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  1. Earth

    What’s happening to German eelpout?

    Reproductive anomalies in eel-like fish may represent good markers of exposure to hormones or pollutants that mimic them.

    By Janet Raloff
  2. Earth

    Flame retardants morph into dioxins

    Sunlight can break down common flame retardants, now nearly ubiquitous in the environment, into unusual chemicals in the dioxin family.

    By Janet Raloff
  3. Earth

    Reused paper can be polluted

    Toxic chemicals can end up in recycled paper, making release of these reused materials into the environment potentially harmful.

    By Janet Raloff

  4. From the May 20, 1933, issue

    LARGEST X-RAY TUBE BEGINS TO BATTLE AGAINST CANCER The mightiest weapon yet to enter the war against cancer was put in operation at the Mercy Hospital Institute of Radiation Therapy of Chicago.