We know that, but it doesn't change a thing. Your or my opinion has little influence. Therefore baby steps should be taken which will reduce that cost.
Why baby steps vs radical technological innovation?
We waste our time with virtual signalling nonsense, that hurt the least affluent here, whilst China/India/Africa are going to be outputting vastly more CO2 to make any of our efforts net-irrelevant to climate change.
We need to fix it for the world. That'll require big-impact innovation.
