Great Lakes

Cleaning Up After Pollution

Cleaning Up After Pollution

It is very difficult to reverse the effects of water pollution. Natural processes that cleanse the water can take years, decades, or even centuries, and even with costly technological processes, it can take years to remove all of the harmful substances from the water. 

Facts and Statistics: Did You Know?

Facts and Statistics: Did You Know?

About 70 percent of the earth is water, but only 2.5 percent of that is freshwater. Of the freshwater, 68.9 percent is in the form of glaciers and snow cover, 30.8 percent is groundwater, and about 0.3 percent is in lakes and rivers.

The Great Lakes

The Great Lakes

The Great Lakes are a set of five lakes in Canada and the United States, connected by approximately 5,000 tributaries. The five lakes are Lake Superior, Lake Michigan, Lake Huron, Lake Erie and Lake Ontario. The Great Lakes basin includes two countries, eight states, one province, dozens of tribes and First Nations communities and hundreds of local municipal and regional governments.