ARCTIC, ANTARCTIC MELTING MAY RAISE SEA LEVELS FASTER THAN EXPECTED
Date: Thursday, March 23, 2006 @ 20:12:22 UTC
Topic: General


Ice sheets covering both the Arctic and Antarctic could melt more quickly than expected this century, according to two studies that blend computer modeling with paleoclimate records. Led by scientists at the National Center for Atmospheric Research (NCAR) and the University of Arizona, the studies show that by 2100, Arctic summers may be as warm as they were nearly 130,000 years ago when sea levels rose to 20 feet (6 meters) higher than they are today.


Full story at http://www.physorg.com/news12083.html

CHANGES IN AGRICULTURAL PRACTICES COULD HELP SLOW GLOBAL WARMING, March 23
Farmers who plant more crops, increase irrigation coverage and till the land less can have a profound effect on climate. Climate scientists from Lawrence Livermore National Laboratory found that models that included recent changes in agricultural practices, such as more irrigation, higher yielding crops, and less tillage, predicted lower temperatures than models that ignored these factors.
Full story at http://www.physorg.com/news12075.html


OLD ICE PROVIDES INSIGHTS INTO MAJOR CLIMATE CHANGE, March 23
All cold periods throughout the past 740,000 years were associated with a significantly larger sea ice cover around the Antarctic than warm periods. At the same time, South America's south was significantly drier and windier than nowadays, leading to a much higher dust deposition in the Antarctic.
Full story at http://www.physorg.com/news12063.html

STUDY: GLUM ASSESSMENT OF AMAZONIAN FOREST, March 23
Scientists at Brazil's Federal University of Minas Gerais say wildlife reserves will not be enough to prevent deforestation of the Brazilian Amazon.
Full story at http://www.physorg.com/news12062.html

STUDY: U.S. FIRMS IGNORING GLOBAL WARMING, March 23
An environmental report from the Ceres organization indicates European and Asian firms are more attentive to global warming than American businesses.
Full story at http://www.physorg.com/news12061.html

CLIMATE CHANGE AND THE RISE OF ATMOSPHERIC OXYGEN, March 23
Today's climate change pales in comparison with what happened as Earth gave birth to its oxygen-containing atmosphere billions of years ago. By analyzing clues contained in rocks, scientists at the Carnegie Institution's Geophysical Laboratory have found that the initial rise of oxygen (O2) was transitory and that its final emergence may have been linked to volcanoes and catastrophic glaciations.
Full story at http://www.physorg.com/news12051.html








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