You're making up that scenario in your own head. The US isn't telling China anything about pollution based on this sattelite. Trust me, China already knows how

You're making up that scenario in your own head. The US isn't telling China anything about pollution based on this sattelite. Trust me, China already knows how awful their air quality is and they are doing something about it themselves. This just gives China one more data point they can use to make life for their own citizens better.