Human-caused climate change is unmistakably distinct from Earth’s natural climate variability

This is a re-post from Staying Curious by Dean Rovang This post presents two figures that are the culmination of an extended effort to build the strongest possible empirical case for what the paleoclimate record shows about CO? and temperature. They draw on five independent regression fits across four independent archives and 66 million years of geological evidence. The argument stands on its own merits. Earth’s natural climate relationship Figure 1. Earth’s natural CO?–temperature relationship