Question Details
http://blogs.scientificamerican.com/observations/2013/05/09/400-ppm-carbon-dioxide-in-the-atmosphere-reaches-prehistoric-levels/
In how many months in 2025 will the CO2 value be below 426 ppm ?
Josef Biesenberger in
Science
» Environment
currently Open, suspends 01/06/2026 22:10 (in )
Predictions
Background
latest data ppm (parts per million):
http://www.esrl.noaa.gov/gmd/ccgg/trends/mlo.html#mlo
Growth rate:
https://gml.noaa.gov/ccgg/trends/gr.html
Monthly data:
https://gml.noaa.gov/webdata/ccgg/trends/co2/co2_mm_mlo.txt
for comparison:
# decimal monthly de-season #days st.dev unc. of
# date average alized of days mon mean
2024 1 2024.0417 422.81 422.51 27 0.70 0.26
2024 2 2024.1250 424.55 423.64 22 1.24 0.51
2024 3 2024.2083 425.38 423.95 22 0.99 0.40
2024 4 2024.2917 426.51 424.02 22 0.99 0.40
2024 5 2024.3750 426.90 423.66 29 0.76 0.27
2024 6 2024.4583 426.91 424.48 20 0.65 0.28
2024 7 2024.5417 425.55 425.11 24 0.69 0.27
2024 8 2024.6250 422.99 424.84 22 1.08 0.44
2024 9 2024.7083 422.03 425.43 18 0.41 0.18
2024 10 2024.7917 422.38 425.66 22 0.35 0.14
2024 11 2024.8750 423.85 425.86 24 0.33 0.13
2024 12 2024.9583 425.40 426.12 28 0.70 0.25
https://de.co2.earth/daily-co2
article: http://www.climatecentral.org/news/co2-milestone-400-ppm-climate-17692
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