Monitoring global CO2 emissions
This page will contain yearly updates on the monitoring of CO2 emissions using the statistical framework proposed in "Designing a statistical procedure for monitoring global carbon dioxide emissions" (Bennedsen, 2021).
The journal version (Climatic Change) of the paper can be found here . Electronic Supplementary Material to the paper can be downloaded here. The MATLAB code used in the paper can be downloaded here.
GCB2023 update
The 2023 version of the GCB data set (GCB2023) was released by Global Carbon Project in December, 2023. I updated the statistical analyses on the budget imbalance data, performed in Bennedsen (2021), to include this new data set; the details can be found in this pdf.
The main statistical test proposed in Bennedsen (2021) is a sequential hypothesis test for whether the GCB data are compatible with the carbon budget equation. Below (GCB2021 and GCB2022 updates), the first two statistical tests in the sequence are performed using the GCB2021 and GCB2022 data sets. Here, we perform the third statistical test in the sequence using the GCB2023 data set; the output can be found in Figure 3 below. As can be seen, the null cannot be rejected, meaning that there is no statistical evidence for incompatibility between the GCB2021-GCB2023 data sets and the carbon budget equation.
GCB2022 update
The 2022 version of the GCB data set (GCB2022) was released by Global Carbon Project on November 11, 2022. I updated the statistical analyses on the budget imbalance data, performed in Bennedsen (2021), to include this new data set; the details can be found in this pdf.
The main statistical test proposed in Bennedsen (2021) is a sequential hypothesis test for whether the GCB data are compatible with the carbon budget equation. Below (GCB2021 update), the first statistical test in the sequence is performed using the GCB2021 data set. Here, we perform the second statistical test in the sequence using the GCB2022 data set; the output can be found in Figure 2 below. As can be seen, the null cannot be rejected, meaning that there is no statistical evidence for incompatibility between the GCB2021 and GCB2022 data sets and the carbon budget equation.
GCB2021 update
The 2021 version of the GCB data set (GCB2021) was released by Global Carbon Project on November 4, 2021. I updated the statistical analyses on the budget imbalance data, performed in Bennedsen (2021), to include this new data set; the details can be found in this pdf.
The main statistical test proposed in Bennedsen (2021) is a sequential hypothesis test for whether the GCB data set is compatible with the carbon budget equation. Using the GCB2021 data set, we perform the initial statistical test; the output can be found in Figure 1 below. As can be seen, the null cannot be rejected, meaning that there is no statistical evidence for incompatibility between the most recent GCB2021 data set and the carbon budget equation.
