It is the peculiar human genius that we adapt our environment to ourselves, as well as the converse; we're not the only species on Earth which does so, but we're the only one for which adapting our environment is the keystone of a species survival strategy so successful that we have made ourselves, and for the foreseeable future will remain, the entire planet's apex predator.
Lately, we hear much of how this strategy is doomed to failure, of how such failure will come sooner rather than later, and of how anything less than its immediate and radical replacement will surely doom our species. I don't buy it for a second. That the developed world has some rough times ahead, I don't doubt. But we're smart apes, and mean, and tough to kill, and there are an almighty lot of us. Perhaps we're due a new dark age, and perhaps not. But if so, we'll come out of it eventually, and we'll be better and smarter still for it, just like we were last time.
Be it ever so popular of late, the belief otherwise is, in my considered opinion, born entirely of arrogance, in two parts: first, that even we have the capability to so radically reëngineer this planet as to no longer support our species, and second, that our species is somehow apart from nature, such that the axiom that all species not killed outright by them eventually adapt to changes of environment, somehow does not apply to us. That humanity is special, I happily agree, but we are not gods.