Earth and Space Science - Geochemical cycles

  • A large structure on water on fire, large black cloud, large surrounding ships spraying water
    Gulf oil spill: It’s a gusher – one mile deep!

    What kind of ecological damage can we expect from a sustained blowout in the Gulf of Mexico? What are the lessons of Exxon Valdez, and how well do they apply to the current outbreak of oil? Is prevention really the only strategy?


    Thursday, May 20th, 2010
  • Electric Cars: Meet the plug-in Hybrid
    Electric Cars: Meet the plug-in Hybrid

    Hybrid cars and plug-in hybrids boost auto efficiency and reduce pollution, but it’s a long struggle from the idea to the reality.


    Thursday, November 29th, 2007
  • Understanding Volcanoes

    How do volcanoes work (p. 2)? How do we predict them (p. 3)? How do they change the landscape (p. 4)? How does life return after the eruption (p. 6)?


    Thursday, October 21st, 2004
  • Food Pyramid Gets Facelift

    To battle the bulging waistline, the feds have devised 12 food pyramids to help choose a lifestyle that balances nutrition and excercise. Is this mound helpful?


    Thursday, June 19th, 2003
  • Galapagos: The Evolution Islands

    Are the Galapagos islands the birthplace of evolution theory and evolution science? What did Darwin learn there, and how are they being preserved nowadays?


    Thursday, January 11th, 2001
  • Natural Gas: Vast New Supply?

    Gas hydrates under the ocean may contain an almost unlimited supply of energy, but they’re hard to get, and using them could make global warming even worse. Now a UC-Riverside professor says quick releases of frozen methane could cause a climate catastrophe. So is this gas a blessing, a curse, or both?


    Thursday, October 5th, 2000
  • Climate: Fast Change Is Real. Deal with It!

    New research shows that climate of the entire North Atlantic region cooled abruptly and repeatedly during the Holocene period. Drill hole reveals rapid temperature change during past few thousand years. If climate could change so much back then, what about today?


    Monday, July 10th, 2000


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