It's getting hot out there, and by there I mean pretty much everywhere.

Well, record heat is on the way for much of the nation.

By the weekend, 19 states in Washington, D.C. will see record high temperatures.

India and Pakistan still enduring a heat wave, an unseasonable march with India's hottest

ever.

Millions are suffering in the Pacific Northwest as a stalled out heat dome drives temperatures

to historic and dangerous numbers.

Christie E.Bye is a professor of global health at the University of Washington.

Her research focuses on the health risks of climate change.

Last summer, she lived through the heat wave in the Pacific Northwest.

There's all kinds of stories around here, an EMT, burnt his knees, kneeling on a sidewalk

trying to help somebody that had fainted.

The emergency department's looking for ways to cool people down when they came in with

extraordinarily high body temperatures.

People would come in and put them into a body bag with ice to cool them down.

And one of the emergency departments almost ran out of ice.

They weren't ready for this event.

Overall, we were really lucky that everything hung together as well as it did.

Heat waves have become much more common in major U.S. cities over the last few decades.

From an average of two per year in the 1960s to six per year in the 2010s, global temperatures

are also rising steadily at a pace of around 0.17 degrees Fahrenheit per decade since 1901.

That might sound small, but in climate science, it's a lot.

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