The Global Carbon Budget 2022 was published by Earth System Science Data.
The report says if emissions aren’t brought down, the world will use up its 1.5-degree-Celsius carbon budget — the amount of CO2 we can emit and stay within 1.5C — within nine years. After go beyond 1.5C the amount of tipping points crossed will bring on irreversible and exponential increasing rates of catastrophic damage.
Global fossil CO2 emissions (including cement carbonation) further increased in 2022, being now slightly above their pre-COVID-19 pandemic 2019 level. The 2021 emission increase was 0.46 GtC yr−1 (1.7 GtCO2 yr−1), bringing 2021 emissions to 9.9 ± 0.5 GtC yr−1 (36.3 ± 1.8 GtCO2 yr−1), same as the 2019 emissions level. Preliminary estimates based on data available suggest fossil CO2 emissions continued to increase by 1.0 % in 2022 relative to 2021 (0.1 % to 1.9 %), bringing emissions of 10.0 GtC yr−1 (36.6 GtCO2 yr−1), slightly above the 2019 level.
Emissions from coal, oil, and gas in 2022 are expected to be above their 2021 levels (by 1.0 %, 2.2 % and −0.2 % respectively). Regionally, emissions in 2022 are expected to have decreased by 0.9 % in China (3.1 GtC, 11.4 GtCO2) and 0.8 % in the European Union (0.8 GtC, 2.8 GtCO2) but increased by 1.5 % in the United States (1.4 GtC, 5.1 GtCO2), 6 % in India (0.8 GtC, 2.9 GtCO2), and 1.7 % in the rest of the world (4.2 GtC, 15.4 GtCO2).
atmospheric CO2 concentration