> ... and major die-offs of some marine organisms followed due to strong acidification of the oceans. This is the part that I'm worried about. Regardless of wh

> ... and major die-offs of some marine organisms followed due to strong acidification of the oceans. This is the part that I'm worried about. Regardless of what happens to global temperature or climate, the damage we've done to the oceans is insane. As Alex Cannara explained[1], In 150 years we have brought the chemistry of oceans to a point not seen in 300 million years. He is referring to the large shift in ocean pH caused by our release of over 30x the amount of carbon than the ocean can sequester. This is particularly bad problem because the process that sequesters atmospheric CO2 is based on marine life shells/skeletons being sinking and ending up as limestone. We have already disrupted that process, with some areas (such as the north Atlantic) are already seeing species starting to fail from the acidity. At some point in the next few decades, the pH will be sufficiently acidic that CaCO2 becomes soluble and any species with a shell goes extinct. Never mind the massive food change disruption, this stops the main CO2 sequestration process. I don't think we can stop this; it's already too late. While there are ideas about how this could be fixed, we aren't going to accomplish any of them. So maybe we should start getting ready for another event like the Permian–Triassic (P-Tr) extinction. [1] https://www.youtube.com/watch?v=wtQxF_3BSxQ https://www.youtube.com/watch?v=wtQxF_3BSxQ