Meet Mr Trash Wheel – and the other new devices that eat river plastic

From ‘bubble barriers’ to floating drones, a host of new projects aim to stop plastic pollution before it ever reaches the oceanThe Great Bubble Barrier is just that – a wall of bubbles. It gurgles across the water in a diagonal screen, pushing plastic to one side while allowing fish and other wildlife to pass unharmed.The technology, created by a Dutch firm and already being used in Amsterdam, is being trialled in the Douro River in Porto, Portugal, as part of the EU-supported Maelstrom (marine litter sustainable removal and management) project. Continue reading...

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