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Fewer Invasive Species Reach the Great Lakes, but Those Here Continue to Spread
Scientists, Regulators and Industry Representatives Debate if Ballast Water Treatment is an Option By Jim Malewitz, Sarah Whites-Koditschek More than $375 billion in cargo — iron ore, coal, cement, stone, grain and more — has flowed between Great Lakes ports and foreign nations since 1959. That’s when Queen Elizabeth and U.S. President Dwight D. Eisenhower…