Table 1.
Global budgets of anthropogenic CO2 estimated by Le Quéré et al.31) for six decadal periods from 1960 to 2017
| Mean (GtC/yr) | ||||||
|---|---|---|---|---|---|---|
| 1960–1969 | 1970–1979 | 1980–1989 | 1990–1999 | 2000–2009 | 2008–2017 | |
| Total emissions (Eff + Eluc) | ||||||
| Fossil CO2 emissions (Eff) | 3.1 ± 0.2 | 4.7 ± 0.2 | 5.4 ± 0.3 | 6.3 ± 0.3 | 7.8 ± 0.4 | 9.4 ± 0.5 |
| Land-use change emissions (Eluc) | 1.5 ± 0.7 | 1.2 ± 0.7 | 1.2 ± 0.7 | 1.4 ± 0.7 | 1.3 ± 0.7 | 1.5 ± 0.7 |
| Total emissions | 4.7 ± 0.7 | 5.8 ± 0.7 | 6.6 ± 0.8 | 7.6 ± 0.8 | 9.0 ± 0.8 | 10.8 ± 0.8 |
| Partitioning | ||||||
| Growth rate in atmospheric CO2 conc. (Gatm) | 1.7 ± 0.07 | 2.8 ± 0.07 | 3.4 ± 0.02 | 3.1 ± 0.02 | 4.0 ± 0.02 | 4.7 ± 0.02 |
| Ocean sink (Socean) | 1.0 ± 0.5 | 1.3 ± 0.5 | 1.7 ± 0.5 | 2.0 ± 0.5 | 2.1 ± 0.5 | 2.4 ± 0.5 |
| Terrestrial sink (Sland) | 1.2 ± 0.5 | 2.1 ± 0.4 | 1.8 ± 0.6 | 2.4 ± 0.5 | 2.7 ± 0.7 | 3.2 ± 0.7 |
| Budget imbalance | ||||||
| Bim = Eff + Eluc − (Gatm + Socean + Sland) | 0.6 | −0.3 | −0.3 | 0.2 | 0.2 | 0.5 |