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19 Cities Including London, San Francisco, Hong Kong Achieve ‘Remarkable Reductions’ in Air Pollution
In a report that examined the air quality of 100 global cities, 19 were found to have substantially improved since 2010. 9 of the 19 were in China and Hong Kong, while the rest were located in Europe, and include both large and small cities. In the US, San Francisco managed to reduce both health-harming […]
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