Uncategorized

  1. Ragweed may boom with global warming

    An experiment that includes artificially heating plots of tallgrass prairie suggests that global warming could boost growth of ragweed, putting more pollen into the air for allergy sufferers.

    By Susan Milius

  2. Speech veers left in babies’ brains

    The beginnings of left-brain specialization for speech understanding appear in 2-to-3-month-old babies as they listen to an adult talk, according to a new brain-scan investigation.

    By Bruce Bower
  3. Health & Medicine

    Researchers target sickle-cell cure

    Using stem cell transplants and a compound called antithymocyte globulin, researchers in Paris have cured 59 of 69 children of sickle-cell disease.

    By Nathan Seppa
  4. Earth

    Rivers run to it

    Increasing freshwater discharges into Arctic waters could disrupt important patterns of deep-water ocean circulation that affect climate.