The paper is here:
Using an empirical approach that provides a robust lower bound on the persistence of impacts on economic growth, we find that the world economy is committed to an income reduction of 19% within the next 26 years independent of future emission choices (relative to a baseline without climate impacts, likely range of 11–29% accounting for physical climate and empirical uncertainty). These damages already outweigh the mitigation costs required to limit global warming to 2 °C by sixfold over this near-term time frame and thereafter diverge strongly dependent on emission choices.
This speaks directly to the “it would cost too much to do anything” people — it’s a lot less costly to phase out fossil fuels than not.
Tell that to literally every corporation.
We have. Do. It’s been fifty years and, uh, not really a lot of progress there.