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  1. Humans

    Letters from the March 17, 2007, issue of Science News

    Disputable thesis “Counterintuitive Toxicity: Increasingly, scientists are finding that they can’t predict a poison’s low-dose effects” (SN: 1/20/07, p. 40) took a wrong turn into Hormesis Swamp. The hormesis thesis has been thoroughly discredited by all major radiation organizations and professional societies, and its past conferences have been sponsored by tobacco companies and the U.S. […]

    By Science News
  2. Humans

    From the March 6, 1937, issue

    Machines creating new jobs, stopping smoke with sound, and conflicts over atomic structure.

    By Science News
  3. Earth

    National Environmental Education Week

    The third annual National Environmental Education Week will take place April 15-22, 2007, culminating with Earth Day on April 22.