Pandemic lockdowns improved air quality in 84% of countries worldwide, report finds - CNN

1. Pandemic lockdowns improved air quality in 84% of countries worldwide, report finds  CNN
2. Smoke from wildfires wiped out the U.S. pandemic-related clean air gains in 2020  Washington Post
3. Air Pollution Plummeted During the Pandemic, Except in Areas With Wildfires  The Wall Street Journal
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