> For the complete documentation index, see [llms.txt](https://docs.basin.global/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.basin.global/protocol/incentives/co2-ppm-keeling-curve.md).

# CO2 PPM - Keeling Curve

## Latest Reading: 424 ppm

*as of 3/5/24*

<figure><img src="https://3870597334-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrTwmQvuiPojTS0hu8LkS%2Fuploads%2FInOj3P6SepJVKHAJXRBz%2Fimage.png?alt=media&amp;token=fca176dd-a155-40d1-9db1-306b3e69815d" alt=""><figcaption><p><a href="https://keelingcurve.ucsd.edu/">https://keelingcurve.ucsd.edu/</a></p></figcaption></figure>