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Fort Smith/Fayetteville News | 5newsonline KFSM 5NEWS | Get the local news and weather where you live from 5NEWS. Covering Fort Smith, Fayetteville, Bentonville, and all of Northwest Arkansas and the River Valley.

How the heat vulnerability index helps communities

Accuweather's Dexter Henry looks at how research is helping New York and other cities reduce heat-related deaths.