All set for ballast-off

Approximately 10 billion m3 of ballast water is moved around the world each year in the course of maritime commerce.


* Currently, about a dozen nonindigenous species (NIS) transplanted by ballast waters are causing major damage by clogging water intakes, destroying river banks and dykes, and crippling fisheries.

* The zebra mussel, which hampers water cooling at power plants on the Great Lakes, causes $1 billion a year of damage in the US alone.

* The International Maritime Organization (IMO), federal and state ...

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