unknown. At the current rate of CO2 emissions to the atmosphere, average global temperatures will be 1.5 degrees celsius and 2.0 degrees celsius above preindustrial levels in 10 and 20 years, respectively
https://www.spp-antarktisforschung.uni-rostock.de/en/research/projects/current-projects/geological-sciences/translate-to-english-klages-2022/