I don't think it's a given we can reverse or even stop climate change. There are many positive feedback loops going on right now.
AFAIK neither the Paris accords or any climate management proposals entertain the idea of stopping climate change.
Edit: positive feedback loops are things like the melting ice caps. Less sunlight is reflected back to space by the white ice which means more is absorbed by the dark sea. This causes the earth to warm and more of the ice caps to melt....
In climate science there is something called the tipping point. This is when mechanisms like positive feedback will make drastic climate change inevitable (with current technology).
When the tipping point will happen is up for debate. IMO the idea that we have already passed the tipping point is also up for debate.
