Yes, but the bigger question I think is if the majority of humans on earth will adapt and also "how well". A lot of environmentalists are misled by the promise to save endangered species: we won't.

But can we save humanity from destroying our own habitats? That's why environmental measures for cleaner oceans, air, and living conditions matter. It's for us, and the other dying inhabitants of earth will benefit from this too.

Edit: Okay, yes we've saved endangered species before. When I was growing up, Brown Pelicans were endangered along California's coast and we turned that around. But we won't save all the frogs, and we didn't save the northern white rhino. That's my point.