Carbon dioxide removal in the G20 pledges: limited and lacking credibility

Oct 29, 2025

Countries must sharply reduce emissions and scale up carbon dioxide removal (CDR) to meet the temperature goal of the Paris Agreement, but the role of CDR in current pledges remains limited and lacks credibility. Only three G20 members submitted a new Nationally Determined Contribution (NDC) by the February 2025 deadline. Less than half submitted one by the end of September 2025. As it stands, only eight provide enough information to judge the contribution of CDR to meeting their targets. Even fewer parties have taken actions to make these pledges credible, namely by setting net zero emissions targets into law, implementing CDR policies and measures, and comprehensively planning for scaling up CDR. Without more transparency and credible commitments, it remains highly uncertain whether parties plan to support CDR and if these plans are sufficient to put the world on track for scaling it by the mid-century.

This Insight Report, from the State of Carbon Dioxide Removal team, analyses how CDR is represented in recently submitted NDCs and Biennial Transparency Reports (BTRs).

Lead authors: William F. Lamb and Carley C. Reynolds. Contributing authors: Oliver Geden, Stephen M. Smith, Naomi E. Vaughan, Gregory F. Nemet, Katie Lebling, Morgan Edwards, Jan C. Minx, Matthew J. Gidden.

Publication details
Theme(s)
Carbon dioxide removal
Type(s)
Report
Author(s)
Smith, Steve
Year(s)
2025
The State of Carbon Dioxide Removal

Latest news

Oxford Net Zero academics co-lead open letter to DESNZ Secretary of State on carbon storage
Oxford Net Zero academics co-lead open letter to DESNZ Secretary of State on carbon storage

Dozens of academics, environmental professionals and members of civil society have this week published an open letter to the Secretary of State at the Department of Energy Security and Net Zero, Miatta Fahnbulleh, arguing for specific ... Read more

Dr Radhika Khosla awarded the title of Professor of Environmental Science and Policy
Dr Radhika Khosla awarded the title of Professor of Environmental Science and Policy

Dr Radhika Khosla, formerly Associate Professor and researcher at the Smith School of Enterprise and the Environment, University of Oxford, has been awarded the title of Professor of Environmental Science and Policy. The title was awarded ... Read more

Here’s how to make North Sea drilling compatible with net zero
Here’s how to make North Sea drilling compatible with net zero

By Professor Myles Allen, Founding Director of Oxford Net Zero and Head of Atmospheric, Oceanic and Planetary Physics, University of Oxford. Originally published by the Financial Times on 29 July 2026. Republished with permission. Click here ... Read more

See more news and events