Kind of a shitpost fyi, but since all humans initially had dark skin (more melanin) and only slowly got fairer skin (less melanin) in regions with less UV radiation in the northern hemisphere, would this also be reversable?

How long does it usually take to see these changes in mammals? Probably thousands of years right?

I mean it would kind of solve racism if we don't have a political system by then that treats all humans like humans.

Please don't take this post too seriously I just had this idea of a white supremacist having an identity crisis due to having more darker skinned children because of climate change haha (Insert some joke about Yakubian apes here)