Well, Bridenstine has repeatedly said (in both personal conversation and public testimony) that he agrees that (a) Global Warming is happening, and that (b) it’s causing the climate to change, and © that humans and their emissions contribute to it.
He remains skeptical about just how much of the warming is anthropogenic rather than part of a natural cycle — which, in all fairness, is still a subject of discussion among scientists (though the general scientific consensus is “well, a heckuva lot of it, at any rate”) — and he remains skeptical about how much good can be done by undertaking more expensive, economy-hobbling carbon-emission reduction schemes, when we could better use the money and a robust economy to prepare for, and respond to, the inescapable Climate Change that WILL happen over over the next 50 years.
It’s possible that we’re already past some crucial tipping points, and serious climate change is coming no matter what we do.* We’ve already skied over the edge of the cliff, and all we can do is aim for something cushy-looking to break the fall a bit.
I don’t really share his doubts about the degree of human responsibility, but I am fairly convinced that serious climate change is coming no matter what we do, and we need to be preparing for it.
Which includes doing the science necessary to figure out, if we can, which way the dice will fall.
* The only real hope, at this point, for actually halting climate change is large-scale, completely untested geo-engineering schemes — whose unintended consequences could be worse than doing nothing at all.
