I watched the video of the press conference on SROCC. What he said is that if the CC deniers delay the changes needed to halt climate change, it’s going to cost many times the amount needed to fix the mess later.
“… Over time, paying for climate related damages is much more – several fold more – expensive than increasing investments into renewables, into technologies that support rapid reduction of emissions. And considering this comparison should be a strong motivation to find the right path into the future.”
— Hans-O. Pörtner
Co-chair of the IPCC Working Group 2
This was from this video in his reply to a question.
https://youtu.be/JYFMCU8L0zU