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CNN  — 

Democratic Sen. Mark Kelly on Sunday leaned into his experience as an astronaut to call for climate crisis action amid a blistering heatwave across the United States, including his home state of Arizona.

“When I went into space four times, I mean, I could see how thin the atmosphere is over this planet. It’s as thin as a contact lens on an eyeball, and we have got to do a better job taking care of it,” Kelly told CNN’s Jake Tapper on “State of the Union.”

“I have not seen in my time in the Senate many folks that deny that the climate is changing. That was a thing of the past. Now is: What do we do about it? We passed the Inflation Reduction Act, which is a big down payment on reducing the amount of carbon we put up into the atmosphere. That will make a difference over time. We obviously have to do more,” he added.

As the climate crisis ratchets temperatures higher and higher, scientists have warned there’s a growing likelihood that 2023 could be the Earth’s hottest year on record. Heat kills more Americans than any other form of severe weather, including fl