NOAA ESRL - January 2026 Atmospheric CO2 Content: 428.62 ppm; January 2025 426.65 ppm; January 2024 422.80 ppm

[hatrack]

https://gml.noaa.gov/ccgg/trends/

https://gml.noaa.gov/webdata/ccgg/trends/co2/co2_mm_mlo.txt

[Blues Heron]

1. Is it a blip or is it leveling off?

[hatrack]

2. Seasonally, it moves up and down with the northern hemisphere vegetation cycle; long-term however . . ..

[Blues Heron]

3. Right but the increase is half what it was last year

[hatrack]

4. Sure, there's variability on a month-to-month (and YOY) basis.

However, it's not enough to alter the overall annual trajectory, or the recent relative interannual increase in concentrations.



https://gml.noaa.gov/ccgg/trends/gl_gr.html

Additionally:

The WMO Greenhouse Gas Bulletin said continued emissions of CO2 from human activities and an upsurge from wildfires were responsible, as well as reduced CO2 absorption by “sinks” such as land ecosystems and the ocean – in what threatens to be a vicious climate cycle.

Growth rates of CO2 have tripled since the 1960s, accelerating from an annual average increase of 0.8 ppm per year to 2.4 ppm per year in the decade from 2011 to 2020. From 2023 to 2024, the global average concentration of CO2 surged by 3.5 ppm, the largest increase since modern measurements started in 1957.

“The heat trapped by CO2 and other greenhouse gases is turbo-charging our climate and leading to more extreme weather. Reducing emissions is therefore essential not just for our climate but also for our economic security and community well-being,” said WMO Deputy Secretary-General Ko Barrett.

EDIT

https://wmo.int/media/news/carbon-dioxide-levels-increase-record-amount-new-highs-2024

[Blues Heron]

5. A blip, but a blip in the right direction!