
United Nations @UN
#COVID19 lockdown & travel restrictions led to a dramatic, short-lived fall in pollution emissions, but improvements were not evenly spread & many parts of the world still fell short of air quality guidelines. More from @WMO: https://t.co/sMJ28YeMVu #ClimateAction https://t.co/MOHMxJtnR3 — PolitiTweet.org