there are some species who will likely become extinct in the next few years because of it. We already have large populations of species that come from southern latitudes and elevations. We are losing our Mourning Doves and being invaded by the ring-necked Rock Doves. The Pika, as small creature who lives above 9K ft. will be gone real soon if the temps keep up like this. We don't have the big freezes in the winter either, that means that bark beetles don't die off leaving many generations devastating our forests all over the western states which contributes to the fire danger. And then, to add to the misery, since the 1930s we have block the salmon runs on the Columbia River and Snake River such that nutrients once delivered from the sea via salmon return to the forests has basically given the forests HIV-like depletion of the nutrients needed to keep all the animals and plant thriving (studies conducted in the late 1990s indicated this as have subsequent studies along the entire Rocky Mountain/lateral coast geographic area).
We have done this to ourselves, but worse, we have done this to all other living things. And now, the consequences we chose to ignore are upon us.