External assurance of carbon disclosures indicates possible underestimates in reported European corporate emissions data.
JRC Working Papers in Economics and Finance, 2023/09
Company carbon disclosures are crucial in assessing a firm's impact on the environment, and many policy actions are associated with this information. As a response to the increasing demand for transparency, many firms disclose carbon emissions through sustainability reports and voluntarily engage with external assurance of the reported information. However, the possible existence of systematic differences in reported emissions with respect to their assurance status is still under-explored. This study investigates the causal effect of third-party assurance on carbon disclosures in a sample of European companies. Findings suggest that non-assuring firms may be under-reporting their direct GHG emissions by up to a magnitude comparable to the largest annual reduction of EU emissions in history. On the contrary, the effect of assurance is much weaker to almost absent in indirect, Scope 2, emissions possibly due to their clear and easily verifiable estimation nature. The findings demonstrate that third-party assurance can provide more reliable and certainly more prudent estimates of corporate GHG emissions which are relevant to corporate sustainability strategy, policymaking and, ultimately, climate change mitigation.
PAPADOPOULOS Georgios;
2023-08-25
European Commission
JRC134799
https://publications.jrc.ec.europa.eu/repository/handle/JRC134799,
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