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Global carbon dioxide budget: emissions and where they go

Each year since 1959, the carbon dioxide released by fossil fuels and industry and by land-use change, and where it went: growth in the atmosphere, uptake by the ocean, by land ecosystems and by cement as it ages (the cement carbonation sink). The budget imbalance is what the estimates of emissions and sinks do not account for.

Latest value

38.60Gt CO₂/yr

World, 2024. Version 2025 v1.0.

Global carbon dioxide budget: emissions and where they go (billion tonnes of carbon dioxide per year)

462 values from 1959 to 2024. Lines: Fossil fuels and industry (before the cement carbonation sink), Land-use change, Growth in the atmosphere, Ocean sink, Land sink. The shaded band is the uncertainty range the producer gives.
Show as a table
Global carbon dioxide budget: emissions and where they go, every value
PeriodBudget componentValue (Gt CO₂/yr)RangeStatus
1959Fossil fuels and industry (before the cement carbonation sink)8.868.41 to 9.30final
1960Fossil fuels and industry (before the cement carbonation sink)9.398.92 to 9.86final
1961Fossil fuels and industry (before the cement carbonation sink)9.418.94 to 9.89final
1962Fossil fuels and industry (before the cement carbonation sink)9.759.26 to 10.23final
1963Fossil fuels and industry (before the cement carbonation sink)10.279.75 to 10.78final
1964Fossil fuels and industry (before the cement carbonation sink)10.8210.28 to 11.37final
1965Fossil fuels and industry (before the cement carbonation sink)11.3110.75 to 11.88final
1966Fossil fuels and industry (before the cement carbonation sink)11.8611.27 to 12.46final
1967Fossil fuels and industry (before the cement carbonation sink)12.2411.63 to 12.85final
1968Fossil fuels and industry (before the cement carbonation sink)12.9112.26 to 13.55final
1969Fossil fuels and industry (before the cement carbonation sink)13.7613.07 to 14.45final
1970Fossil fuels and industry (before the cement carbonation sink)14.9014.15 to 15.64final
1971Fossil fuels and industry (before the cement carbonation sink)15.5014.73 to 16.28final
1972Fossil fuels and industry (before the cement carbonation sink)16.2215.41 to 17.04final
1973Fossil fuels and industry (before the cement carbonation sink)17.0816.22 to 17.93final
1974Fossil fuels and industry (before the cement carbonation sink)17.0016.15 to 17.85final
1975Fossil fuels and industry (before the cement carbonation sink)16.9916.14 to 17.84final
1976Fossil fuels and industry (before the cement carbonation sink)17.8616.97 to 18.76final
1977Fossil fuels and industry (before the cement carbonation sink)18.3617.44 to 19.28final
1978Fossil fuels and industry (before the cement carbonation sink)19.0218.07 to 19.98final
1979Fossil fuels and industry (before the cement carbonation sink)19.5118.53 to 20.48final
1980Fossil fuels and industry (before the cement carbonation sink)19.4118.44 to 20.38final
1981Fossil fuels and industry (before the cement carbonation sink)18.8817.94 to 19.82final
1982Fossil fuels and industry (before the cement carbonation sink)18.7317.79 to 19.67final
1983Fossil fuels and industry (before the cement carbonation sink)18.9017.96 to 19.85final
1984Fossil fuels and industry (before the cement carbonation sink)19.4618.48 to 20.43final
1985Fossil fuels and industry (before the cement carbonation sink)20.1419.14 to 21.15final
1986Fossil fuels and industry (before the cement carbonation sink)20.4419.42 to 21.46final
1987Fossil fuels and industry (before the cement carbonation sink)21.1120.05 to 22.16final
1988Fossil fuels and industry (before the cement carbonation sink)21.9220.82 to 23.01final
1989Fossil fuels and industry (before the cement carbonation sink)22.2021.09 to 23.31final
1990Fossil fuels and industry (before the cement carbonation sink)22.7321.60 to 23.87final
1991Fossil fuels and industry (before the cement carbonation sink)23.2122.05 to 24.37final
1992Fossil fuels and industry (before the cement carbonation sink)22.5221.39 to 23.65final
1993Fossil fuels and industry (before the cement carbonation sink)22.7521.61 to 23.89final
1994Fossil fuels and industry (before the cement carbonation sink)22.9721.83 to 24.12final
1995Fossil fuels and industry (before the cement carbonation sink)23.5222.34 to 24.69final
1996Fossil fuels and industry (before the cement carbonation sink)24.2323.02 to 25.45final
1997Fossil fuels and industry (before the cement carbonation sink)24.3823.16 to 25.60final
1998Fossil fuels and industry (before the cement carbonation sink)24.3023.08 to 25.51final
1999Fossil fuels and industry (before the cement carbonation sink)24.8423.60 to 26.08final
2000Fossil fuels and industry (before the cement carbonation sink)25.5124.24 to 26.79final
2001Fossil fuels and industry (before the cement carbonation sink)25.6924.41 to 26.98final
2002Fossil fuels and industry (before the cement carbonation sink)26.2724.95 to 27.58final
2003Fossil fuels and industry (before the cement carbonation sink)27.6526.27 to 29.04final
2004Fossil fuels and industry (before the cement carbonation sink)28.6127.18 to 30.04final
2005Fossil fuels and industry (before the cement carbonation sink)29.6028.12 to 31.08final
2006Fossil fuels and industry (before the cement carbonation sink)30.5929.06 to 32.12final
2007Fossil fuels and industry (before the cement carbonation sink)31.5029.92 to 33.07final
2008Fossil fuels and industry (before the cement carbonation sink)32.0530.45 to 33.65final
2009Fossil fuels and industry (before the cement carbonation sink)31.5129.94 to 33.09final
2010Fossil fuels and industry (before the cement carbonation sink)33.3231.65 to 34.98final
2011Fossil fuels and industry (before the cement carbonation sink)34.4832.76 to 36.20final
2012Fossil fuels and industry (before the cement carbonation sink)34.9533.21 to 36.70final
2013Fossil fuels and industry (before the cement carbonation sink)35.2833.51 to 37.04final
2014Fossil fuels and industry (before the cement carbonation sink)35.4733.69 to 37.24final
2015Fossil fuels and industry (before the cement carbonation sink)35.4033.63 to 37.17final
2016Fossil fuels and industry (before the cement carbonation sink)35.3933.62 to 37.16final
2017Fossil fuels and industry (before the cement carbonation sink)35.9734.18 to 37.77final
2018Fossil fuels and industry (before the cement carbonation sink)36.7334.90 to 38.57final
2019Fossil fuels and industry (before the cement carbonation sink)37.0935.23 to 38.94final
2020Fossil fuels and industry (before the cement carbonation sink)35.1633.40 to 36.92final
2021Fossil fuels and industry (before the cement carbonation sink)36.8735.02 to 38.71final
2022Fossil fuels and industry (before the cement carbonation sink)37.5335.65 to 39.40final
2023Fossil fuels and industry (before the cement carbonation sink)38.0936.19 to 40.00final
2024Fossil fuels and industry (before the cement carbonation sink)38.6036.67 to 40.53final
1959Land-use change8.696.13 to 11.26final
1960Land-use change7.615.05 to 10.18final
1961Land-use change7.635.07 to 10.19final
1962Land-use change7.144.57 to 9.70final
1963Land-use change6.954.39 to 9.52final
1964Land-use change6.664.10 to 9.22final
1965Land-use change6.393.82 to 8.95final
1966Land-use change5.923.35 to 8.48final
1967Land-use change6.253.69 to 8.82final
1968Land-use change6.333.76 to 8.89final
1969Land-use change6.944.38 to 9.51final
1970Land-use change6.694.12 to 9.25final
1971Land-use change6.143.57 to 8.70final
1972Land-use change6.443.87 to 9.00final
1973Land-use change6.253.69 to 8.82final
1974Land-use change6.313.75 to 8.88final
1975Land-use change6.123.56 to 8.69final
1976Land-use change6.063.50 to 8.63final
1977Land-use change6.624.06 to 9.18final
1978Land-use change6.564.00 to 9.13final
1979Land-use change5.863.29 to 8.42final
1980Land-use change6.003.44 to 8.57final
1981Land-use change5.843.27 to 8.40final
1982Land-use change5.532.97 to 8.10final
1983Land-use change5.843.28 to 8.40final
1984Land-use change6.423.86 to 8.99final
1985Land-use change6.794.22 to 9.35final
1986Land-use change6.944.38 to 9.51final
1987Land-use change6.503.93 to 9.06final
1988Land-use change6.163.59 to 8.72final
1989Land-use change5.983.42 to 8.55final
1990Land-use change5.833.26 to 8.39final
1991Land-use change5.723.16 to 8.29final
1992Land-use change5.973.40 to 8.53final
1993Land-use change5.733.17 to 8.30final
1994Land-use change6.674.10 to 9.23final
1995Land-use change6.283.71 to 8.84final
1996Land-use change6.543.98 to 9.11final
1997Land-use change8.025.45 to 10.58final
1998Land-use change6.794.23 to 9.36final
1999Land-use change6.564.00 to 9.13final
2000Land-use change6.153.58 to 8.71final
2001Land-use change5.462.90 to 8.03final
2002Land-use change6.093.53 to 8.66final
2003Land-use change7.324.76 to 9.89final
2004Land-use change6.443.88 to 9.01final
2005Land-use change5.933.37 to 8.50final
2006Land-use change6.033.47 to 8.60final
2007Land-use change5.593.03 to 8.16final
2008Land-use change5.953.39 to 8.52final
2009Land-use change6.533.97 to 9.10final
2010Land-use change6.523.95 to 9.08final
2011Land-use change6.393.83 to 8.96final
2012Land-use change6.684.12 to 9.25final
2013Land-use change6.323.75 to 8.88final
2014Land-use change6.413.85 to 8.97final
2015Land-use change6.513.95 to 9.08final
2016Land-use change5.382.81 to 7.94final
2017Land-use change5.312.74 to 7.87final
2018Land-use change4.882.32 to 7.45final
2019Land-use change4.892.32 to 7.45final
2020Land-use change4.521.95 to 7.08final
2021Land-use change4.662.09 to 7.22final
2022Land-use change4.792.22 to 7.35final
2023Land-use change4.752.18 to 7.31final
2024Land-use change4.592.02 to 7.15final
1959Growth in the atmosphere7.47final
1960Growth in the atmosphere5.53final
1961Growth in the atmosphere6.07final
1962Growth in the atmosphere4.36final
1963Growth in the atmosphere4.44final
1964Growth in the atmosphere3.81final
1965Growth in the atmosphere8.56final
1966Growth in the atmosphere8.56final
1967Growth in the atmosphere4.75final
1968Growth in the atmosphere7.70final
1969Growth in the atmosphere10.27final
1970Growth in the atmosphere8.79final
1971Growth in the atmosphere5.68final
1972Growth in the atmosphere11.44final
1973Growth in the atmosphere11.36final
1974Growth in the atmosphere5.29final
1975Growth in the atmosphere9.57final
1976Growth in the atmosphere7.55final
1977Growth in the atmosphere14.94final
1978Growth in the atmosphere10.04final
1979Growth in the atmosphere16.65final
1980Growth in the atmosphere13.07final
1981Growth in the atmosphere8.95final
1982Growth in the atmosphere7.70final
1983Growth in the atmosphere14.32final
1984Growth in the atmosphere9.57final
1985Growth in the atmosphere12.84final
1986Growth in the atmosphere7.94final
1987Growth in the atmosphere20.62final
1988Growth in the atmosphere16.89final
1989Growth in the atmosphere11.36final
1990Growth in the atmosphere9.49final
1991Growth in the atmosphere5.84final
1992Growth in the atmosphere5.60final
1993Growth in the atmosphere9.57final
1994Growth in the atmosphere12.92final
1995Growth in the atmosphere15.56final
1996Growth in the atmosphere8.17final
1997Growth in the atmosphere15.33final
1998Growth in the atmosphere22.10final
1999Growth in the atmosphere10.43final
2000Growth in the atmosphere9.73final
2001Growth in the atmosphere14.40final
2002Growth in the atmosphere18.37final
2003Growth in the atmosphere17.82final
2004Growth in the atmosphere12.14final
2005Growth in the atmosphere19.22final
2006Growth in the atmosphere13.85final
2007Growth in the atmosphere16.58final
2008Growth in the atmosphere13.77final
2009Growth in the atmosphere12.30final
2010Growth in the atmosphere18.37final
2011Growth in the atmosphere13.54final
2012Growth in the atmosphere18.76final
2013Growth in the atmosphere19.07final
2014Growth in the atmosphere15.80final
2015Growth in the atmosphere22.96final
2016Growth in the atmosphere22.10final
2017Growth in the atmosphere16.65final
2018Growth in the atmosphere18.60final
2019Growth in the atmosphere19.46final
2020Growth in the atmosphere18.13final
2021Growth in the atmosphere18.44final
2022Growth in the atmosphere17.82final
2023Growth in the atmosphere21.01final
2024Growth in the atmosphere29.03final
1959Ocean sink4.09final
1960Ocean sink3.97final
1961Ocean sink3.76final
1962Ocean sink3.92final
1963Ocean sink4.64final
1964Ocean sink5.01final
1965Ocean sink5.33final
1966Ocean sink5.04final
1967Ocean sink4.47final
1968Ocean sink4.97final
1969Ocean sink5.39final
1970Ocean sink4.94final
1971Ocean sink5.26final
1972Ocean sink6.02final
1973Ocean sink5.84final
1974Ocean sink5.62final
1975Ocean sink5.58final
1976Ocean sink6.02final
1977Ocean sink6.27final
1978Ocean sink6.24final
1979Ocean sink6.07final
1980Ocean sink7.37final
1981Ocean sink7.11final
1982Ocean sink7.43final
1983Ocean sink8.11final
1984Ocean sink7.63final
1985Ocean sink7.43final
1986Ocean sink7.50final
1987Ocean sink7.73final
1988Ocean sink7.59final
1989Ocean sink7.75final
1990Ocean sink8.07final
1991Ocean sink8.63final
1992Ocean sink9.14final
1993Ocean sink8.97final
1994Ocean sink8.41final
1995Ocean sink8.36final
1996Ocean sink8.33final
1997Ocean sink8.73final
1998Ocean sink8.95final
1999Ocean sink8.19final
2000Ocean sink8.03final
2001Ocean sink7.70final
2002Ocean sink9.12final
2003Ocean sink9.50final
2004Ocean sink9.43final
2005Ocean sink9.61final
2006Ocean sink9.97final
2007Ocean sink9.88final
2008Ocean sink9.95final
2009Ocean sink10.38final
2010Ocean sink10.38final
2011Ocean sink10.51final
2012Ocean sink10.65final
2013Ocean sink10.83final
2014Ocean sink11.29final
2015Ocean sink11.61final
2016Ocean sink12.05final
2017Ocean sink11.44final
2018Ocean sink11.78final
2019Ocean sink11.88final
2020Ocean sink11.88final
2021Ocean sink11.52final
2022Ocean sink11.43final
2023Ocean sink12.00final
2024Ocean sink12.42final
1959Land sink1.66final
1960Land sink2.69final
1961Land sink2.50final
1962Land sink4.15final
1963Land sink2.83final
1964Land sink3.61final
1965Land sink1.28final
1966Land sink4.14final
1967Land sink4.89final
1968Land sink5.87final
1969Land sink2.15final
1970Land sink2.68final
1971Land sink6.05final
1972Land sink2.96final
1973Land sink4.19final
1974Land sink10.79final
1975Land sink7.67final
1976Land sink7.94final
1977Land sink4.19final
1978Land sink7.74final
1979Land sink3.97final
1980Land sink0.91final
1981Land sink5.92final
1982Land sink4.86final
1983Land sink0.76final
1984Land sink6.90final
1985Land sink7.48final
1986Land sink7.16final
1987Land sink2.23final
1988Land sink4.98final
1989Land sink9.84final
1990Land sink6.77final
1991Land sink6.46final
1992Land sink6.17final
1993Land sink8.19final
1994Land sink4.56final
1995Land sink5.49final
1996Land sink9.17final
1997Land sink9.33final
1998Land sink5.08final
1999Land sink10.41final
2000Land sink9.97final
2001Land sink7.38final
2002Land sink3.97final
2003Land sink7.28final
2004Land sink9.22final
2005Land sink5.81final
2006Land sink9.30final
2007Land sink8.62final
2008Land sink9.58final
2009Land sink8.71final
2010Land sink9.81final
2011Land sink12.06final
2012Land sink6.76final
2013Land sink9.95final
2014Land sink11.13final
2015Land sink6.50final
2016Land sink7.27final
2017Land sink10.44final
2018Land sink10.55final
2019Land sink8.73final
2020Land sink7.70final
2021Land sink9.51final
2022Land sink11.38final
2023Land sink7.39final
2024Land sink7.12final
1959Cement carbonation sink0.05final
1960Cement carbonation sink0.05final
1961Cement carbonation sink0.06final
1962Cement carbonation sink0.06final
1963Cement carbonation sink0.07final
1964Cement carbonation sink0.07final
1965Cement carbonation sink0.08final
1966Cement carbonation sink0.08final
1967Cement carbonation sink0.08final
1968Cement carbonation sink0.09final
1969Cement carbonation sink0.10final
1970Cement carbonation sink0.10final
1971Cement carbonation sink0.11final
1972Cement carbonation sink0.11final
1973Cement carbonation sink0.12final
1974Cement carbonation sink0.13final
1975Cement carbonation sink0.13final
1976Cement carbonation sink0.14final
1977Cement carbonation sink0.14final
1978Cement carbonation sink0.15final
1979Cement carbonation sink0.16final
1980Cement carbonation sink0.16final
1981Cement carbonation sink0.16final
1982Cement carbonation sink0.16final
1983Cement carbonation sink0.17final
1984Cement carbonation sink0.17final
1985Cement carbonation sink0.18final
1986Cement carbonation sink0.18final
1987Cement carbonation sink0.19final
1988Cement carbonation sink0.20final
1989Cement carbonation sink0.21final
1990Cement carbonation sink0.21final
1991Cement carbonation sink0.22final
1992Cement carbonation sink0.23final
1993Cement carbonation sink0.24final
1994Cement carbonation sink0.25final
1995Cement carbonation sink0.26final
1996Cement carbonation sink0.27final
1997Cement carbonation sink0.28final
1998Cement carbonation sink0.29final
1999Cement carbonation sink0.30final
2000Cement carbonation sink0.31final
2001Cement carbonation sink0.32final
2002Cement carbonation sink0.33final
2003Cement carbonation sink0.36final
2004Cement carbonation sink0.38final
2005Cement carbonation sink0.41final
2006Cement carbonation sink0.44final
2007Cement carbonation sink0.48final
2008Cement carbonation sink0.50final
2009Cement carbonation sink0.52final
2010Cement carbonation sink0.56final
2011Cement carbonation sink0.60final
2012Cement carbonation sink0.63final
2013Cement carbonation sink0.66final
2014Cement carbonation sink0.69final
2015Cement carbonation sink0.69final
2016Cement carbonation sink0.70final
2017Cement carbonation sink0.72final
2018Cement carbonation sink0.73final
2019Cement carbonation sink0.77final
2020Cement carbonation sink0.78final
2021Cement carbonation sink0.82final
2022Cement carbonation sink0.81final
2023Cement carbonation sink0.83final
2024Cement carbonation sink0.82final
1959Budget imbalance4.28final
1960Budget imbalance4.76final
1961Budget imbalance4.66final
1962Budget imbalance4.40final
1963Budget imbalance5.25final
1964Budget imbalance4.98final
1965Budget imbalance2.45final
1966Budget imbalance−0.04final
1967Budget imbalance4.29final
1968Budget imbalance0.59final
1969Budget imbalance2.80final
1970Budget imbalance5.08final
1971Budget imbalance4.54final
1972Budget imbalance2.13final
1973Budget imbalance1.82final
1974Budget imbalance1.48final
1975Budget imbalance0.16final
1976Budget imbalance2.29final
1977Budget imbalance−0.57final
1978Budget imbalance1.42final
1979Budget imbalance−1.48final
1980Budget imbalance3.90final
1981Budget imbalance2.58final
1982Budget imbalance4.10final
1983Budget imbalance1.38final
1984Budget imbalance1.60final
1985Budget imbalance−0.99final
1986Budget imbalance4.61final
1987Budget imbalance−3.17final
1988Budget imbalance−1.59final
1989Budget imbalance−0.99final
1990Budget imbalance4.01final
1991Budget imbalance7.78final
1992Budget imbalance7.35final
1993Budget imbalance1.52final
1994Budget imbalance3.51final
1995Budget imbalance0.12final
1996Budget imbalance4.83final
1997Budget imbalance−1.27final
1998Budget imbalance−5.32final
1999Budget imbalance2.08final
2000Budget imbalance3.63final
2001Budget imbalance1.36final
2002Budget imbalance0.57final
2003Budget imbalance0.02final
2004Budget imbalance3.87final
2005Budget imbalance0.48final
2006Budget imbalance3.06final
2007Budget imbalance1.54final
2008Budget imbalance4.20final
2009Budget imbalance6.14final
2010Budget imbalance0.72final
2011Budget imbalance4.16final
2012Budget imbalance4.84final
2013Budget imbalance1.09final
2014Budget imbalance2.97final
2015Budget imbalance0.15final
2016Budget imbalance−1.35final
2017Budget imbalance2.03final
2018Budget imbalance−0.04final
2019Budget imbalance1.14final
2020Budget imbalance1.18final
2021Budget imbalance1.23final
2022Budget imbalance0.87final
2023Budget imbalance1.60final
2024Budget imbalance−6.20final
Calculated by Environment Dashboard from Global Carbon Project data: Supplemental data of Global Carbon Budget 2025 (Version 1.0), ICOS Carbon Portal, doi:10.18160/GCP-2025, CC BY 4.0. Friedlingstein et al. (2026), Global Carbon Budget 2025, Earth Syst. Sci. Data 18, 3211–3288, doi:10.5194/essd-18-3211-2026. Changes: converted from billion tonnes of carbon to billion tonnes of carbon dioxide (× 3.664); one-sigma ranges added for fossil and land-use change emissions from the uncertainties stated in the sheet. CC BY 4.0 (ICOS CCBY4 Data Licence).

Where it comes from

Producer
Global Carbon Project · Global Carbon Budget 2025: global sources and sinks of carbon dioxide
Version
2025 v1.0
Fetched
2026-10-04 (automatically), 480,363 bytes
Fingerprint
sha256 a928cf06c57576b66761d1fec8224c9a41a781eb63442afc03ba902858dd64a9ETag "d62ae19e36bfa4d1" · Last-Modified Sun, 17 May 2026 16:23:09 GMT
Copies
No Wayback copy recorded yet.Our copy of the exact file
Cite the producer
Global Carbon Project. (2026). Supplemental data of Global Carbon Budget 2025 (Version 1.0) [Data set]. Global Carbon Project. https://doi.org/10.18160/gcp-2025

What was done to it

  1. Read the sheet 'Global Carbon Budget' of Global_Carbon_Budget_2025_v1.0.xlsx (Global Carbon Budget 2025 v1.0, ICOS object qSjPBsV1drZnYdH-yCJMmkGn): one row per year 1959–2024, in billion tonnes of carbon per year. Sinks are positive numbers in the sheet and stay positive here.

    Code: pipeline/src/envdash/transforms/emissions/gcb_global.py · code sha256 63ef45577c93e407… · inputs a928cf06c575…

  2. Checked the sheet's definition of the budget imbalance on every year: fossil emissions plus land-use change emissions, minus atmospheric growth, ocean sink, land sink and cement carbonation sink, equals the imbalance column (largest difference 3.3e-14 GtC/yr). This confirms that the fossil column is before the cement carbonation sink is subtracted.

    Code: pipeline/src/envdash/transforms/emissions/gcb_global.py · code sha256 63ef45577c93e407… · inputs a928cf06c575…

  3. Converted from billion tonnes of carbon to billion tonnes of carbon dioxide by multiplying by 3.664, the factor the sheet states ("multiply the numbers below by 3.664"), with exact decimal arithmetic on the stored values.

    Code: pipeline/src/envdash/transforms/emissions/gcb_global.py · code sha256 63ef45577c93e407… · inputs a928cf06c575…

  4. Lower and upper are given for two components only, from the one-sigma uncertainties the sheet states: ±5 % of fossil emissions, and ±0.7 billion tonnes of carbon (2.5648 billion tonnes of carbon dioxide) per year for land-use change. The sheet gives the ocean sink (±0.4) and land sink (±0.5 billion tonnes of carbon per year) uncertainties only 'on average' and atmospheric growth's as 'variable', so those components and the imbalance have no range.

    Code: pipeline/src/envdash/transforms/emissions/gcb_global.py · code sha256 63ef45577c93e407… · inputs a928cf06c575…

What it covers

Geography
World
Land use, land-use change and forestry
included
Basis
Carbon dioxide only. Fossil emissions are before the cement carbonation sink is subtracted; sinks are positive numbers. Land-use change is the average of three bookkeeping models (BLUE, OSCAR, LUCE); the ocean and land sinks are model and data-product averages.
Unit
billion tonnes of carbon dioxide per year (Gt CO₂/yr)