Rivers may gush under sullied skies

Air pollution can dim sunlight and curb evaporation

haze of pollution

NOT-SO-CLEAR SKIES  The haze of pollution may rein in evaporation, raising water levels in rivers like the Danube (shown), a new study concludes.

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Swollen rivers may be the unexpected fallout of billowing smog.

By intercepting sunshine and shading the Earth, polluting particles can stifle evaporation, leaving extra water to flood local waterways.