News

  1. Earth

    Going Down: Climate change, water use threaten Lake Mead

    If climate changes as expected and future water use is not curtailed, there's a 50 percent chance that Arizona's Lake Mead, one of the southwestern United States' key reservoirs, will become functionally dry in the next couple of decades.

    By Sid Perkins
  2. Health & Medicine

    Benign—Not: Unexpected deaths in probiotics study

    Acute pancreatitis patients provided nutrition laced with supposedly beneficial gut microbes died at far higher rates than did patients who received just the nutrients.

    By Janet Raloff
  3. Animals

    People bring both risk and reward to chimps

    Tolerating human researchers and ecotourists brought a group of chimpanzees a higher risk of catching human diseases but a lower chance of attacks from poachers.