The March 15, 2024, daily CO₂ at Mauna Loa, Hawaii, was 427.93 ppm, highest in the NOAA record, which even more remarkable since the annual CO₂ maximum is typically reached in May, so even higher values are likely to be reached over the next few months. https://t.co/p2ggISSntF pic.twitter.com/VYQfojtw1S — Sam Carana (@SamCarana) March 17, 2024 … Continue reading The Keeling Curve and 40 years of blah blah blah.