Nestled in a valley in central Chile, near lakes and snowcapped mountains, sits one of the world’s mostpolluted cities.Every winter, sleepy Temuco plunges to the bottom of global air quality rankings. While notoriouslypolluted megacities such as Beijing and New Delhi have populations almost 100 times that of the tinyChilean town, contributing to round the clock traffic and factory activity, Temuco’s contamination doesn’tcome from economic activity. It comes from poverty.
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