Environmental Protection Agency administrator Scott Pruitt admitted this week that global warming is occurring, but questioned whether climate change might not be good for humans. Pruitt was speaking on Las Vegas channel KSNV, which is owned by the Sinclair Broadcast Group.

Scott Pruitt: “Is it an existential threat? Is it something that is unsustainable? Or what kind of effect or harm is this going to have? I mean, we know that humans have most flourished during times of what? Warming trends. I mean, so I think there’s assumptions made that because the climate is warming, that that necessarily is a bad thing. Do we really know what the ideal surface temperature should be in the year 2100, in the year 2018? And that’s somewhat—you know, fairly arrogant for us to think that we know exactly what it should be in 2100.”

Researchers from the University of North Carolina have found that climate change will cause 260,000 deaths globally by 2100 through air pollution alone—while threatening the food supply of billions of people even as sea level rise inundates coastal cities around the planet.