Earth

  1. Earth

    Satellites show Earth is greener

    Daily observations from space for nearly 2 decades indicate that our planet is getting greener.

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  2. Earth

    Second cancer type linked to shift work

    Women who have worked at least a few nights a month for many years appear to face a somewhat increased risk of colorectal cancer.

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  3. Earth

    Suspended Drugs: Antibiotics fed to animals drift in air

    Borne on dust floating in and around farm buildings, antibiotics given to animals may later be inhaled by people—with possibly detrimental health effects.

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  4. Earth

    Girls may face risks from phthalates

    The high incidence of premature breast development in Puerto Rican girls has been linked with phthalates, a family of ubiquitous pollutants found in plastics, lubricants, and solvents.

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  5. Earth

    Slow Turnover: Warming trend affects African ecosystem

    Over the past 90 years, rising water temperatures in Lake Tanganyika have led to dramatic losses of productivity among the microorganisms that form the base of the lake's food chain.

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  6. Earth

    Germs Begone: New technology cleans dangerous water

    For a penny per liter, people in the developing world should be able to remove most pathogens and toxic pollutants from their home drinking water.

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  7. Earth

    Lead delays puberty

    Even low concentrations of lead in a girl's body may delay her reproductive maturation.

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  8. Earth

    Meteorite Crater

    The Barringer Crater in Arizona is one of the more famous geological sites on Earth. This Web site recounts the history and science of the crater’s formation 50,000 years ago and provides information about its discovery, its purchase by D.M. Barringer, and its current status. Go to: http://www.barringercrater.com/

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  9. Earth

    Spawning Trouble: Synthetic estrogen hampers trout fertility

    Exposure to a synthetic estrogen called ethynylestradiol, which is commonly found in birth control pills and enters the waterways through sewage effluent, reduces male trout’s fertility by half.

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  10. Earth

    Treaty is Imminent for Genetically Engineered Foods

    The Republic of Palau–a 9-year-old confederation of some 300 Pacific islands–has fewer than 20,000 inhabitants and a land area only about 2.5 times the size of Washington, D.C. Yet this tiny nation southeast of the Philippines made big history last week when its government became the 50th to ratify the United Nations’ Cartagena Protocol, a […]

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  11. Earth

    New Concerns about Phthalates

    Boys may face an eventual reproductive risk from exposure to some of the ingredients that go into many common plastics, cosmetics, and medical supplies.

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  12. Earth

    Study gives new answer for muddy mystery

    Geologists provide evidence that quartz silt in ancient seabeds doesn't come from eroded land rocks, but rather from the dissolved skeletons of tiny primitive creatures, possibly altering the fossil record and changing models of prehistoric climate and ocean geography.

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