New water lows for Great Lakes could drain local economies

(CNN) -- Chris Berkey makes his living plying the often treacherous waters of
the Great Lakes, delivering staples like cement to industries nestled in the
myriad harbors that dot a coastline that's equal to nearly half of the
circumference of the globe.
It's not glamorous work, but it is critical to the U.S. economy. And it's [...]
Source:
http://www.ezonearticle.com/2013/01/13/new-water-lows-for-great-lakes-could-drain-local-economies-2/