From London to Delhi, How Dirty Air’s the New Tobacco: QuickTake

Oct. 2, 2019, 8:33 AM

From Beijing to Berlin, New Delhi to London, improving air quality is a matter of life and death.

The World Health Organization estimates that outdoor air pollution kills 4.2 million people each year. It leads to billions of dollars spent on medical care and missed work and causes widespread illness, particularly among the very young and the very old. It’s a problem that knows no borders, though it’s felt most severely in the developing worldand in cities. And it’s a challenge scientists increasingly see aligned to the fight against climate change, since both issues are — as the United Nations puts it ...

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