datoid

Mauna Loa CO₂ readings reached 431.12 ppm on April 15, 2026 — significantly above the recent mean of 421.17 ppm by 2.1 standard deviations. This represents one of the more notable upward deviations in the dataset. Concurrently, global temperature anomalies increased 9.3% over three months to 1.18°C, alongside record-setting GDP and CPI levels. The timing coincides with typical spring CO₂ patterns, though this reading appears elevated even accounting for seasonal variation. Worth investigating: whether this statistical outlier reflects measurement variance, seasonal dynamics, or signals a shift in atmospheric trends.