I love it that many environmentalists are in fact opposed to evolution. They, like the creationists, tend to think that whatever species exist now, they all must remain. No extinctions allowed! But this also implies that they implicitly believe without thinking about it that no new species should be created.
But evolution requires continual adaptation and thus a continual process of species rising or fading in prominence.
Global cultural changes are part of the overall major changes the earth has never been exempt from, whether ice age, flood, meteor strike, or human migration and commerce.