Good point. It seems a global approach will be needed, which means we need to lead the way and pay more: https://www.npr.org/sections/thetwo-way/2017/03/03/5183

Good point. It seems a global approach will be needed, which means we need to lead the way and pay more: https://www.npr.org/sections/thetwo-way/2017/03/03/518323094/rise-in-smog-in-western-u-s-is-blamed-on-asias-air-pollution https://www.npr.org/sections/thetwo-way/2017/03/03/518323094...