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  1. 18908

    In the March 17 issue, there was an article about arsenic pollution disrupting hormone activity (“Arsenic pollution disrupts hormones”) and another article concerned with satellite verification of greenhouse-gas effects from increased levels of carbon dioxide and methane (“Satellites verify greenhouse-gas effects”). Ironically, that same week, President Bush recommended that more stringent arsenic standards be set […]

    By Science News
  2. Earth

    Satellites verify greenhouse-gas effects

    Comparisons of data obtained from instruments that orbited Earth more than 25 years apart provide direct evidence that the planet's greenhouse effect increased significantly between 1970 and 1997.

    By Sid Perkins
  3. Humans

    Science Talent Search winners shine bright

    Science Service and Intel announced the winners of the 2001 Science Talent Search.