When I was an undergrad and graduate student, impacts were poo pooed by the crusty old curmudgeons that ran the show, and all that continental drift was clearly daft.
Scientific understanding advances like a glacier, quite slowly and the nonsense is eventually cast aside as some lateral moraine. So will be the remains of today’s climate change rantings in good time.
It has been said that new ideas don’t take hold because of their merit, but because their opponents die off. :’)