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article imageGlobal warming to deplete Great Lakes even more

By Owen Weldon     May 28, 2008 in Environment
A report that was released on Wednesday says that global warming will likely drain more water from the great lakes and pose added pollution threats to the region's vulnerable ecosystem.
The report also says that climate change might even reduce scant ice cover observed in recent winters and that will increase evaporation rates and drop the levels of water in the five lakes. The lakes make up 20 percent of the world's surface fresh water when they are combined.
The environmental group called the Healing Our Waters-Great Lakes Coalition said that last year lake Superior water levels dropped and receded to their lowest levels in 77 years before rebounding. The group also predicts that over the next century global warming could lower lake levels by up to 3 feet.
The lower levels could cause hamper lake shipping, expose polluted sediments, and further damage water quality.
Jeff Skelding, who represents the group, said that climate change is a big threat to the great lakes and it is also jeopardizing efforts to restore them.
The report also said that global warming added to the urgent need for the U.S. Congress to act on more pieces of a $20 billion Great Lakes restoration plan which was proposed back in 2005.
The report goes on and says that billions of dollars are needed to repair antiquated sewage treatment plants as well as cleaning up toxic sediments from past pollution, restoring coastal wetlands that naturally cleanse pollutants and stopping invasive species of fish, plants and mussels.
Some scientists predict that more frequent droughts will hurt the lakes' coastal ecosystem and that will be accompanied by more intense storms that will produce runoff containing toxic metals, viruses and other pollutants.
So the report is urging congress to spend billions of dollars on this. That is kind of ridicules because the earth was here before the dinosaurs, before humans and the earth will be here long after humans are gone.
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