It will take even more to meet @WHO standards, but #China has made significant reductions — particularly in big cities — in #airpollution over the past 4 years. New analysis by Dir. Michael Greenstone in @UpshotNYT:
https://www.nytimes.com/2018/03/12/upshot/china-pollution-environment-longer-lives.html?action=click&contentCollection=upshot&contentPlacement=1&module=package&pgtype=sectionfront®ion=rank&rref=collection%2Fsectioncollection%2Fupshot&version=highlights …pic.twitter.com/PHa5JGDb57
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