Dutch man Boyan Slat's Ocean Cleanup project is not working quite as it should. The system is moving too slowly to hold on to the plastic it collects in the Great Pacific Garbage Patch. But Slat is confident that this problem can be solved, he said on Twitter.
"Most aspects of concept have been confirmed (wind vaning, intercepting plastic, wave following) - it's just not moving fast enough yet. This is fixable", he said.