Vol. 159 No. #24
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More Stories from the June 16, 2001 issue

  1. Earth

    Global Warming Debate Gets Hotter

    President Bush gets the global warming report he commissioned just days before he meets with European leaders.

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  2. Earth

    New test traces underground forest carbon

    An unusual method of studying soil respiration by girdling trees may clear up several vital mysteries in the way carbon cycles through forests.

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  3. Healthy aging may depend on past habits

    A 60-year study indicates that middle-aged men can exert a considerable amount of personal control over their eventual physical and mental health as seniors.

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  4. Materials Science

    Scientists get a handle on crystal shape

    Researchers have discovered how the orientation of amino acid molecules can make a growing crystal take on either a right- or a left-handed form.

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  5. Earth

    Memory problems linked to PCBs in fish

    Adult exposures to polychlorinated biphenyls, from eating tainted fish, correlate with lower scores on learning and memorization tasks.

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  6. Health & Medicine

    Soy estrogens: Too much of a good thing?

    Two studies of female mice suggest that genistein, an estrogen analog found in soy, could contribute to cancer risk.

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  7. Planetary Science

    Nearby star may have its own asteroid belt

    Observations of warm dust swaddling a young, nearby star suggest that astronomers may have found evidence of a massive asteroid belt outside the solar system.

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  8. Anthropology

    Early agriculture flowered in Mexico

    Mexico may have served as a center of early plant domestication in the Americas, according to researchers who have excavated a site near Mexico's Gulf Coast.

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  9. Anthropology

    Human fossils tell a fish tale

    Fossil clues indicate that Stone Age humans ate a considerable amount of seafood, giving them a broader and more resilient diet than that of Neandertals.

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  10. Minke whales make Star Wars noises

    Researchers have identified the dwarf minke whales of Australia as the source of an odd sound like the firing of a Stars Wars laser gun.

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  11. Sitting around? (Chomp!) Back to work!

    An analysis of nestmates biting each other in a wasp colony suggests that the nips and outright chomps help organize work flow in the nest.

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  12. Earth

    Large earthquake would ravage Oregon

    A magnitude 8.5 earthquake off the coast of Oregon would devastate portions of the state, kill thousands of residents, and wrack the economy there for more than a decade.

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  13. Earth

    Seismic simulations help track tanks

    New computer models developed to analyze how seismic vibrations travel through uneven terrain can also be used to identify and track heavy vehicles such as tanks and trains.

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  14. Earth

    Midlatitude bogs store carbon best

    Sediments in lakes and bogs along the eastern coast of the United States show that midlatitude bodies of water have sequestered higher amounts of carbon than others since the last ice age.

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  15. Earth

    More acid rain in East Asia’s future

    Large increases in Asian industrial emissions of nitrogen oxides in the next 30 years could lead to a tripling of the acid rain there due to those pollutants.

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  16. Earth

    Alaska’s coastal permafrost is eroding

    Aerial photographs taken over the past 50 years show that Alaska's coastlines of permafrost aren't that permanent after all.

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  17. Physics

    New probe zooms in on midgets of magnetism

    A new microscope for peering at magnetic materials provides the first glimpses of how such materials behave on a scale of only tens of atoms.

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  18. Math

    Surprisingly Square

    Mathematicians take a fresh look at expressing numbers as the sums of squares.

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  19. Health & Medicine

    Coming to Terms with Death

    Some newly recognized forms of cell death might be harnessed to aid people with cancer and other serious diseases.

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