Much of the industry in the nation’s mid-section relies on
shipments of raw materials on the Great Lakes. Great Lakes ports in the
U-S and Canada handle more than 200-million tons of material annually.
The Lakes are also a source of water and recreation for nearly a third
of
the nation’s population. But, during the last two years, water levels
have
been falling at a record breaking pace. The Great Lakes Radio
Consortium’s Lester Graham reports: