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Battling Urban Pollution Is Also About Wealth

Cities’ clean-air challenges tend to reflect their economic characteristics

The fight against pollution isn’t just about pollution, it’s also about wealth, according to Bloomberg New Energy Finance. Tighter-packed and lower-income cities such as Kolkata and Jakarta suffer more from dangerous levels of particulates, while spread out, better-off locations such as Los Angeles and Auckland -- with high levels of private-vehicle ownership -- are more likely to need to tackle greenhouse gas emissions.

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