News

  1. Earth

    Scraping the bottom

    A survey of deep waters in western Lake Superior has revealed the tracks left by massive icebergs scraping bottom there during the last ice age.

    By Sid Perkins
  2. Earth

    Glaciers give major boost to sea level

    The ongoing disappearance of glaciers and other small ice masses worldwide makes a larger contribution to sea level rise than the melting of ice sheets on Greenland and Antarctica does.

    By Sid Perkins
  3. Earth

    Dating a massive undersea slide

    Pieces of moss buried in debris left along the Norwegian coast by an ancient tsunami have enabled geologists to better determine the date of the immense underwater landslide that triggered the inundation.