Earth

  1. Earth

    Farmers could help heal Gulf of Mexico

    Farm-derived nutrients in the Mississippi River that create a huge dead zone in the Gulf of Mexico could probably be substantially reduced if farmers simply used a little less fertilizer.

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  2. Earth

    Uranium recorded in high-altitude ice

    An international team of scientists has analyzed a lengthy core of ice and snow drilled from atop Europe's tallest mountain to produce the first century-long record of uranium concentrations in a high-altitude environment.

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  3. Earth

    Grape-harvest dates hold climate clues

    The vintner's habit of picking no grapes before their time may give scientists a tool that could help verify reconstructions of European climate for the past 500 years.

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  4. Earth

    Bottled Water for All?

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  5. Earth

    Researchers confirm sea change in oceans

    A new analysis of ancient seawater shows that the ocean's chemistry has fluctuated over the last half-billion years.

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  6. Earth

    How polluted is a preschooler’s world?

    Preliminary data from a new study show that children may ingest traces of atrazine, a common herbicide, in their drinking water.

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  7. Earth

    Kitchen tap may offer drugs and more

    Excreted drugs and household chemicals are making their way through community waste-treatment and drinking-water plants.

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  8. Earth

    Composting cuts manure’s toxic legacy

    Composting manure reduces its testosterone and estrogen concentrations, limiting the runoff of these hormones, which can harm wildlife.

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  9. Earth

    Photo Treasures

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  10. Earth

    Lowland tree loss threatens cloud forests

    Changes in regional climate brought about by large-scale deforestation in the eastern lowlands of Central America are affecting weather in the mountains downwind, imperiling ecosystems there.

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  11. Earth

    Ill Winds

    Research suggests that the long-range movement of dust can sicken wildlife, crops—even humans—a continent away.

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  12. Earth

    Rain of foreign dust fuels red tides

    Soil particles from Africa, raining out from clouds over the Americas, may trigger the first steps that lead to toxic red-tide algal blooms off Florida.

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