
Global Tree C-Sink
Version 2.0 Consultation Period
15th July – 11th August 2025
We welcome feedback from all stakeholders during this period. Your input is invaluable to our standard development process, ensuring transparency and informed decision-making.
How to participate
We look forward to your contributions.
Join the Webinar – Global Tree C-Sink V2.0 (English)
Monday, 28th July 2025
16:00 – 17:30 CET
The Global Tree C-Sink is an innovative accreditation framework for climate services generated by living tree biomass, through afforestation, natural regeneration, or other tree planting interventions, such as urban forestry.
Version 2.0 of the Global Tree C-Sink Standard builds on recent developments in high-integrity carbon markets and establishes a robust science-based approach that enables different project types, scales, and regional contexts.
Key innovations of the Global Tree C-Sink Standard include:
- dMRV-focused accreditation, enabling transparent and cost-effective carbon accounting through precise digital tools.
- Dynamic valuation approach for temporary C-Sinks, reflecting the the nature of biomass C-Sinks to ensure fair pricing in voluntary markets.
- Efficient and transparent C-Sink registration and trading, facilitated through the Global C-Sink Registry.
- Integrated environmental and social safeguards, with criteria that promote biodiversity and community benefits.
- Project-specific eligibility and baseline criteria, designed to prevent land degradation and ensure credible climate impact.
- Improved guidance for Urban Tree and Plantation projects.

Here you will find the current version of our standard:

CERES-CERT AG
CERES-CERT AG is the third-party auditing body for the standards owned by Carbon Standards International.
With the experience in the certification of biochar, CERES-CERT AG has the necessary expertise to certify biochar production and processing companies and to validate and verify your climate projects.
Find a list of IT Tools applicable to the Global Tree C-Sink Standard here:
You can find more information and necessary documents in this section:
Here you will find all updates and revisions to the standard:
Here you will find more information about our costs:
If you would like to have Carbon Standards review potential modifications or amendments to the standard, please review the following:
Contact person

Environment and Climate Specialist
+43 664 146 30 94>
elias.torres-sierra@carbon-standards.com

CTO Global C-Sink
+43 664 884 243 23>
matthias.matzenberger@carbon-standards.com