Oil sands also create dirty waste product

One environmental concern about piping Canada’s oil sands to U.S. refineries is all the petroleum coke that will be left over from the refining process. The Environmental Protection Agency no longer allows new licensing permits for burning the high-sulfur, high-carbon waste product, the New York Times reported. As a result, most petroleum coke is sold to Mexico and China, which don’t have as many pollution rules. Companies associated with Koch Industries and Bill Koch are leading exporters of the product. Another concern is where to store the petroleum coke before it is exported. The Times reported on a three-story pile of petroleum coke that covers an entire city block in Windsor, Ontario, across the river from Detroit.