CoinDesk
Petrobras is testing Cardano in two research projects to track environmental claims tied to sustainable aviation fuel and Diesel R, its diesel made partly from renewable materials. The aviation project aims to stop the same emissions reduction being claimed twice; the diesel project would record fuel data from production through transportation and use.
Why it matters
The aviation pilot addresses a challenge in book-and-claim systems, where an airline can pay for the environmental benefit of sustainable fuel even if the fuel is used elsewhere. Cardano would record where each benefit originated, who received it and when it was claimed. A passenger-facing application could calculate a fuel benefit from a trip’s airports and issue a certificate linking the allocation to the original fuel certificate.
The Diesel R proposal would connect records across the fuel’s journey, potentially helping companies report Scope 3 emissions across suppliers and customers. That information often sits with other businesses, making traceability a practical hurdle for emissions reporting.
Market impact
The projects give Cardano a potential enterprise use case in energy supply chains, while Petrobras is exploring ways to strengthen the records behind lower-carbon fuel claims. Cardano Foundation CEO Frederik Gregaard pointed to Petrobras as another example of Brazilian institutional interest in on-chain provenance and traceability.
Both efforts remain at the research stage. The diesel model is proposed, and Petrobras disclosed neither covered fuel volumes nor a timeline for broader deployment, so commercial adoption has yet to be established.
Frequently asked questions
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What are Petrobras' two Cardano research projects tracking?
One project tracks environmental claims tied to sustainable aviation fuel. The other would record Diesel R data through production, transportation and use.
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How could the aviation project prevent double-counted emissions benefits?
Cardano would record where each benefit originated, who received it and when it was claimed, helping prevent multiple companies from claiming the same reduction.
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How does the aviation project use a book-and-claim model?
An airline can pay for the environmental benefit of sustainable fuel even if that fuel is used elsewhere. The project would link the allocated benefit to its original fuel certificate.
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How could tracking Diesel R help companies report emissions?
A record of the fuel's production, transportation and use could support Scope 3 emissions reporting across suppliers and customers.
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Are Petrobras' Cardano projects ready for broader deployment?
No. Both remain in the research stage, the diesel model is proposed, and no fuel volumes or timeline for broader deployment have been disclosed.
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