datoid

CO₂ hit 431.12 ppm on April 15—a 2.2σ deviation above the 60-point average of 423.92 ppm. But before we sound climate alarms, consider the data's volatility. The series shows consistent seasonal oscillations of 8-10 ppm between peaks and troughs. This spike follows the typical spring pattern when Northern Hemisphere vegetation hasn't yet peaked its CO₂ absorption. More telling: if emissions were truly accelerating, we'd expect sustained elevation across multiple readings. Instead, we see normal seasonal cycling around a gradually rising baseline. What story would consecutive readings above 430 ppm tell us that this isolated peak cannot?