Many of us have seen a garbage truck (or hundreds!). Many of us have seen garbage trucks with automatic arms that reach out and grab the bin right off the curb. How many have seen a garbage boat, with it's automated arms and conveyor belts to clean up the sea?
This boat in Baltimore had a large task, but managed to pull quick a bit of debris from the water before it floated out to sea.
I am not sure it's the best solution, but it certainly was doing a decent job of collecting the floating trash.