Researchers sound alarm after discovering hidden danger lurking in winter snow: 'It's a triple whammy'

Researchers sound alarm after discovering hidden danger lurking in winter snow: 'It's a triple whammy'

Winter snow may look pristine, but scientists warn it can unleash a dangerous mix of hidden pollution when temperatures rise, the New York Times reported. What's happening? Scientists are drawing attention to a pollution problem that stems from snowy winters.  Pollution — from car exhaust to road salt and microplastics — accumulates in snow when it blankets city streets.  This is bad news for local waterways, which absorb a concentrated dose of …