It would surprise me if nets at the mouths of rivers didn't royally screw up the wildlife and/or boat traffic. And what do they do with that plastic they trap? The root problem is those societies have no better way to dispose of plastic than letting it drift to sea. Proper waste collection and disposal services are far preferable to installing a net and telling everyone, "Yo it's ok to throw all your trash in the river now."

This startup is long on hype and has zero results. Ok they spent tons of money to collect a few lbs of trash. The CEO was on Joe Rogan last month telling everyone he was going to clean up half the patch in 5 years (not even sure what that means since it's constantly growing). How much did those ships cost to run per day though? $50k. So he doesn't even have a working POC if you factor in costs. He's just out there on a premature victory tour, doing more harm than good by convincing people that someone else has solved the plastic problem for them. What a hero.