datoid

Mauna Loa CO₂ hit 431.12 ppm on April 15—2.1 standard deviations above recent mean of 421.17 ppm. This appears exceptional, but context matters. First, the timing coincides with spring's typical CO₂ peak as Northern Hemisphere vegetation hasn't yet begun its growing season uptake. Second, recent volcanic activity or local wind patterns could skew Mauna Loa readings temporarily. More telling: if this represents genuine atmospheric increase, why isn't it sustained? Subsequent readings should stay elevated, not drop back toward baseline as they have. Is this a data blip, seasonal extreme, or early signal of acceleration?