They do work on cleaning up rivers as well! Check their Interceptors. https://theoceancleanup.com/rivers/ https://theoceancleanup.com/rivers/ Also, the ocean

They do work on cleaning up rivers as well! Check their Interceptors. https://theoceancleanup.com/rivers/ https://theoceancleanup.com/rivers/ Also, the ocean garbage does need cleaning up too