Earth

  1. Earth

    A Whale’s Tale: Puzzling marine compounds are natural

    Antique whale oil shows that some mysterious compounds that resemble DDT and PCBs are naturally produced.

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  2. Earth

    Waters near croplands impair frogs’ immunity

    Pesticide-containing waters leave frogs more susceptible to fungal infections than pristine environments do.

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  3. Earth

    Nearly Naked: Large swath of Pacific lacks seafloor sediment

    Little or no sediment has accumulated on a broad patch of ocean bottom in the remote South Pacific, the result of a combination of factors that probably can't be found anywhere else on Earth.

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  4. Earth

    Ancient hot spell is linked to copious carbon dioxide

    A mineral that formed in some lakes during a lengthy and particularly warm period in Earth's past suggests that atmospheric concentrations of carbon dioxide were at that time at least triple those found in today's air.

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  5. Earth

    Hot, Hotter, Hot: Climate seesawed during dinosaur age

    The climate during the time of the dinosaurs varied far more than scientists had previously thought.

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  6. Earth

    Reading the tale of an ancient river

    Ocean-floor sediment near England holds material deposited during the last ice age by what was then Europe's largest river system.

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  7. Earth

    Space Weather News

    Updated daily, this Web site provides news of activity in the sun-Earth environment, including solar wind, sunspot, and solar flare data, along with information on near-Earth asteroids, geomagnetic storms, and more. Go to: http://www.spaceweather.com/

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  8. Earth

    Gassy Bugs: Microbes may produce propane under the sea

    Microbes deep under the ocean's floor could be the source of some ethane and propane found in sediments.

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  9. Earth

    Mystery of the Missing Heat: Upper ocean has cooled slightly in recent years, despite warming climate

    Between 2003 and 2005, the top layers of the world's oceans cooled slightly, but scientists aren't sure where the heat went.

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  10. Earth

    Tox Town

    This Web site from the U.S. National Library of Medicine offers an interactive introduction to toxic chemicals and environmental health risks that people might encounter in everyday life and in everyday places. The site includes many links to additional information and a section for teachers. Go to: http://toxtown.nlm.nih.gov/

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  11. Earth

    Sustainable Design Competition

    Do you have an idea for a cutting-edge technology that could protect the environment while promoting economic growth? The U.S. Environmental Protection Agency (EPA) is offering college professors and their students an opportunity to turn ideas into reality through its P3 (People, Prosperity and the Planet) grants competition. EPA’s P3 is a student design competition […]

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  12. Earth

    Sea Turtles—What Not To Eat

    Wildlife scientists hope to reduce widespread consumption of sea turtle meat and other products by pointing out the health risks they pose.

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