Climate change is making heat waves like the one that lingered over much of the U.S. this week more frequent and intense.

The Eastern U.S. sweltered under a heat dome in recent days, with some cities surpassing 100 degrees Fahrenheit.

Roads in Delaware, Wisconsin and Missouri buckled, while a Virginia bridge malfunctioned and dozens of people in places including Washington D.C. and North Carolina were reportedly hospitalized. In New Jersey, some 100 people were treated after attending outdoor graduation ceremonies in the extreme heat.

And while summer is always hot, man-made climate change is worsening the problem. Temperatures in parts of the country are set to soar again this coming week.

Megan Kirchmeier-Young, a research scientist at........

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