Earth

  1. Chemistry

    Holey Copper Pipes!

    Engineers are homing in on germs and other surprises behind the development of tiny holes in home water pipes.

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  2. Animals

    Farm chemicals can indirectly hammer frogs

    A widely used agricultural weed killer teams up with fertilizer to render frogs especially vulnerable to debilitating parasites.

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  3. Earth

    The Case for Very Hot Water

    Turning down the thermostat on a home's water heater could foster the growth of toxic bacteria in home plumbing.

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  4. Earth

    Big Water Losses

    America's ailing water-delivery infrastructure is literally throwing clean water away -- and dirtying some of what it moves toward our taps.

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  5. Life

    Heat sensors guide insects to a hot meal

    Bugs home in on seeds by detecting infrared radiation.

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  6. Life

    Avian airlines: Alaska to New Zealand nonstop

    Tracked bar-tailed godwits break previous nonstop flight record for birds.

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  7. Humans

    Elephants’ struggle with poaching lingers on

    Even as African elephants struggle to recover from decades-old poaching, the animals face new and renewed threats today.

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  8. Tech

    Coal Country’s New Foresters

    New techniques may be shaving a century or two off the recovery of mined mountain tops.

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  9. Tech

    Trading Forests for Coal

    Forested mountain peaks have been giving way to grassy planes in Appalachian coal country.

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  10. Archaeology

    Really Cool History

    Tales of the black band: Clues to a 4,200-year-old mystery lie frozen in icy records stored atop Mt. Kilimanjaro.

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  11. Climate

    Eggs, Tea and Mr. IPCC

    Even jet-lagged, the world's lead climate negotiator took time out to brief a few reporters.

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  12. Earth

    An electronic nose that smells plants’ pain

    Device can detect distress signals from plants that are harmed, under attack.

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