State of beachs becoming very bad in tropics. Plastic is much worse than is being reported currently. If plastic traps algea from the ocean due to it’s oily consistancey there could be much worse problems. Lookup oxygenisation of the world and ocean algea. Also, see link:
https://www.google.com/search?q=trinidad+beaches+plastic
I should note that Trinidad and Tobago people work hard to clear their beaches, but it is where this comes from that is the problem.