Oh, I see.
So I responeded:
When I said: "Lol. Air pollution?" I did not mean China did not have air pollution. I thought that should have been clear by my later Sesame Street analogy. When you compare genocide, forced steralization, and air pollution it is in comic orientation where you state the last thing as emphasis, where as air pollution is rather less sinister than genocide, or forced sterilization. The "one of these things don't fit with the others." quote.
It's kinda like saying there is a speacial hell reserved for pedophiles, republicans, and people who text in movie theaters.