The new head of the Environmental Protection Agency on Sunday said the "real issue" is how much human activity affects the climate changing.

"There's a warming trend — the climate is changing," Scott Pruitt said on "Fox News Sunday."

"And human activity contributes to that change in some measure. The real issue is how much we contribute to it."

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Pruitt also questioned what can be done in response to the climate changing.

"What can we do about it?" he said.

"You can't just simply, from the EPA perspective, make that up. You can't do what the [former] president did, previously with the Clean Power Plan, President Obama and his administration, to simply reimagine authority."

Pruitt said carbon dioxide and methane contribute to global warming.

"The issue is how much we contribute to it from a human activity perspective and then what can we done about it from a process perspective," he said.

He said he thinks the country has "done it better than anybody in the world at burning coal clean, in a clean fashion."

"We have done better than anybody in the world at growing an economy and also being a good steward of our environment," he continued.

"We have nothing to be apologetic about. We're going to operate within the framework of the Clean Air Act and deal with these issues."

Pruitt also praised President Trump for keeping his promise to the American people to roll back executive overreach and blasted the Paris Climate deal as a bad deal for the country.