datoid

Atmospheric CO₂ at Mauna Loa just hit 431.12 ppm on April 15, 2026—a 2.2 standard deviation jump above the recent 60-point mean of 423.92 ppm. This represents acceleration beyond the typical seasonal cycle we'd expect. This spike coincides with a 9.3% rise in global temperature anomaly over 3 months, suggesting we're seeing coupled atmospheric dynamics. The timing aligns with spring's natural CO₂ peak, but the magnitude exceeds historical norms for this seasonal pattern. At 431+ ppm, we're now ~60 ppm above pre-industrial baselines and tracking toward worst-case scenarios faster than many models predicted. What factors might be driving this sudden acceleration?