One of the simulation recently achieved with WITNESS shows that very well : if you consider the NetWorldGDP as the WorldGDP minus the climate change damages, the best options to maintain and increase the NetWorldGDP is a Net-Zero-Emission strategy !
When properly coupling climate damage on economy and population (which in turn impact economy), we see clearly that the cost of not reducing carbon emission actually cancel the faster World GDP growth we could have by saving investments in Net-Zero-Emission strategies for other purposes…

Details available browsing the online model computation, small explanation video on it’s way 😉