Earth

  1. Earth

    Warm band may have girdled snowball Earth

    A swath a liquid ocean may have hugged the planet's midriff even during the most frigid global climatic episodes between 800 million and 600 million years ago, allowing life to survive.

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  2. Earth

    Finned Pollution Is One Cost of Our Exotic Tastes

    Diners in most countries are accustomed to having an international array of foods in their pantries and eateries. It started more than a millennium ago when spice traders plied the caravan routes linking China to Istanbul. From Turkey, traders shipped their condiments throughout Europe and eventually to the New World. Northern or Chinese snakehead (Channa […]

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  3. Earth

    Shaked Alaska: A sleepy fault wakes and reveals new links

    One of the most powerful earthquakes ever recorded on U.S. land shook south-central Alaska on Nov. 3, revealing activity along the Denali fault.

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  4. Earth

    Pesticides block male hormones

    Some common pesticides can block the ability of androgens, male sex hormones, to trigger normal gene activities.

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  5. Earth

    Weed killer feminizes fish

    The weed killer atrazine can turn normally hermaphroditic fish into females, a new study shows.

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  6. Earth

    Is a faster commute worth it?

    Living near busy roads is bad for your heart and lungs.

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  7. Earth

    Wildfire Below: Smoldering peat disgorges huge volumes of carbon

    Set alight by wildfires, thick beds of decaying tropical plant matter can pump massive amounts of carbon into the atmosphere, rivaling those produced globally each year from the combustion of fossil fuels.

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  8. Earth

    Hunting Prehistoric Hurricanes

    Storm-tossed sand offers a record of ancient cyclones.

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  9. Earth

    Prescribed fire burns out of control

    A fire set by the National Park Service to clear underbrush burned out of control, consuming more than 44,000 acres around Los Alamos, N.M.

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  10. Earth

    Once Upon a Lake

    As Earth warmed at the end of the last ice age, the immense volumes of fresh water that occasionally and catastrophically spilled from Lake Agassiz—the long-defunct lake that formed as the ice sheet smothering Canada melted—may have caused global climate change and sudden rises in sea level.

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  11. Earth

    More Frog Trouble: Herbicides may emasculate wild males

    New studies of male frogs in the wild link trace exposures to common weed killers with partial sex reversal.

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  12. Earth

    Timely Climate

    Science educators at the University of Colorado and the National Geophysical Data Center in Boulder have designed an online tool that lets users study climate change and variability on different time scales–from daily fluctuations to cyclic changes with periods that span 100,000 years. Focusing on climatic processes and specific climate events, each time-scale category has […]

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