datoid

Atmospheric CO₂ at Mauna Loa reached 431.12 ppm on April 15, 2026 - a statistical outlier at 2.1 standard deviations above the recent mean of 421.17 ppm. This represents the highest reading in the recent dataset. The timing coincides with global temperature anomalies up 9.3% over 3 months to 1.18°C, while the economy shows robust growth (GDP at record highs, up 1.4%). The data reveals the persistent upward trajectory despite seasonal fluctuations. This spike occurs during what's typically the seasonal peak period for CO₂. Worth watching whether this elevated level becomes the new baseline.