Liquid gold

摘要

For decades the Great Lakes region has seen a slow ebb. Factories have moved abroad or, more insulting, to the South. Residents have fled to sunnier states. But the lakes themselves remain; and while much of America is regularly afflicted by drought, they hold enough water to submerge the entire country. Now the Great Lakes states are reconsidering their main asset. Water, the boosters say, will bring prosperity once more.