Most companies and investors are not yet measuring and targeting reductions in Scope 3 value chain emissions, leading to significant overlooked and unreported financial risks in their supply chains, according to a new report released by BCG and environmental disclosure system CDP.
According to ESG Today, the report, titled “Scope 3 Upstream: Big Challenges, Simple Remedies,” analysed responses to CDP’s 2023 data request. CDP operates a global environmental disclosure system, enabling investors and other stakeholders to measure and track organisations’ performance in key environmental sustainability areas including climate change, deforestation, water security, and plastic-related impact.
In 2023, a record of more than 23,000 companies disclosed through CDP, marking a 24% increase over the previous year, representing companies worth $67 trillion, or over 66% of global market capitalisation.
Scope 3 emissions typically account for the significant majority of most companies’ emissions footprint. According to the report, companies’ supply chain emissions reported to CDP were on average 26 times higher than their combined Scope 1 and 2 operational emissions.
Despite the disproportionate scale of Scope 3 emissions, these value chain emissions, occurring outside the direct control of companies, are also typically the most difficult to measure and manage. The report found that companies are twice as likely to measure Scope 1 and 2 emissions than Scope 3, and 2.4 times more likely to set Scope 1 and 2 emissions reduction targets than Scope 3.
The study revealed that the lack of measurement and management of Scope 3 emissions can lead to significant unreported risks for companies and investors, as well as overlooked material supply chain risks that can adversely impact corporate performance.
Based on upstream emissions in 2023 from the top 3 Scope 3-emitting sectors—manufacturing, retail, and materials—the report identified an implied carbon liability of more than $335bn, at the IMF-proposed 2030 $75 floor carbon price.
Despite this potential liability, only half of CDP-reporting companies evaluate the financial risks from upstream emissions, with a third of these companies acknowledging risks to profit from Scope 3 emissions. Similarly, only around a third of investors have investment policies mandating climate-related requirements for investee companies, and just 10% require the disclosure of Scope 3 supply chain emissions.
CDP CEO Sherry Madera emphasised the importance of Scope 3 data, stating, “Scope 3 data is no longer a nice to have. Financial markets stakeholders, from corporates to investors, must scale up the level of accountability and action to match the scale of supply chain emissions. As global standards and incoming mandatory reporting rules require Scope 3, this disclosure will increasingly affect core business and portfolio success both at home and abroad.”
The report highlighted three factors, out of more than 20 examined, that emerged as statistically significant to target setting and action on Scope 3 emissions. These factors included having a “climate-responsible board,” supplier engagement, and internal carbon pricing. Companies disclosing through CDP with a board that has climate oversight and at least one climate-competent board member were found to be 4.8 times more likely to have a 1.5°C-aligned transition plan with a Scope 3 target.
Similarly, companies engaging with suppliers on climate-related issues and those that have adopted an internal carbon price were found to be nearly seven times, and four times as likely, respectively, to have a 1.5°C-aligned transition plan and a Scope 3 target.
Overall, the report found that 34% of companies have a climate-responsible board, 41% are engaging with suppliers, and 14% are using an internal carbon price.
BCG Managing Director and Partner Diana Dimitrova highlighted the impact of supply chain emissions, saying, “Supply chain emissions are, on average, 26 times greater than a corporate’s operational emissions. Hence, aligning climate ambitions across the supply chain helps drive a disproportionate impact on emissions.
“Yet, these emissions continue to be overlooked by corporates and investors alike. A $335bn+ liability is overlooked. The responsibilities and incentives to act on Scope 3 emissions for these two groups converge on risk management, and their oversight bodies must push for emission reduction. Lack of management oversight on upstream emissions exposes boards to regulatory, reputation, and operational risks. Boards have a fiduciary responsibility to act on climate-related risks, while investors must demand transparency and price in risk. Addressing Scope 3 emissions is therefore a shared responsibility.”
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