I'm going to take some heat for this... An individual spill is probably similar to that analogy, except it doesn't take into account how interconnected the oceans are. If it was just an individual spill, it wouldn't be an issue. Just like if only one person littered, and no one else did, or if there was only one bad driver on the road ever. Damaging one area has consequences all over the world, and combined with everything else we do, it all starts to add up. One of the largest collection of garbage is floating in the Pacific Ccean. We've successfully over fished large swaths of it. In the 1880s English fishing fleets brought in 300,000 tons of fish, as of 2010, English fleets netted 150,000 tons of fish. Telegraph There's a corollary between international fishing fleets of the coast of Africa and the rise in poaching and bush meat sale in African villages. Some of the species in the oceans traverse thousands of miles, and we know almost nothing about them. Fishing grounds on the eastern coast of Canada have collapsed, and international fleets sweep the coasts of Africa every year. Whole tracts of the ocean floor in the Gulf of Mexico are barren. And there are whole zones of the Gulf that are dead due to algae blooms from fertilizers coming in from the Mississippi. The Exxon Valdez spill STILL hasn't been cleaned up. Most of our oxygen comes from sea algae. The whole planet depends on a healthy ocean, but we want to barge in like a bull in a china shop, without even a decent grasp of what's occurring? We're like children who've found daddy's loaded gun, and don't have Scruit's cameras to catch us before we do something stupid. Or we're like Donnie from The Big Lebowski. Take your pick.