The pollution problems in New Delhi have been featured in the news a lot in the recent weeks. Thick smog blanketed areas of northern India, exceeding 10 times the recommended safe limit. Low visibility from the pollution has been blamed for an 18-car-pileup about 30 miles from New Delhi. Breathing the air has been likened to smoking 50 cigarettes in one day. Cold temperatures and slow winds have been blamed for the dangerous rise in pollution. – National Geographic
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