How can we prevent solid waste from getting into the world's oceans
Stop dumping them in ocean.Take measures to dump them away from ocean.
produce less for one .
We cant. Too many ship wrecks and waste barges that fail. The only way to fix the problem is to do away with the human race.
It's hard to do, storm drains can and do carry waste to the ocean. A lot of times like in older cities they work with the tides carrying solids to ocean. Just be cognizant of what you throw out and show some concern.