More Great Lakes ports tracking greenhouse gas emission
Associated Press
MADISON, Wis. — A recent report finds around one-third of participating ports in the United States and Canada, including those in Duluth and Milwaukee, are keeping a detailed inventory of greenhouse gas emissions.
The tracking is part of the Green Marine environmental certification program, Wisconsin Public Radio reports . The voluntary effort was formed in 2007 for the Great Lakes and St. Lawrence Seaway.
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