News

  1. Health & Medicine

    Poor ventilation in schools may spur TB spread

    Researchers found high carbon dioxide levels in South African classrooms, suggesting that poor ventilation may contribute to tuberculosis transmission.

    By Nathan Seppa
  2. Climate

    Crop nutrients may drop as carbon dioxide rises

    Many staple grains and legumes pack 5 to 10 percent less iron, zinc and protein when grown at carbon dioxide levels expected midcentury.

    By Beth Mole
  3. Neuroscience

    Young blood proven good for old brain

    Blood — or one of its protein components — restores some of youth’s vibrancy to elderly mouse brains.

    By Laura Sanders
  4. Health & Medicine

    MERS outbreak picks up pace in Middle East

    As the number of MERS cases increases, researchers race to learn more about the deadly virus carried by camels.