I agree and we can't stall because of uncertainty we have to move forward on the basis of the best knowns now.

What I would say though we do have a lot of the analytic and scientific tools in place to assess these kinds of impacts and sadly we are quite far away from t being applied consistently. Even adaptation gets barely any funding and political focus and it gets less and less as you move to other related issues like biodiversity loss or the other planetary boundaries we are crossing. Part of the reason for that is that Climate Change is still being largely treated as a technical/technological challenge (switch this technology and the problem goes away) rather than the challenge to the whole economic and culture systems of the world that it is.

Need a systems view to be embedded or we run the real risk of pushing the problems around rather than solving.