Earth

  1. Earth

    Ancient Heights: Leaf fossils track elevation changes

    A new technique using altitude-dependent differences in fossil leaves may make it possible to chronicle the rise and fall of mountain ranges over millions of years.

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  2. Earth

    Snow Blow: Image of Mount Everest from orbit captures enormous plume

    A photograph from Earth orbit of an immense plume of snow wafting from Mount Everest could shed new light on how strong winds redistribute precipitation in the Himalayas and other mountain chains.

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  3. Earth

    Some temblors probably were triggered by tides

    Detailed analyses of large earthquakes suggest that some of them may have been triggered by strong tides in Earth's crust.

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  4. Earth

    Inhaled particles damage vascular lining

    Airborne soot and other pollutant particles can impair the ability of tiny vessels in the body to properly regulate blood flow, an animal study finds.

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  5. Earth

    Damp sandcastles

    What keeps the 500-meter-tall dunes of China's Badain Jaran desert immobile, despite arid, windy conditions, is a previously unknown source of groundwater.

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  6. Earth

    Salmon puzzle: Why did males turn female?

    Most of the spawning female Chinook salmon in one part of the Columbia River appear to have started life as males.

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  7. Earth

    Dead zones may record river floods

    Microorganisms that live in seafloor sediments deposited beneath periodically anoxic waters near the mouths of rivers could chronicle the years when those rivers flooded for extended periods.

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  8. Earth

    Lead’s a moving target at rifle ranges

    The lead used in bullets and shotgun pellets can be a threat to the environment near rifle ranges but many of its hazards are manageable.

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  9. Earth

    Can Banking Carbon Cool the Greenhouse?

    Stockpiling carbon dioxide in plants and soil may be effective only for the short term, if at all.

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  10. Earth

    Wafting pesticides taint far-flung frogs

    Agricultural pesticides blowing into California's wilderness areas have played a role in mysterious declines in frog populations.

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  11. Earth

    New accord targets long-lived pollutants

    Negotiators drafted an agreement to ban or phase out some of the world's most persistent and toxic pollutants.

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  12. Earth

    Choked Up: How dead zones affect fish reproduction

    Some Gulf coast fish exposed to low oxygen are experiencing reproductive problems, and lab studies suggest that a particular protein that silences or reduces sex hormones may be to blame.

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