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University of Windsor invasive species research centre closes
CBC News (5/27)
The Canadian Aquatic Invasive Species, based at the University of Windsor, is closing because it's run out of federal funding.

Stockbridge HS invention to monitor Great Lakes pest
Lansing State Journal (5/27)
In Michigan, a team of Stockbridge High School students has spent the past year designing an underwater camera to keep tabs on the state’s fight against invasive sea lampreys. Next week their invention will get its first real test.

'Once in a lifetime ' experience: Lighthouse keeper on Lake Superior
CBC News (5/19)
A group is hiring two students to serve as lighthouse keepers this summer on Porphyry Island, about 40 kilometers east of Thunder Bay, Ont.

Superior students set sail for hands-on learning about St. Louis River, Lake Superior
Wisconsin Public Radio (5/16)
Close to 1,500 students from northern Minnesota and Wisconsin set sail for a day on St. Louis River to learn about the Great Lakes, as part of the week-long St. Louis River Quest.

Tree group aims to ‘ReLeaf’ Michigan
WKAR - East Lansing, MI (5/10)
An Ann Arbor-based organization has been planting trees all over Michigan since 1988. ReLeaf Michigan helps property owners learn about trees and how to plant them, citing their numerous benefits.

Coldwater bacteria threatens Great Lakes salmon
Charlevoix Courier (5/3)
A new study shows a bacterial disease that sickens fish whether raised in captivity or in the wild is imperiling popular salmon species in the Great Lakes Basin.

TEACH Calendar of Events
What's going on in your neighborhood this month? Meet other people and learn together at recreational and educational events! Our new dynamic calendar is updated daily with current educational events.
TEACH Water Pollution in the Great Lakes

5 | Lake Erie: "We have met the enemy and he is us"*

The Lorax, by Dr. Seuss In the 1960s, Lake Erie was declared "dead," though, ironically, it was full of life -- just not the right kind. Eutrophication had claimed Lake Erie and excessive algae became the dominant plant species, covering beaches in slimy moss and killing off native aquatic species by soaking up all of the oxygen. The demise of Lake Erie even made it into a Dr. Seuss book, The Lorax.

Lake Erie is the shallowest and warmest of the five Great Lakes, and the basin is also intensively developed with agriculture, urban areas, industries and sewage treatment plants. For decades, pollution filled Lake Erie with far more nutrients than the lake could handle, with phosphorous being the main culprit. Phosphorous is a fertilizer that induces plant growth and algae and was also found in many commercial detergents at the time. Plants began growing, dying and decomposing in Lake Erie, creating anoxia (severe deficiency of oxygen) at the bottom of the lake and leaving the water's surface putrid and mossy. The lack of oxygen killed fish and other aquatic species, and the smelly surface repelled anglers, tourists and those living around Lake Erie. Heavy metals also had contaminated much of the fish population of Lake Erie.

In response to public concern and recommendations by the International Joint Commission, the Great Lakes Water Quality Agreement was signed by the United States and Canada in 1972. The Agreement emphasized the reduction of phosphorous entering lakes Erie and Ontario, and in 1977 maximum levels for phosphorous were added to the Agreement. Also, phosphorus in detergents was finally banned. Coupled with the U.S. and Canadian Clean Water acts, the GLQWA did much to reduce the phosphorus levels in Lake Erie.

Today, phosphorus loads in Lake Erie are now below the maximum allowed in the GLWQA, and eutrophication has been controlled. Algae and excessive plant growth has been reduced, and native plants are once again growing in sections of the lake. Lake Erie still has many problems -- such as non-native invasive species, contaminated sediments and closure of beaches due to sewage contamination. But, through international cooperation and public advocacy, the lake is no longer considered "dead," and, hopefully, people have a better understanding and concern for the effects of human activity on water quality in the Great Lakes and beyond.

* The Late, Great Lakes, by William Ashworth, Alfred A. Knoph, Inc. (pg. 133), 1988.

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