A CALL FOR THE DEVELOPMENT OF SOCIATRY
Edward Schreiber
edwschreiber at earthlink.net
Sat Aug 8 08:09:11 CDT 2009
It is time to bring our method to a new level. A call to all of us
to join together
CNN REPORTS
Glaciers a canary in the coal mine of global warming
STORY HIGHLIGHTS
A 50-year government study found world's glaciers melting at rapid,
alarming rate
Study is latest in series that found glaciers melting faster than
anyone predicted
Study shows accelerating climate change and warming earth, say authors
(CNN) -- U.S. scientists monitoring shrinking glaciers in Washington
State and Alaska reported this week that a major meltdown is under way.

The Gulcana glacier in Alaska is one of three glaciers considered a
benchmark by the U.S. Geological Survey.

A 50-year government study found that the world's glaciers are
melting at a rapid and alarming rate. The ongoing study is the latest
in a series of reports that found glaciers worldwide are melting
faster than anyone had predicted they would just a few years ago. It
offers a clear indication of an accelerating climate change and
warming earth, according to the authors.
Since 1959, the U.S. Geological Survey, which published the study on
its Web site, has been tracking the movements of the South Cascade
glacier in Washington State and the Wolverine and Gulcana glaciers in
Alaska. The three glaciers are considered "benchmarks" for the
conditions of thousands of other glaciers because they're in
different climate zones and at various elevations.
"These changes are taking place in Washington State and Alaska in
three different climate regimes," said Edward Josberger, the lead
researcher on the study with the USGS Washington Water Science Center
in Tacoma, Washington. "So we feel it's definitely something going
on, probably on a global scale, and of course, if you look at other
such measurements around the world and put it all together, yes,
glaciers are retreating and retreating rapidly."
In a telephone interview with CNN, Josberger called the unprecedented
glacial melt the "canary in the coal mine."
The half-century record contains measurements of the amount of snow
that has fallen on the glaciers each winter and on how much ice has
melted off each summer. The data give scientists a sense of whether
the glacier is getting more "healthy" or losing mass, Josberger said.
They also indicate what's happening to mountain glaciers in other
parts of the world, the scientist said.
"We feel it's definitely the signature of global change and climate
warming," Josberger said.
The melt of glaciers is resulting in higher sea levels and affecting
ecosystems and the rivers that emanate from these glaciers, Josberger
said. "In terms of water supply available for people, Anchorage is
fed by two glacially fed lakes. There are some very strong impacts
that could happen."
The rate at which a glacier melts depends on its thickness and mass
and, of course, on the temperature. Even small changes in temperature
of only one to two degrees can have a significant impact on the
environment, according the the National Weather Service.
"We've been using this 50-year record to interpret the changes or the
response of glaciers to climate change," Josberger said. "Basically,
in the past 10, 15 or 20 years these three glaciers are wasting away.
The melting has far exceeded the amount of snow that falls on them in
the winter, so they're retreating far up valley. And this retreat is
taking place all over the Pacific Northwest and Alaska."
For example, Washington's South Cascade glacier has lost half its
volume since 1960 and is predicted to lose half its current volume in
100 years.
And, if the canary analogy proves true, the ice retreat is likely
occurring all over the world, too, he said.
Glacier melt will likely continue and, as it does, sea levels around
the world are expected to continue rising. And that could affect
people in low-lying coastal communities, forcing them from their
homes and further inland, experts say. E-mail to a friend 
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