Harbors Threatened by Dredging Backlog
Ann Arbor, MI
Michigan Radio – The Great Lakes form a sprawling ecosystem of nature and industry. In a strong economy, ships can transport up to 200 million tons of cargo across these waters each year. But now the shipping industry has declared a state of emergency. Kate Davidson reports the cause is a region-wide dredging backlog. Shippers worry sediment buildup threatens to choke some navigation channels.
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