Polar News from NASA

Iceberg image superimposed with IPY RSS logo
Updates from NASA's IPY Site

Get the greatest and latest NASA IPY stories, images and videos delivered straight to your inbox by subscribing to the IPY RSS feed.

› View the RSS

ARCTAS Blogging

Photo of sled dogs
Updates from the Arctic

ARCTAS researchers are keeping the rest of us up-to-date on their progress in a blog hosted by Discovery.com.

› Read the blog

Bon Voyage!

SO GasEx logo
The SO GasEx Experiment

Scientists blog about their extended voyage off the Antarctic coast as part of a mission to study carbon dioxide levels in the ocean and atmosphere.

› Read the blog

Top Story

    Arctic Sea Ice Decline Shakes Up Ocean Ecosystems

    ice coverage map Red represents regions of open water in 2007 that were ice covered in 2006, much of which has never been ice-free for as long as measurements have been available. Credit: NASA/Stanford University
    Uncertain as to how phytoplankton -- microscopic marine plants on which much of ocean life depends -- would respond to Arctic sea ice decline, researchers took advantage of NASA satellite images to show that the microscopic floating plants are teeming in regions of recent ice melt.

    The explosion in phytoplankton populations is the result of new open-water habitat and, more significantly, an extended ice-free growing season, biological oceanographer Kevin Arrigo and colleagues from Stanford University in Stanford, Calif., reported last month in the American Geophysical Union's Geophysical Research Letters.

    Since phytoplankton cycle carbon dioxide into organic compounds and also form the base of the marine food web, the researchers believe the booming populations could have complex ecological consequences.

    > Read more

    > View "Life on Earth" Archives, Images and Video

Other Features

Multimedia Resources