In his remarks, Reid referred to a 2013 study by the Political Economy Research Institute of the University of Massachusetts at Amherst — the Greenhouse 100 Polluters Index.

U-Mass. “ranked Koch Industries as one of the nation’s biggest air and water polluters, period. In one year Koch Industries released 31 million pounds of toxic air,” Reid said. “How much is that? It’s more than Dow Chemical, Exxon Mobil and General Electric combined emitted. They are the champions.”

Actually, the report lists Koch Industries at 24 million metric tons of greenhouse gas (CO2 equivalent emissions), which puts the company at 27th on the list, responsible for 0.36 percent of total greenhouse gas emissions in the United States. Exxon Mobil landed in 14th place, with 39 million tons, Dow Chemical was 44th with 15 million tons and GE was not on the list. Combined, those companies actually had more than double the emissions of Koch Industries.