Lake Erie's dead zone re-emerges

[GLF]

Grant will help team of researchers tackle cause and plan how to rid lake of oxygen-starved water.

The reappearance of a dead zone in Lake Erie has environmentalists perplexed because they're again attacking an issue largely thought to be resolved.

A dead zone, or an area of oxygen-starved water, covers as much as two-thirds of the bottom water in the lake's central basin, according to Donald Scavia, a University of Michigan professor in the School of Natural Resources and Environment.

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