Earth

  1. Earth

    Winged solution to biopollution?

    Government officials have released alien moths in hopes that they will rein in the spread of an aggressive climbing fern now invading some 100,000 acres in south Florida.

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  2. Earth

    Straight Flush

    Scientists are evaluating the results of the flood they unleashed in the Grand Canyon last November, hoping that it will restore sandbars and beaches along the Colorado River just downstream of Arizona's Glen Canyon Dam.

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  3. Earth

    Lava fountain driven by reservoir of gas

    The gases driving a lava fountain that spewed from Italy's Mount Etna in June 2000 had accumulated in a reservoir 1.5 kilometers below the mountain's peak, chemical analyses suggest.

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  4. Earth

    Adding mussel to environmental assessments

    Researchers have developed a new technique, using mussel shells, that could aid in autopsies of aquatic ecosystems that perished for unknown reasons.

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  5. Earth

    PCBs damage fish immune systems

    A common Arctic fish can suffer subtle immunological impairments from exposure to polychlorinated biphenyls at concentrations recorded in some remote polar waters.

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  6. Earth

    Sky High: Gamma-ray bursts are common in Earth’s upper atmosphere

    Enigmatic bursts of high-energy gamma rays produced Earth's atmosphere are stronger and more frequent than previously thought.

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  7. Earth

    Subway air does extra damage

    Airborne particles in subterranean transit stations may be more damaging to human cells than are particles from street-level air.

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  8. Earth

    Natural or Synthetic? Test reveals origin of chemicals in blubber

    Natural compounds that are chemically akin to certain industrial chemicals wend their way up marine food chains and accumulate in whale blubber.

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  9. Earth

    Long-winded benefits

    Certain wind-energy systems that store excess energy for a time using compressed air can be as reliable as and far cleaner than conventional electric-generating plants.

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  10. Earth

    Of X rays, viruses, and cooked meat

    The National Toxicology Program updated its list of human carcinogens to include X rays and several viruses and added lead and some compounds formed in overcooked meats to its list of probable human carcinogens.

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  11. Agriculture

    Illegal cigarettes pack toxic punch

    Tobacco used in counterfeit cigarettes is apparently grown using metal-laced fertilizers, making the fake products even more harmful than the real things.

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  12. Earth

    Ice age hit Missouri 2.4 million years ago

    Analyses of a soil sample from central Missouri suggest the date of onset of North America's most recent spate of ice ages.

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