Document Type

Memo/Briefing Note

Publication Date



To further and fully understand how to plan for the decarbonization of mining value chains, we need better data on carbon and other greenhouse gas (GHG) emissions. However, neither consumers, corporates, or financial institutions know the embodied emissions in the products they produce or sell. While methods like life-cycle analysis and environmental product declarations exist, none use a verifiable, comparable, or widely adopted emissions reporting framework capable of sending supply chain signals.

To truly reform material supply chains, new solutions for markets, capital, and policy are required. COMET (the Coalition on Materials Emissions Transparency)—an alliance launched at Davos in January 2020 by CCSI, RockyMountain Institute, MIT’s Sustainable Supply Chains initiative, and the Colorado School of Mines—is creating a harmonized GHG calculation framework applicable to all mineral and industrial supply chains. To learn more about COMET, read the two-page policy brief The COMET Framework: Greenhouse Gas Data Transparency to Enable the Success of EU Climate Policy and the three two-pagers on how COMET is working with financiers, producers, and buyers to create a harmonized GHG calculation framework.


Environmental Law | European Law | International Law | Law | Law and Economics | Oil, Gas, and Mineral Law | Securities Law

COMET-Buyers-Final-12.16_compressed.pdf (287 kB)
COMET: Buyers

COMET-Investor-Final-12.11.pdf (579 kB)
COMET: Financiers

COMET-Industry-Final-12.11.pdf (295 kB)
COMET: Producers