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Carbon credit buyers/

Duke University

Named as beneficiary of 245,355 t CO₂e retired in 10 retirements from 6 projects · 2024-10 → 2026-04

Retirement records as read from the registries on 8 Nov 2026.

Source: the public retirement records of ACR, CAR (beneficiary named by the registry). A retirement beneficiary is not necessarily the direct purchaser of the credits, and only retirements where the registry publishes the beneficiary are counted, so the total can be lower than what the organisation retired. The quality view below is CarbonMeld's assessment of each project — not a rating of the company.

Wrong name, or a retirement attributed to the wrong organisation? Report a profile correction.

What these tonnes are

  • Projects without a document-based rating34%
  • Projects with a registry status of rejected, withdrawn, terminated, suspended or issuance denied0%
  • Projects carrying the registry's CCP label66%
  • Carbon removal projects0%
  • Projects carrying a CORSIA eligibility label0%

Shares weight each project by the tonnes this organisation retired from it: the denominator is all retired tonnes and the categories overlap — a project can carry several labels at once. They use today's registry labels and CarbonMeld assessments of the projects, not the vintage-specific certification of the retired units, and not those at the time of retirement. The unassessed share is not a quality verdict: it names projects without a current CarbonMeld assessment.

Projects retired

  1. Tradewater - Thailand 7ACR-1108Thailand161,145 t
    7.0/10
  2. Tradewater US - ODS - #9ACR-1117United States42,137 t
    No public grade applies yet
  3. Tradewater US - ODS - #8ACR-1107United States26,718 t
    No public grade applies yet
  4. Rainier Biogas, LLCCAR-822United States13,787 t
    reassessment queued
  5. No public grade applies yet
  6. reassessment queued

Latest retirements

DateTonnesVintageProject
2026-04-132,8482024Tradewater US - ODS - #8
2026-04-061,2682011Rentech Energy Midwest Corporation – Nitric Acid Plant 1
2026-04-062002018Gaston County Landfill Gas Destruction Project
2026-04-061002018Gaston County Landfill Gas Destruction Project
2026-01-09118,1042025Tradewater - Thailand 7
2026-01-0943,0412024Tradewater - Thailand 7
2026-01-0942,1372025Tradewater US - ODS - #9
2026-01-0923,8702024Tradewater US - ODS - #8
2024-10-107,1122021Rainier Biogas, LLC
2024-10-106,6752020Rainier Biogas, LLC