The Great Lakes shipping industry is stepping forward to find a way to kill invasive species hitch-hiking from foreign ports in the ballast water of ocean ships. Mike Simonson reports that ports from all Great Lakes states and provinces have signed on…
Stay informed on the latest news
Sign up for WPR’s email newsletter.
Wisconsin Public Radio, © Copyright 2025, Board of Regents of the University of Wisconsin System and Wisconsin Educational Communications Board.
