Skip to content

The Puro Standard for carbon removal

Trust, transparency, and credibility matter in the carbon markets. As the world’s first standard built for engineered carbon removal, the Puro Standard provides a credible framework for certifying removals and issuing Puro.earth CO2 Removal Certificates (CORCs). Our methodologies under Puro Standard provide durable removal from 100+ to 1,000+ years.

leading standard

Puro.earth turns verified carbon removals into trusted market assets. We provide the certification infrastructure, rigorous methodologies and transparent Nasdaq-powered registry needed to make carbon removal credible, traceable and scalable. We have certified over 100 engineered carbon removal projects under the Puro Standard, resulting in the issuance of more than 1.5 million CORCs in the Puro Registry as verified, traceable, investable assets.

market asset

We turn verified carbon removals into trusted market assets

Exclusive focus on carbon removal

We only certify durably stored carbon removal. Avoided or reduced emissions are not mixed up in the carbon accounting to ensure the credit reflects true net removal.

Clear durability labels

Our methodologies focus on removing carbon from the atmosphere into secure storage for hundreds to thousands of years. Durability is clearly labelled as 100+, 200+ and 1,000+ years.

Certification with confidence

Puro.earth is an ICVCM CCP-Eligible programme, giving buyers added confidence in the governance, transparency and independent verification behind the Puro Standard.

Market leaders

The Puro Standard supports the largest carbon removal ecosystem, connecting suppliers with buyers and partners through trusted certification and infrastructure.

advisory board

The Puro.earth Advisory Board

Puro.earth’s external Advisory Board, made up of carbon removal experts, oversees the methodologies under the Puro Standard. The Board ensures high carbon credit integrity and upholds the robust principles of a science-based carbon removal standard.

  • Prof. Myles Allen

    Chairman

  • Ali Mashayek

    University of Cambridge

  • Dr. Florian Kraxner

    IIASA

  • Todd Flach

  • Dr. Mai Bui

    Director of Climate Science, Supercritical

  • Ms. Nikki Batchelor

    Director, XPRIZE Carbon Removal

market share

Leading the carbon removal market

Puro.earth’s CO2 Removal Certificates have reached a 74% market share of all delivered carbon dioxide removals globally, which positions us as the industry leader. We move the industry forward with our institutional-grade infrastructure, integrated solutions and high-frequency issuance.

process

Our certification process

Under the Puro Standard, suppliers move through a clear certification journey from submitting a carbon removal claim to independent verification and issuance. We design this process to ensure that every CO2 Removal Certificate (CORC) is backed by rigorous evidence, third-party assessment and transparent registry infrastructure.

Submit a carbon removal claim

In MyPuro, Puro.earth’s certification portal, suppliers submit lifecycle assessment (LCA) evidence showing that their product or process removes more CO2 than it emits.

Independent auditors verify the claim

Independent auditors trained by Puro.earth audit the evidence against the requirements of the relevant Puro Standard methodology. They visit the production facility, assess the accuracy of the data, and issue an audit statement. To support independence, Puro.earth covers the verification costs rather than the supplier.

Puro.earth issues CORCs

Once verification is complete, Puro.earth issues CO2 Removal Certificates (CORCs) in the Puro Registry for each verified metric tonne of CO2 removed and stored.

Generate revenue

Suppliers can then sell or transfer their CORCs to a marketplace, broker, or via a direct contract with buyers seeking high-integrity carbon removal credits.

methodologies

Methodologies under the Puro Standard

Access all methodologies and technical guidance.

related content

See more
about the topic

  • Puro Standard

Methodologies

In 2019, we pioneered the world’s first standard dedicated exclusively to engineered carbon removal. Today, Puro.earth’s infrastructure provides the…

  • Infrastructure

Certification

Puro.earth’s certification process is designed to convert carbon removals into secure, investment-quality carbon credits. Our globally trusted framework utilizes…

faq

Top Puro Standard FAQs