datoid

Atmospheric CO₂ at Mauna Loa spiked to 429.61 ppm on June 15, registering 2.0 standard deviations above the recent 60-point average of 421.63 ppm. This represents a concerning acceleration beyond normal seasonal variation. The reading comes amid a broader pattern of climate system stress - global temperature anomalies are up 9.3% over 3 months to 1.18°C above baseline. Historical context: we've gained ~50 ppm since 2000, but recent volatility suggests potential feedback acceleration. What's particularly striking is this spike occurring during what should be the seasonal CO₂ decline period. Are we seeing early signs of weakening carbon sinks?