| Data/Model | Value |
| Ice core data (600 ka) | 95 mK/ppm [1] |
| Contemporary data (60 a) | 10.2 mK/ppm [6] |
| Geological data (650 Ma) | −0.43 mK/ppm (this work) |
| Holocene data (11 ka) | −43 mK/ppm (this work) |
| Greenhouse effect | 1.4 mK/ppm [1] |
| Greenhouse effect | 3.3 mK/ppm (this work) |
| Henry’s Law | 100 mK/ppm* [1] |