Earth

  1. Earth

    Where humans go, pepper virus follows

    Plant pathogen could help track waters polluted with human waste.

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  2. Climate

    Climate might be right for a deal

    The upcoming Copenhagen negotiations will take steps toward an international, climate-stabilizing treaty.

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  3. Earth

    Deep hole spotted on moon

    The feature may be a ‘skylight’ in an underground lava tube.

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  4. Health & Medicine

    PCBs hike blood pressure

    No one would choose to eat polychlorinated biphenyls, or PCBs — yet we unwittingly do. And a new study finds that the cost of their pervasive contamination of our food supply can be elevated blood pressure, a major risk factor for heart disease.

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  5. Earth

    Plastics ingredients could make a boy’s play less masculine

    Study links boys' fetal phthalate exposure to tendency toward gender-neutral play later on.

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  6. Humans

    Record chills are falling, but in number only

    Weather-monitoring stations in the Lower 48 have been logging record daily highs in temperature at twice the pace of record lows. Yet more evidence of climate warming. Many people have pointed to colder than normal winters — or summers — as evidence that global warming is a myth. Climatologists have countered that weather, the meteorological features that we experience at any given hour or day, may show anomalies even as Earth’s overall climate warms. So weather can locally mask the planet’s overall slowly rising fever. Except that any such mask appears to be disappearing throughout most of the United States, according to a new study.

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  7. Earth

    Buried-lakes story wins top award

    Some readers may be unaware of our sister publication, Science News for Kids, a weekly online magazine for middle-school readers. This morning, we learned that one of the site’s feature stories — Where Rivers Run Uphill — won this year’s top science journalism award for reporting news for children.

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  8. Earth

    Asteroid impact could have stirred the ocean

    Model offers one explanation for sudden change in deep-ocean chemistry almost 2 billion years ago.

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  9. Climate

    Guarded optimism on Copenhagen climate talks

    Negotiators representing 181 nations completed their final prep work in Barcelona, Spain, last Friday, on a new climate treaty — one that they hope to build a month from now at a major conference in Copenhagen, Denmark. But at least one scientist worries that what comes out of the Copenhagen deliberations may not have sufficient coordination and strength to meet the challenges that Earth’s climate has begun throwing at us.

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  10. Health & Medicine

    Vinegar: Label lead-tainting data

    Under California’s Proposition 65 law, products containing chemicals that may cause cancer, birth defects or reproductive toxicity must carry a warning label at their point of sale. Among such products: pricy balsamic and red-wine vinegars that contain lead. At least some California groceries apparently have taken a conservative approach and post labels suggesting all such vinegars are dangerously tainted. Although they aren't.

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  11. Paleontology

    Pollination in the pre-flower-power era

    Scorpionflies with long-reaching mouthparts may have helped plants procreate long before blossoms evolved.

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  12. Earth

    Nanoparticles’ indirect threat to DNA

    Tiny metal nanoparticles can damage DNA, essentially by triggering toxic gossip.

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