Mauna Loa Observatory daily mean CO₂
Parts per million (ppm)
426.56 ppm
Data table
| Date | Parts per million (ppm) |
|---|---|
| 426.56 ppm | |
| 426.39 ppm | |
| 426.43 ppm | |
| 426.39 ppm | |
| 426.21 ppm | |
| 425.89 ppm | |
| 425.30 ppm | |
| 425.84 ppm | |
| 425.81 ppm | |
| 425.75 ppm | |
| 425.95 ppm | |
| 425.80 ppm | |
| 425.22 ppm | |
| 426.32 ppm | |
| 426.42 ppm | |
| 426.40 ppm | |
| 426.53 ppm | |
| 425.53 ppm | |
| 425.57 ppm | |
| 425.04 ppm | |
| 425.23 ppm | |
| 425.73 ppm | |
| 426.25 ppm | |
| 426.62 ppm | |
| 426.57 ppm | |
| 427.13 ppm | |
| 426.81 ppm | |
| 427.33 ppm | |
| 427.32 ppm | |
| 426.93 ppm | |
| 427.01 ppm | |
| 427.03 ppm | |
| 426.87 ppm | |
| 426.88 ppm | |
| 427.11 ppm | |
| 426.98 ppm | |
| 426.86 ppm | |
| 426.95 ppm | |
| 427.80 ppm | |
| 426.95 ppm | |
| 428.02 ppm | |
| 427.80 ppm | |
| 428.28 ppm | |
| 428.47 ppm | |
| 428.52 ppm | |
| 429.29 ppm | |
| 429.01 ppm | |
| 429.21 ppm | |
| 428.95 ppm | |
| 428.58 ppm | |
| 429.03 ppm | |
| 429.16 ppm |
Source: Dr. Xin Lan, NOAA/GML (gml.noaa.gov/ccgg/trends/) and Dr. Ralph Keeling, Scripps Institution of Oceanography (scrippsco2.ucsd.edu/)