Global Carbon Budget 2024

Published: March 14, 2025

Citation: Friedlingstein et al., Global Carbon Budget 2024. https://doi.org/10.5194/essd-17-965-2025

Data: Global Carbon Project. (2024). Supplemental data of Global Carbon Budget 2024 (Version 1.0) [Data set]. Global Carbon Project. https://doi.org/10.18160/gcp-2024

Changelog:
  • 2023 total anthropogenic CO₂ emission (including the cement carbonation sink) of 11.1 ± 0.9 GtC/year (40.6 ± 3.2 GtCO₂/year)
  • 2023 fossil CO₂ emissions increased by 1.3% relative to 2022 to 10.3 ± 0.5 GtC/year (10.1 ± 0.5 GtC/year when the cement carbonation sink is included)
  • 2023 global atmospheric CO₂ concentration: 419.3 ± 0.1 ppm
  • remaining carbon budget for a 50 % likelihood to limit global warming to 1.5, 1.7, and 2 °C has been reduced to 65 GtC (235 GtCO₂), 160 GtC (585 GtCO₂), and 305 GtC (1110 GtCO₂),

Cement Carbonation sink (positive values represent a flux from the atmosphere to the land)

All values in million tonnes of carbon per year (MtC/yr). For values in million tonnes of CO₂ per year, multiply the values below by 3.664
1MtC = 1 million tonne of carbon = 3.664 million tonnes of CO₂

Methods: Full details of the method are described in Friedlingstein et al (2024).
Cite individual estimates as:
  • Cao Cao, Z., Myers, R. J., Lupton, R. C., Duan, H., Sacchi, R., Zhou, N., Reed Miller, T., Cullen, J. M., Ge, Q., and Liu, G.: The sponge effect and carbon emission mitigation potentials of the global cement cycle, Nature Communications, 11 (1), 3777, DOI: 10.1038/s41467-020-17583-w, 2020.
  • Huang Huang, Z., Wang, J., Bing, L., Qiu, Y., Guo, R., Yu, Y., Ma, M., Niu, L., Tong, D., Andrew, R.M., Friedlingstein, P., Canadell, J.G., Xi, F., Liu, Z., 2023. Global carbon uptake of cement carbonation accounts 1930-2021. Earth System Science Data 15 (11), 4947–4958. DOI: 10.5194/essd-15-4947-2023.

GCB

1960
1980
2000
2020
50
100
150
200
MtC

Cao

1960
1980
2000
2020
20
40
60
80
100
120
140
160
MtC

Huang

1960
1980
2000
2020
50
100
150
200
MtC

Unit MtC/year

YearGCBCaoHuang
195912.542110.207414.8769
196013.682111.140816.2233
196114.547711.837417.2580
196215.679912.753418.6063
196316.653013.548219.7578
196418.220014.821221.6188
196519.232615.629122.8361
196620.642816.784924.5006
196721.656617.622125.6911
196823.209618.884927.5344
196924.632020.017129.2469
197026.129321.229031.0296
197127.599822.942832.2568
197230.070124.478335.6619
197332.169626.190438.1488
197432.926026.762439.0896
197533.594527.304539.8845
197635.521529.289341.7537
197737.886830.912644.8611
197840.506033.029347.9826
197941.960834.150749.7709
198043.189335.172451.2062
198144.043635.892752.1945
198244.840536.621653.0595
198346.303737.840954.7664
198447.709839.000356.4193
198549.042440.133057.9519
198651.366842.023860.7098
198753.740743.963363.5181
198856.903746.597267.2102
198956.755248.320565.1898
199056.126049.316162.9358
199159.527450.451968.6030
199260.295352.737167.8535
199364.402555.339473.4656
199467.875058.548877.2012
199571.508761.833481.1840
199674.213664.520183.9071
199776.982666.771387.1938
199877.747267.700787.7936
199980.512570.309290.7158
200083.536973.200393.8736
200186.109474.220597.9983
200290.523078.6322102.4138
200397.275085.3377109.2124
2004104.064991.6497116.4801
2005111.161098.2402124.0817
2006121.0185107.1145134.9224
2007130.3680113.8329146.9030
2008134.6608115.7152153.6063
2009141.5124124.0164159.0083
2010150.2791131.9574168.6009
2011162.7191144.1225181.3157
2012169.2397151.3255187.1538
2013177.2292161.3935193.0650
2014184.9321167.6999202.1643
2015185.9389-205.4217
2016188.0040-207.7031
2017192.0726-212.1981
2018198.1956-218.9627
2019201.5832-222.7052
2020206.8577-228.5324
2021216.4625-239.1436
2022217.4893--
2023214.0491--