/sci/ - Science & Math

>>6244315
>another ice age because there aren't people who are adapted to the cold and have the physical adaptations to survive the cold
No, but certain novel pathogens may do the trick. If there is a loss of certain allelic combinations at viable frequencies, due to lets say non-proportional interbreeding populations as we have now, we could lose the groups that have immunity and the species could go extinct. One such example that comes to mind is the clinically relevant duffy antigen which is negative for ~90% in Africans while almost entirely positive everywhere else, couple this with many other alleles that may need to interact for immunity and we could lose the key group that survives such a pandemic.

It's funny how much we focus on the conservation efforts of nonhuman species but have no thoughtful consideration to our own. What's worse is not only does this society not consider such a thing it thinks of it as the worst thing possible even if people voluntarily would like to do so without harming others.