Oil City river oil transport and pollution

If you looked at the environment in Oil City, it's just down the river from Titusville, Pennsylvania, where in 1857 Edwin Drake discovered oil. Do you know how they transported the oil from Titusville to Oil City? They just floated it on the river, and they'd skim it off at the other end. So the rules have changed. Some of you look a little surprised — well I bet you are surprised, because today if you see an oil sheen on the water, you know they're going to bring out all the environmentalists and people will start having a fit. Well in Oil City they just skim it off, because that was part of work. So the environmental rules have changed over the years, and this lower picture is actually from one of the oil slicks from the BP Horizon leak.