Great Lakes Face Pressure for Water

The Great Lakes hold six quadrillion gallons of water, which is 20 percent of the world's fresh surface water. As scarcity grows, there is concern more and more people are eying that water. A historic compact to protect the Great Lakes became law in 2008, and it's being tested for the first time in a thirsty suburb of Milwaukee. Illinois Public Radio's Lynette Kalsnes looks into the law and its history.

(Photo courtesy of Qfamily/Flickr)