I agree, it's about human saving, not planet saving. However, you are wrong about the climate change being the end for humans. We will cope, but other species wont be so lucky...
Well maybe it coupd happen if we do not do anything to help our environment. Maybe now climate change can still be okay with us humans. But if it persist maybe this earth will going to be so hot that all the inventions cannot do anything. But it will be a thousand years to come so we will not experience that.
We are talking about terraforming now, that is really far in the future:P