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<p>A key factor undermining the credibility of carbon offsets is the evaluation of project baselines and their impact. The ex ante scenarios constructed by project developers in accordance with rules set by certification schemes have been challenged by ex post evaluations from scientists, who frequently document cases of credit allocations that overestimate the actual emission reductions. Increasing credibility requires methodologies that reliably measure project outcomes and prevent overcrediting—an objective that ex post evaluations may be well suited to achieve. We explore how systematic ex post evaluations could restore credibility to certification schemes in the voluntary carbon market.</p>

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Restoring credibility in carbon offsets through systematic ex post evaluation

  • 期刊论文

  • 发表日期：

    2025年7月2日

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  • Philippe Delacote,
  • Sylvain Chabé-Ferret,
  • Anna Creti,
  • Katharyn Duffy,
  • Micah Elias,
  • Alejandro Guizar-Coutiño,
  • Ben Filewod,
  • Ben Groom,
  • Andreas Kontoleon,
  • Gwenole LeVelly,
  • Tara L’Horty,
  • Anouch Missirian,
  • Thales A. P. West

摘要

A key factor undermining the credibility of carbon offsets is the evaluation of project baselines and their impact. The ex ante scenarios constructed by project developers in accordance with rules set by certification schemes have been challenged by ex post evaluations from scientists, who frequently document cases of credit allocations that overestimate the actual emission reductions. Increasing credibility requires methodologies that reliably measure project outcomes and prevent overcrediting—an objective that ex post evaluations may be well suited to achieve. We explore how systematic ex post evaluations could restore credibility to certification schemes in the voluntary carbon market.