Earth

  1. Environment

    Getting the dirt on carbon

    The circle of life continues thanks to the carbon cycle.

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  2. Animals

    Sponges’ secret weapon

    An aquatic animal provides a possible new kind of disease resistance.

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  3. Earth

    Antarctica warms, which threatens penguins

    Unexpected rates of warming threaten to change Antarctica and pose a threat to the survival of some of its penguins.

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  4. Earth

    Science loses out when ice caps melt

    Tropical glaciers are vanishing at an especially rapid pace—and taking valuable climate records with them.

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  5. Environment

    Mood-boosting drugs make unhappy fish

    Drugs called antidepressants find their way into lakes and streams, affecting the behavior of fish living there in unexpected ways.

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  6. Fossils

    South America’s sticky tar pits

    The fossil-rich tar pits of Venezuela may rival those in Southern California.

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  7. Agriculture

    Farms sprout in cities

    The farms of the future may be where you would least expect to find them -- in towering skyscrapers in some of the world's largest cities.

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  8. Environment

    Our plastic world

    Some products contain chemicals that can pose a serious health risk.

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  9. Tech

    Lighting goes digital

    Brighter and more efficient, LED lights are on the horizon.

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  10. Earth

    Where rivers run uphill

    Three scientists travel to Antarctica to explore a secret world hidden beneath the ice.

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  11. Climate

    In Antarctica watch the heat (and your step)

    Behind the scenes: news detective.

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  12. Earth

    A feverish world

    The second of a two-part series on climate change.

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