Climatologist: Climate change cranking up severity of heat waves, other extreme weather events

KYW Newsradio Audio On-Demand
Sunday, July 21st
As much of the U.S. swelters in dangerously hot temperatures, scientists say they expect heat waves to become more frequent, and a renowned climate scientist gave insight how a warming planet is affecting our weather. KYW Newsradio's Molly Daly has more. 
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