I suppose there is room for some question about whether global warming is even partially manmade. After all, scientists say, the entire globe once was a spinning molten mass.
Then, most of the northern hemisphere was blanketed in miles-deep ice. Next it became warm enough to reliably grow crops while encouraging some of its human inhabitants to, at least part of the year, wear warm clothing. So it’s getting a little warmer. What’s the big deal?
Of course, it does seem a little incongruous that certain politicians would exhort their compatriots to believe science, and then legislate denial of science that says the earth is becoming warmer and humans are helping it happen.