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hatrack

(65,333 posts)
Sun Jun 21, 2026, 11:19 AM 5 hrs ago

Mauna Loa - Since The Week Starting 3/22 Through The Week Starting 6/14, We Have Been At/Above 430 ppm CO2

The only exception is the week starting May 3rd, for which data are missing.

The only outlier was the week beginning February 22nd, which was 430.17.

https://gml.noaa.gov/webdata/ccgg/trends/co2/co2_weekly_mlo.txt

It's a long file, so just Control/End to jump to this year's results.

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Mauna Loa - Since The Week Starting 3/22 Through The Week Starting 6/14, We Have Been At/Above 430 ppm CO2 (Original Post) hatrack 5 hrs ago OP
sorry justaprogressive 5 hrs ago #1
350 ppm in the rear view mirror 😑 biophile 5 hrs ago #2
Oh, yeah - guesstimating that we'll be past 450 by 2040 at the latest . . . hatrack 4 hrs ago #3
😟 biophile 4 hrs ago #4

hatrack

(65,333 posts)
3. Oh, yeah - guesstimating that we'll be past 450 by 2040 at the latest . . .
Sun Jun 21, 2026, 11:33 AM
4 hrs ago

Maybe a little earlier, depending on unanticipated feedbacks.

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