Earth

  1. Earth

    Toxic Tides: Another reason to worry about hurricanes

    The hurricanes that struck Florida in the summer of 2004 also may have triggered an intense, widespread, and long-lasting red tide that afflicted the state's west-central coast throughout 2005.

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  2. Earth

    Deep-sea action

    Scientists using remotely operated vehicles have reported the first close-up observations of a deep undersea volcano during its eruption.

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  3. Earth

    Oil Booms: Whales don’t avoid noise of seismic exploration

    Field tests in the Gulf of Mexico suggest that sperm whales there don't swim away from boats conducting seismic surveys of the seafloor, but the noise generated by such activity may be subtly affecting the whales' feeding behavior. With video.

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  4. Earth

    Lazarus, the amphibian

    The painted frog, unseen for more than a decade and feared to be extinct, has resurfaced in a remote desert highland of Colombia.

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  5. Earth

    Pumped-up Poison Ivy: Carbon dioxide boosts plant’s size, toxicity

    Rising carbon dioxide in the atmosphere could make poison ivy grow much faster and become more toxic.

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  6. Earth

    Three Gorges Dam is affecting ocean life

    Oceanographic surveys suggest that China's Three Gorges Dam is already influencing biological productivity in the East China Sea, even though the structure is still under construction.

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  7. Agriculture

    Biotech cotton: Less spray but same yield

    The way farmers grow transgenic cotton in Arizona lets them skip some of their regular spraying but end up with the same yield as traditional farmers, as well as the same impact on ants and beetles.

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  8. Earth

    Blast Survivors: Fragments of asteroid found in ancient crater

    Pieces of an asteroid that blasted a 70-kilometer-wide crater in southern Africa millions of years ago may have been found intact inside the thick layer of once-molten rock that the impact left behind.

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  9. Earth

    Tainted by Cleanser: Antimicrobial agent persists in sludge

    About 76 percent of a commonly used antimicrobial agent exits sewage-treatment plants as a component of the sludge that's often used as a farm fertilizer.

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  10. Earth

    Particular Problems

    Toxicologists and chemists are forging a new field called nanotoxicology as they grapple with assessing the safety of engineered nanoparticles.

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  11. Earth

    Brain Delay: Air pollutants linked to slow childhood mental development

    Pollutants spewing from vehicles and power plants may be harmful to fetal brains.

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  12. Earth

    Seismic Speed Traps: Iron-rich regions may slow deep-Earth vibes

    Large quantities of iron-rich minerals may be responsible for the sluggishness of seismic waves traveling through certain regions deep within Earth.

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