This brings up the interesting question of "how is this different from denying evolution"? The relevant question is, I think: if the theory turns out to be wrong, how hard is it to explain the data?
If the theory of evolution turns out to be wrong, there's a huge stack of data which we're going to have a very hard time explaining sensibly, including DNA evidence, observations of short-term evolution in certain living things, and the entire goddamn fossil record. Apart from "God put it all there deliberately to test us" there's no way to come up with an alternative explanation.
If the hypothesis that human CO2 emissions have a significant effect on the climate turns out to be wrong, then... well, the only actual data we need to come up with an alternative explanation for is a hundred-year modest overall warming trend (for which we can all easily think up a few alternative explanations). Everything else is just theoretical predictions.
If the theory of evolution turns out to be wrong, there's a huge stack of data which we're going to have a very hard time explaining sensibly, including DNA evidence, observations of short-term evolution in certain living things, and the entire goddamn fossil record. Apart from "God put it all there deliberately to test us" there's no way to come up with an alternative explanation.
If the hypothesis that human CO2 emissions have a significant effect on the climate turns out to be wrong, then... well, the only actual data we need to come up with an alternative explanation for is a hundred-year modest overall warming trend (for which we can all easily think up a few alternative explanations). Everything else is just theoretical predictions.