Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Comment
  • Published:

UNFCCC carbon trading could undermine global climate action

Recent United Nations policymaking on international emissions trading fails to reconcile longstanding flaws that could jeopardize the integrity of these programmes. We call for urgent action by policymakers to safeguard the future of the Paris Agreement.

This is a preview of subscription content, access via your institution

Access options

Buy this article

39,95 €

Prices may be subject to local taxes which are calculated during checkout

References

  1. Romm, J., Lezak, S. & Alshamsi, A. Annu. Rev. Environ. Resour. 50, 649–680 (2025).

    Article  Google Scholar 

  2. Probst, B. S. et al. Nat. Commun. 15, 9562 (2024).

    Article  CAS  Google Scholar 

  3. Macintosh, A. et al. Nature 646, 543–546 (2025).

    Article  CAS  Google Scholar 

  4. Cames, M. et al. How Additional is the Clean Development Mechanism? Analysis of the Application of Current Tools and Proposed Alternatives (Oeko-Institut, 2016); https://go.nature.com/47QO3pz

  5. Calel, R., Colmer, J., Dechezleprêtre, A. & Glachant, M. Am. Econ. J. Appl. Econ. 17, 1–40 (2025).

    Article  Google Scholar 

  6. Haya, B. Carbon Offsetting: An Efficient Way to Reduce Emissions or to Avoid Reducing Emissions? An Investigation and Analysis of Offsetting Design and Practice in India and China (Univ. California, Berkeley, 2010).

  7. Gill-Wiehl, A., Kammen, D. M. & Haya, B. K. Nat. Sustain. 7, 191–202 (2024).

    Article  Google Scholar 

  8. Fransen, T. et al. The State of Nationally Determined Contributions: 2022 (World Resources Institute, 2022); https://doi.org/10.46830/wrirpt.22.00043

  9. Article 6 Pipeline (UNEP, 2025); https://unepccc.org/article-6-pipeline

  10. Faecks, B. Over-crediting Analysis PoA 10415 (Carbon Market Watch, 2025); https://go.nature.com/49qnCZ7

  11. Demonstration of Additionality in Mechanism Methodologies: Version 01.0 A6.4-SBM015-A11 (UNFCCC, 2025).

  12. Guidance on Cooperative Approaches Referred to in Article 6, Paragraph 2, of the Paris Agreement and in Decision 2/CMA.3 (UNFCCC, 2024).

  13. Decision 6/CMA.4: Matters Relating to Cooperative Approaches Referred to in Article 6, Paragraph 2, of the Paris Agreement FCCC/PA/CMA/2022/10/Add.2 (UNFCCC, 2022).

  14. Zaman, S. T. Am. Univ. Int. Law Rev. 39, 803–869 (2024).

  15. Swinfield, T., Shrikanth, S., Bull, J. W., Madhavapeddy, A. & zu Ermgassen, S. O. S. E. Nat. Sustain. 7, 1217–1220 (2024).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Stephen Lezak.

Ethics declarations

Competing interests

The authors declare no competing interests.

Peer review

Peer review information

Nature Climate Change thanks Tom Swinfield and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Lezak, S., Zaman, S., Johnstone, I. et al. UNFCCC carbon trading could undermine global climate action. Nat. Clim. Chang. 16, 8–9 (2026). https://doi.org/10.1038/s41558-025-02517-5

Download citation

  • Published:

  • Version of record:

  • Issue date:

  • DOI: https://doi.org/10.1038/s41558-025-02517-5

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing