
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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