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There's a single paragraph at https://en.wikipedia.org/wiki/Marine_current_power#Environmental_effects https://en.wikipedia.org/wiki/Marine_current_power#Enviro
by eesmith 4y ago
There's a single paragraph at https://en.wikipedia.org/wiki/Marine_current_power#Environmental_effects https://en.wikipedia.org/wiki/Marine_current_power#Environme... , with the core being: "While little is known about the effects of removing ocean current energy, the impacts of removing current energy on the farfield environment may be a significant environmental concern."
FWIW, I first heard about this approach in the 1980s, as a kid reading Popular Science.
PopSci has an article about it from 9 year ago, at https://www.popsci.com/science/article/2013-05/aqua-turbine/ https://www.popsci.com/science/article/2013-05/aqua-turbine/ but I couldn't find the one I read.