February 7, 2023 — Distant cousins of the machines that dotted the Dutch countryside to pump the ocean back into its bed, sentimentalized in art for 500 years, that have been slimmed down and redesigned in the 21^st century to fight global warming, will be hammered into the seafloor in glacial rock laid down 2.8 million years ago during the Pleistocene epoch.

Standing at a weird intersection of natural forces, human intervention, and climate disaster, windmills are now hip, and controversial.

But can wind turbines — what used to be windmills — off the coast of Rhode Island live up to their renewable energy promise? And what effects will they have on life in the sea?

Hundreds of experts from the U.S. Department of the Interior down to local fishermen and town planners are puzzling over these questions, especially now, during the permitting and approval process of the Revolution Wind project, in which developers Ørsted and Eversource hope to install up to 100 wind turbines on the Outer Continental Shelf (OCS) about 18 miles southeast of Point Judith. Cables to transmit power to the grid would make landfall in North Kingstown, and the project is expected to be online by 2025. The Draft Environmental Impact Statement for the project was published last fall.

Among the experts looking at the question of known and unknown impacts of an offshore wind facility on the OCS are marine biologists intimately familiar with the seafloor where the turbines would be. Sending cameras and other sophisticated monitoring machines 80 to 160 feet below the surface, these scientists examine the vast sand flats, some covered with sand dollars and northern star coral; the complex regions of cobbles and boulders; the lives of tiny, burrowing invertebrates; and the spawning habits of important commercial species such as cod and long-finned squid. They puzzle over the effects a wind project would have on the migration patterns of whales and other marine mammals.

Read the full article at ecoRI News