Environmentalists Oppose Residue of Tar Sands Oil Refining in Their Community

Detroit, Michigan - Environmentalists and residents of southwest Detroit oppose the dumping of petcoke in their community. Petcoke (petroleum coke) is the residue after Canadian tar sands oil is processed at the nearby Marathon Petroleum refinery. Koch Carbon, a company controlled by Charles and David Koch, owns the material, which is piled along the Detroit River where opponents say it can pollute the air and water.