Kees van der Leun on Nostr: ~426.0 ppm: September average of atmospheric CO2 at Mauna Loa, estimated from daily ...
~426.0 ppm: September average of atmospheric CO2 at Mauna Loa, estimated from daily values. That's another ~1.7 ppm higher than last year.
September is the lowest point in the seasonal cycle, and we won't see a value this low (but extremely high) for many generations to come.
Published at
2026-10-01 19:58:56 UTCEvent JSON
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