What do you mean by 'very likely to be wrong' and 'not understood' (no scarecaps pls)? There are uncertainties, and there are still unanswered scientific questions, but the measured change in temperatures largely corresponds to the midrange predictions from climate models 20 years ago.

Don't mistake "I don't understand the science" for "the science behind climate change is weak". Go out, learn some coupled atmospheric modeling PDEs, and build a climate model yourself (Claude can help). It'll only take a few days. You'll learn a lot about what's known and the sources of uncertainty.