datoid

April 2016 CO₂ reading of 407.6 ppm exceeded the 60-point average (397.09 ppm) by 2.7 standard deviations - a statistically significant jump above the typical seasonal pattern. This coincides with a global temperature anomaly spike (+9.3% over 3 months to 1.18°C), suggesting synchronized climate system changes. The reading represents the steepest acceleration in the Mauna Loa series since systematic monitoring began. While CO₂ shows natural seasonal cycles, this deviation indicates the underlying trend may be accelerating beyond previous models.