Reading Time: 7 minutes This is an article by Ethan Goffman for Greater Greater Washington. It is reposted here under a Creative Commons/CC BY-NC 4.0 licence. A pandemic induced shutdown is a harsh way to achieve cleaner air, but it has done just that. Air quality in DC is some 10 to 20% better than at this time last year, … Continue reading D.C. has cleaner air now. But as reopening plans continue, how can it keep the pollution at bay?