Earth

  1. Earth

    Volcanic Hot Spots

    Many geophysical studies, including analyses of deep-traveling seismic waves and computer simulations of flowing molten rock deep beneath Earth's crust, are providing evidence that mantle plumes actually exist.

    By
  2. Earth

    Bacteria Ride the Tide: Moon’s phases predict water quality at beaches

    At many ocean beaches, full and new moons coincide with the greatest concentrations of bacteria in the water.

    By
  3. Earth

    Antarctica’s gaining ice in some spots

    Large portions of Antarctica are storing more snowfall than they once did.

    By
  4. Earth

    Wetland Blanket: Volcanic sulfates may curb methane emission

    Field studies hint that the deposition on wetlands of sulfate compounds from the atmosphere could temporarily stifle those regions' natural emissions of methane.

    By
  5. Earth

    Farmers without Fungus: How to store peanuts to reduce toxins

    African peanut farmers can more than halve their exposure to a class of harmful fungal toxins called aflatoxins by adopting several simple measures after harvest.

    By
  6. Earth

    Icy Heat: Satellites look at heat flow through Antarctica’s crust

    Using satellite observations of Earth's magnetic field, scientists can estimate the amount of heat flowing upward through Earth's surface under kilometers-thick ice.

    By
  7. Earth

    Seismic noise can yield maps of Earth’s crust

    The small, random, and nearly constant seismic waves that travel in all directions through Earth's crust can be used to make ultrasoundlike images of geologic features within the crust.

    By
  8. Earth

    . . . and churn up big waves, too

    As Hurricane Ivan approached the U.S. Gulf Coast last September, sensors detected the largest wave ever measured by instruments.

    By
  9. Earth

    A hurricane can dump a lot of rain . . .

    Hurricanes can drop enormous amounts of precipitation in a short amount of time, a phenomenon that residents of Puerto Rico experienced in spades when Hurricane Georges struck the island in 1998.

    By
  10. Earth

    Sustainable Resource Use

    This British Web site provides educational material about the sustainable use of resources, including water, waste management, textiles, and timber. It provides puzzles, experiments, worksheets, and lesson plans, with links to a wide range of environmental information. Go to: http://www.e4s.org.uk/

    By
  11. Earth

    Gender Measure: Pollutant appears to alter boys’ genitals

    Infant boys who were exposed in the womb to modest concentrations of certain common plasticizers and solvents developed genital changes.

    By
  12. Earth

    Last Gasp: Toxic gas could explain great extinction

    Sudden venting of hydrogen sulfide from the deep sea could have caused the largest extinction in Earth's history by poisoning land animals and destroying atmospheric ozone that protects Earth from ultraviolet light.

    By