There is a significant difference from biology here; there really is *scientific* controversy as to how much if any global warming exists, how much if any people are responsible for it, its effects, and so forth.
On the other hand, there is no scientific controversy about the existence of evolution and the dominant role Darwin's theory plays in it. The evidence for not only the existence, but also for the detailed shape of the primate family tree, or the horse's, or carnivore's, or whatever's family tree, is much less ambiguous than the evidence that global warming is because of fossil fuel use.
And again, I'm not saying criminal/high crime penalties are appropriate for "promoting or believing" something, but that they are appropriate for public officials who try to force science teachers to lie to children
Do you really think this sticker mounts to a hill of beans ...
No, it's not as important as a lot of other things, like reading and math. But that doesn't make it unimportant. Teaching kids that politics can and should trump science, and telling them lies about what actual scientists think and do, is morally wrong. (Actually exposing them to politics trumping science may not be that bad, if you think kids should learn cynicism early and often)