EPA, states, and industry, working together, have made important strides in addressing the adverse impacts of fossil fuel combustion by the electric power industry since the passage of the Clean Air Act in 1970.
Industry, states, and EPA never managed to work together.
mnli hypothesis: Industry, states, and EPA never managed to work together. premise: EPA, states, and industry, working together, have made important strides in addressing the adverse impacts of fossil fuel combustion by the electric power industry since the passage of the Clean Air Act in 1970.