Here's where we are headed at present I think, just a question of how fast: > "Carbon dioxide concentration during the mid-Pliocene has been estimated at aroun

Here's where we are headed at present I think, just a question of how fast: > "Carbon dioxide concentration during the mid-Pliocene has been estimated at around 400 ppmv... However, the global average temperature in the mid-Pliocene (3.3 Ma–3 Ma) was 2–3°C higher than today, global sea level 25 meters higher, and the northern hemisphere ice sheet was ephemeral before the onset of extensive glaciation over Greenland that occurred in the late Pliocene around 3 Ma." (pliocene climate wiki) This article is paywalled but it essentially looks to be very similar to an open-access paper (2020) by the same research group. The permafrost and soil carbon feedbacks under different scenarios (Fig 3) are worth looking at: https://gmd.copernicus.org/articles/13/3571/2020/ https://gmd.copernicus.org/articles/13/3571/2020/ Realistically, the only things that would noticeably slow the current climate trajectory over the next 100 years are major supervolcanoes or asteroid impacts. Hence, adaptation to new regional climate norms is going to be necessary. However, continuing to burn fossil fuels at current rates for the next 100 years would accelerate that trajectory somewhat and have major consequences for the 2100-2200+ timeline.