The first large offshore wind farms in the United States are unearthing unexploded munitions from World War II, representing a potentially growing challenge for both developers and U.S. policymakers as the emerging industry anchors off America’s coasts.
While surveying the seafloor in the waters of Rhode Island’s Narragansett Bay in recent weeks, the Danish firm Ørsted found 11 unexploded weapons, prompting a warning to mariners by the Coast Guard.
“They range from 6-inch artillery shells to a 250-pound bomb,” said Ryan Ferguson, a spokesperson for Ørsted.
In addition to Ørsted’s discovery, a shipping crew earlier this month found one similar object at the site of Vineyard Wind’s planned 62-turbine wind farm off the coast of Massachusetts.
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