@violetmadder @pleaseclap @simon_brooke @SallyStrange the alternative to attempting to answer a question is to not attempt to answer the question. This is an important question. So, attempting to answer it is important.
The model assumes linear costs of climate change (e.g., a 2 degree increase causes twice the damage of a 1 degree increase). This is not correct, but improvements can be (and have been) built off the underlying framework.
Again, this is all radical compared to actual policy.