THE FOR­GOT­TEN THREAT OF SMOG

The world’s me­trop­o­lises are veiled in toxic fog, but en­gi­neers' most re­cent in­ven­tions mean that car's will emit lit­tle more than wa­ter, and power plant chim­neys will be rid of haz­ardous par­ti­cles, sav­ing 7.2 mil­lion ci­ti­zens from early death an­nu­ally.

Science Illustrated - - CONTENTS -

Global warm­ing is bad, but at least it isn’t dirty. Smog cre­ates filth, it clogs your lungs, and it kills. So why don’t we talk about it?

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