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  1. Humans

    Letters from the May 26, 2007, issue of Science News

    It’s cold out there I couldn’t help noticing the last sentence of “World’s climate map gets an update” (SN: 3/24/07, p. 190): “One of the system’s 30 possible climate subtypes—a temperate climate with a cold, dry summer—wasn’t found anywhere on Earth.” The comment reveals that the writer has never read Mark Twain’s comment that the […]

    By Science News
  2. Humans

    From the May 15, 1937, issue

    A new seat of learning, hazards to workers, and a machine with feeling.

    By Science News
  3. Health & Medicine

    Cancer Risk—Understanding the Puzzle

    The news is filled with stories about cancer risk.