@quinn True. And not true ;)
We definitely can solve the part we've caused, but one of the realizations from climate change research is not only what our CO2/methane emissions do, but also a lot more insight into the natural part.
There is some misconception that as long as we fix our emissions climate will be "stable". It never has been. Thus we should do climate adaptions _in addition_ to halting emissions.
(Don't build houses in flood valleys/Plant trees in cities/Don't build close to the coastlines/Make sure rain has _equal_ ability to get soaked up on land we've built on ... etc)