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New Data Release for Emmi App and Emissions Model Improvements
What has changed since last data push:
Resolved BHP dual listing discrepancy
Sourced the latest Scope 3 emissions direct from the largest 200 public companies as an additional verification check on the most material emissions estimates.
Improved use of historical emissions and financial data where available to improve emissions prediction accuracy.
Minor tweaks in meta-model composition from using 12 to 14 individual machine learning models.
Retrained Scope 3 models based on reported emissions from 2019 onwards only due to under-reporting in the CDP and sustainability report universe previous to 2019.
Minor improvements to PCL and reductions calculation methods.
Summary of Differences:
Improved emissions accuracy by ~2% median absolute percentage error for Scopes 1 and 2 with a small 0.1% improvement in Scope 3.
Coverage of 48,233 public company Emissions in 2021, 47,633 in 2022 and an update from 69 to 5,460 companies in 2023.
| Scope1 Sept 2023 | Scope1 Feb 2024 | Scope2 Sept 2023 | Scope2 Feb 2024 | Scope3Sept 2023 | Scope3 Feb 2024 |
2021 Reported MDAPE | 24.7 | 23.3 | 26.4 | 23.7 | 26.3 | 26.2 |