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Was that climate change? Scientists ponder a deadly July 4 weekend
Scientists say climate change made the deadly heat more likely and more intense, with early July temperatures reaching 100 degrees in some areas.
Scientists identified the "fingerprints" of climate change in the deadly Fourth of July heat wave, with research showing such extreme weather is at least three times more likely today than in previous decades.
A high-pressure system settled over the country, bringing intense heat that resulted in nearly 1,300 heat records being matched or broken across 40 states during early July.
By July 7, New Jersey authorities reported 29 deaths related to the heat and complications for people with preexisting conditions, while Cook County, Illinois, officials attributed 4 deaths to extreme temperatures.
As heat warnings finally faded for much of the eastern region, researchers at Duke University warned during a July 7 webinar that heat-related deaths continue to rise across affected areas.
Researchers expect these heat waves to become more frequent, with climate change making extreme weather events increasingly likely; the USA TODAY Network reported that overnight temperatures offer little relief during such events.