TRAVERSE CITY, Mich. – The debate over how to protect the Great Lakes from voracious Asian carp appeared no closer to settlement Tuesday following release of a federal report with options that could cost billions and require extensive re-engineering of Chicago’s busy waterway network.
Wrapping up a study that began in 2009, the U.S. Army Corps of Engineers put forward eight options for preventing the carp and other invasive species from slipping between the Great Lakes and Mississippi River watersheds. The choices range from doing nothing new to undertaking massive construction projects to separate the two systems.
Government officials, scientists and advocacy groups agree on the need for fast action to prevent bighead and silver carp from gaining a foothold in the Great Lakes, where they could destabilize ecosystems and a $7 billion fishing…
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