“Later studies estimated that at least 6.4 Mt of plastic litter enters the oceans every year; that some 8 million pieces are discarded every day; that the floating plastic debris averages more than 13 000 pieces per km2 of ocean surface; and that some 60% of all marine litter stems from shoreline activities.”

“Later studies estimated that at least 6.4 Mt of plastic litter enters the oceans every year; that some 8 million pieces are discarded every day; that the floating plastic debris averages more than 13 000 pieces per km2 of ocean surface; and that some 60% of all marine litter stems from shoreline activities.”

— Vaclav Smil