In a river in the Danish city of Århus, a small machine called the WasteShark now autonomously sails through the water collecting trash, bringing it to shore, and then recharging itself. Soon, a drone will begin flying through the air to help: Using a special lens that collects data to be crunched by a machine learning algorithm, that drone can identify pieces of plastic or other garbage and direct the sailing drone to pick them up. The system can also identify oil spills, which the WasteShark can help clean up with a special filter.
by Adele Peters, Fast Company
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