Uncategorized

  1. Earth

    Portrait of a Meltdown: Many factors led to 2007’s record low in Arctic sea ice

    A variety of climatological factors converged in a perfect storm that melted the Arctic Ocean's ice cover to a record low in 2007. It could be a harbinger of ice-poor summers for decades to come.

    By Sid Perkins

  2. New clue to Down syndrome, leukemia link

    One-fifth of people with Down syndrome who also have acute lymphocytic leukemia harbor a mutation in their JAK2 gene.

    By Nathan Seppa
  3. Health & Medicine

    Immune cells to fight leukemia

    A cancer vaccine against leukemia helps some patients avoid a relapse for months or years, but only if given early in the course of the disease or when a patient is in remission.