It doesn't matter how quickly we put carbon in the atmosphere. It has a 200 year effect - taking 60 more years versus 20 is meaningless if you end up putting it

It doesn't matter how quickly we put carbon in the atmosphere. It has a 200 year effect - taking 60 more years versus 20 is meaningless if you end up putting it all up there anyway. The only difference would be how soon we suffer the worst effects - it's too fast for adaptation in nature for most evolutionary or migratory processes either way. I suppose you could hope for a technological silver bullet but that's effort made while dealing with a much more costly carbon economy. Also, we should really avoid the worst effects. Even the middling effects are pretty awful.