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Great Lakes Article:

Environmentalists decry EPA lakes deal
United Press International

DETROIT -- Environmentalists charge the U.S. Environmental Protection Agency is hurting efforts to combat exotic, invasive marine species in the Great Lakes.

The EPA ruled ships do not need permits to discharge their ballast waters and that could mean more foreign species in state waters, Lake St. Clair environmentalist Doug Martz told the Detroit News.

Scores of exotic species of marine life, from plants and plankton to zebra mussels, have been introduced into the Great Lakes during the last couple of decades from the ballast water of passing foreign ships, the News said Sunday.

The zebra mussel, which clog water intake valves and wipe out native marine species, have cost the Michigan economy $1 billion over the last decade, the News said.

The EPA said last week it could not control ballast water discharge in the Great Lakes because there are too many commercial cargo and fishing ships to police.

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