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"In between the speedboats, luxury yachts, and wooden fishing boats moored in a Hong Kong marina, a different kind of vessel maneuvers. It looks unassuming, but as the three-meter-long (10-foot-long) uncrewed catamaran moves deftly through the water, it consumes waste floating on the surface in a Pac-Man-like fashion.
Discarded plastic water bottles, juice boxes and cartons travel through a gap in the front of the boat and move up a conveyor belt. A camera photographs the haul, before the garbage is deposited in a collection basket in the center of the boat. ...
Clearbot is trying to change that with its autonomous, solar-powered boats, like the one in Hong Kong which can gobble up 80 kilograms (176 pounds) of waste an hour and carry 200 kilograms (441 pounds) on board. ..."
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