During the first year of the Covid-19 pandemic, the world’s economy slowed. Yet, the global annual average particulate pollution (PM2.5) was largely unchanged from 2019 levels. At the same time, growing evidence shows air pollution—even when experienced at very low levels—hurts human health. This recently led the World Health Organization (WHO) to revise its guideline … Continue reading Most of the World Breathes Unsafe Air, Taking More Than 2 Years Off Global Life Expectancy
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