Certifiers of change
Built on scientific rigor and trust,
we provide the certification infrastructure
that turns carbon removal into a tangible, bankable,
and scalable global asset.



engineered CDR leader
As the leader of engineered CDR, Puro.earth provides the essential infrastructure – registry, standards, and governance – that defines quality, confidence, and stability for global institutions. We replace market volatility with reliability and act as a robust partner, moving the industry from pilot projects to infrastructure-scale reality.
transforming the market
From carbon removal to a tangible, bankable, and scalable global asset
Share of the CDR market
74%
Removed tonnes of CO2
1,656,201
CDR price per tonne
€131.27
Buyers & beneficiaries
800
Registered CDR suppliers
321
Trusted by leading institutions worldwide

trusted asset class
From carbon removals to a trusted asset class
Nasdaq-backed stability
The only registry with the institutional weight and insolvency protection of a global exchange, ensuring long-term market continuity.
Best suited for the next chapter
As the first engineered CDR standard and registry, with deep methodological expertise, we bring the authority and innovation that keep moving the market beyond.
Institutional-grade standard
Our rigorous Puro Standard makes projects financeable by meeting the strict due diligence requirements of banks and infrastructure funds.
Commercial pragmatism
We speed up the path to revenue for suppliers without compromising the integrity of true removal.
Holistic market facilitator
Beyond certification, we offer access to the financial heart of the carbon removal market, connecting buyers, projects, and financial intermediaries.
our methodologies
Methodologies for carbon removal
The Puro Standard provides quantification methodologies for carbon removal. We have certified over 100 engineered carbon removal projects under the Puro Standard, resulting in the issuance of more than 1.5 million CO2 removal certificates (CORCs) in the Puro Registry as verified, traceable, investable assets.
Direct Air Capture and Ocean Storage
This safe, durable and quantifiably robust methodology under Puro Standard can achieve highly permanent carbon removal of 1,000+ years.…
Durability 1000+ years
Microalgae Carbon Fixation and Sinking
MCFS under Puro Standard supports long-term CO2 removal by fostering local microalgae growth on engineered substrates, which then sink…
Durability 200+ years
Terrestrial Storage of Biomass
Under Puro Standard, this methodology is an innovative approach to store carbon for 100+ years. Terrestrial storage of biomass…
Durability 100+ years
Biochar
Biochar is the leading durable carbon dioxide removal technology in both delivery and market liquidity. The Puro Standard brings…
Durability 200+ years
Geologically Stored Carbon
GSC methodologies capture carbon dioxide and store it underground in deep geological formations. It covers both BECCS and DAC-based…
Durability 1000+ years
Enhanced Rock Weathering
Under the Puro Standard, Puro.earth developed the first enhanced rock weathering (ERW) carbon crediting methodology. ERW is a process…
Durability 1000+ years
Carbonated Materials
This methodology under Puro Standard represents an attractive pathway for durable carbon dioxide removal – with a growing interest…
Durability 1,000+ years
Marine Anoxic Carbon Storage
With careful science and transparent risk assessment, MACS has the potential to become an important part of a broader…
Durability 200+ years
resources
Latest CDR insights and updates
- General
Introducing a new Puro.earth brand for a new era of engineered carbon dioxide removal
- Supply
- Puro Standard
- Documents Library
End of Transition Period for Enhanced Rock Weathering Facility Audits against Edition 2022
- Supply
- Puro Standard
Scaling biochar with integrity and innovation
- Puro Standard
Puro.earth to revise Carbonated Materials Methodology
- Supply
- Infrastructure
Puro.earth Launches Puro Issuance Plus to Enable Higher Frequency of Carbon Credit Issuance for Suppliers
- Puro Standard
The path towards safe and effective carbon removal by Marine Anoxic Carbon Storage
- Supply
- Puro Standard
- Documents Library
End of Transition Period for Biochar Facility Audits against Edition 2022
- General
2025: A Year from Innovation to Infrastructure
- General
- Puro Standard
Puro.earth receives ICVCM Approval as Eligible Carbon Crediting Programme
- Supply
- Infrastructure
Puro.earth Expands Digital Infrastructure with Launch of Puro dMRV Connect API