable diapers comes a technology that can be used to extract radionuclides off of the porous surfaces of buildings.

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  3. Climate

    Winter birds shift north

    More than 170 common North American species are wintering farther north than they did in the past.

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  4. Ecosystems

    Flowering plants welcome other life

    When angiosperms diversified 100 million years ago, they opened new niches for ants, plants and frogs.

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  5. Earth

    California may yet get the first greenhouse gas limits for cars

    President Obama decides to revisit a controversial decision made less than a year ago by his predecessor.

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  6. Humans

    Federal R&D downturn preceded ‘08 economic crash

    Federal R&D spending looks grim — until you compare it to the U.S. economy in general.

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  7. 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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  8. 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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  9. 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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  10. Earth

    The Solar System’s Big Bang

    Finding signs of a lost beginning.

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  11. 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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  12. 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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