For long periods the residents living near a pile of pet coke piled up in Detroit have complained about soot invading homes. Take a look at the video in this stunning video to see what they breathe.
The Pet Coke from this pile is also being combusted to make electricity at a power plant in Canada. Soot from the burning of mostly coal and diesel causes 34,000 premature deaths per year just in the USA and 2 million around the world.
Natural gas has impacts on the environment, but it emits no soot when combusted and saves lives when it displaces coal and diesel or pet coke. Coming to grips with the strengths and weaknesses of our energy choices is an uncomfortable exercise.