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E-M:/ GLIN:// Climate Change warming Lake Superior



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Enviro-Mich message from "Alex J. Sagady & Associates" <ajs@sagady.com>
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Subject: GLIN==> News Advisory -- Climate Change Warming Lake Superior and Other 
        Wisconsin Waters
From: Kathleen Schmitt <kmschmitt@aqua.wisc.edu>
To: glin-announce@great-lakes.net

NEWS ADVISORY

For More Information:   
Gene Clark, Coastal Engineering Specialist, UW Sea Grant Institute,
(715) 394-8472 or grclark@aqua.wisc.edu

CLIMATE CHANGE WARMING LAKE SUPERIOR AND OTHER WISCONSIN WATERS

Renowned limnologist John J. Magnuson will visit Superior to discuss how
loss of lake ice is a miner's canary of how rapidly global warming is
occurring. 

He will address "Climate Change and the Waters of Wisconsin" at 7 p.m.
Thursday, June 7, in the Kathryn Ohman Theatre, Room 114, McCaskill
Hall, on the UW-Superior campus. Free parking is available after 4:30
p.m. in Lot 11, located behind the Rothwell Student Center. 
      
Magnuson, Professor Emeritus at UW-Madison, spent a decade building a
database of ice records from all over the world, and it is now one of
the largest and longest records of observable climate data ever
assembled. Here in Wisconsin, these records show that over the last 30
years the duration of ice cover on Dane County's Lake Mendota decreased
8.6 days per decade. 
      
According to Magnuson, shorter periods of ice cover can increase
evaporation, which would contribute to lower water levels on the Great
Lakes and elsewhere. He says that the "typical" Wisconsin winter is
disappearing, along with the recreational activities and businesses that
depend on it. 
      
Magnuson also notes that warmer waters will affect fish that only live
within specific temperature ranges. Streams and shallow lakes are likely
to have reductions of coldwater and cool water habitat. And while the
Great Lakes will continue to provide cold, oxygenated habitats for trout
and salmon, he said many new species will invade to occupy the warmer
inshore waters. 
      
Magnuson's lecture is part of the 2007 seminar series "Climate Change in
the Great Lakes Region: Starting a Public Discussion," sponsored by the
UW Sea Grant Institute and UW-Extension and funded by the Wisconsin
Coastal Management Program and the National Oceanic and Atmospheric
Administration. See www.seagrant.wisc.edu/climatechange for details and
updates.
      

# # # #

Conceived in 1966, Sea Grant is a national network of 30
university-based programs of research, outreach, and education for
enhancing the practical use and conservation of coastal, ocean and Great
Lakes resources to create a sustainable economy and environment. The
National Sea Grant Network is a partnership of participating coastal
states, private industry, and the National Sea Grant College Program,
National Oceanic & Atmospheric Administration, U.S. Department of
Commerce. 
www.seagrant.wisc.edu


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