NOAA GML Mauna Loa CO2
NOAA Global Monitoring Lab
Up· checked 14 Nov 2026, 01:55 UTCNo keyWeather & climate
The Keeling curve as a static CSV updated monthly.
Details
- Access
- No keyOpen access: no account or key needed.
- Coverage
- global
- Updates
- monthly
- Formats
- CSVTXT
- License
- Public domain (US gov)
- API base
https://gml.noaa.gov/webdata/ccgg/trends/co2- Tags
- co2, keeling-curve, climate
- Added
- 14 Nov 2026
Status checks
Up Last check 14 Nov 2026, 01:55 UTC, HTTP 200, 225 ms.
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- 14 Nov 2026, 01:55 UTC: up, HTTP 200, 225 ms
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