News

  1. Earth

    Falling Behind: North American terrain absorbs carbon dioxide too slowly

    North America's vegetation soaks up millions of tons of carbon dioxide from the atmosphere each year, an impressive rate of sequestration that still can't keep up with the prodigious emissions of the planet-warming gas generated by human activity on the continent.

    By Sid Perkins
  2. Health & Medicine

    Calculated Risk: Shedding light on fracture hazards in elderly

    Diminished bone density in elderly people contributes to fractures following traumatic accidents.

    By Nathan Seppa
  3. Plants

    So Sproutish: Anti-aging gene for plants gives drought protection

    A gene that can hold off the decrepitude of old age in plants offers an unusual approach to protecting crops from drought.