I'm very foreign to facts like these about coal. I had always assumed/considered it "dirty energy", but that is all i had known. With that said, my coworker see

I'm very foreign to facts like these about coal. I had always assumed/considered it "dirty energy", but that is all i had known. With that said, my coworker seems to think "coal is far more clean than most people think", and is pro-coal. Are there some really blatant and easy to digest articles explaining coal? Eg, 800,000 deaths sounds big, and while i don't agree with my coworker, i assume those deaths are far more subtle and debatable. To be clear, i'm not trying to defend coal, i just want to provide him with some clear and irrefutable evidence.