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Air quality briefly improved in 2020 due to COVID lockdowns, UN agency confirms
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09-07-2021, 11:31 PM
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Air quality briefly improved in 2020 due to COVID lockdowns, UN agency confirms
 The UN*weather agency says the world — and especially urban areas — experienced a brief, sharp drop in emissions of air pollutants last year amid lockdown measures and related travel restrictions put in place over the coronavirus pandemic.More...
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