Towards a climate positive future
ONCRA is the Open Natural Carbon Removal Accounting framework, developed to foster removal and storage of carbon dioxide with nature-based solutions.

The accounting framework for creating carbon credits with nature-based solutions.

UN Framework
Use established frameworks and methods, UN rules and IPCC science, stating that emission reduction alone is not sufficient and carbon removal is necessary.

Oxford Principles
ONCRA uses empirical data and scientific methods to account true carbon removal, offering reputation safe credits for the world’s best buyers.

Foundation
Expanding the carbon removal sector with a bank, regional governments and removers in seaweed, bamboo, agroforestry, rock weathering and more.

What is ONCRA?
ONCRA stands for Open Natural Carbon Removal Accounting. ONCRA is a framework for carbon removal accounting, to create carbon removal credits based on scientific data-driven empirical crediting methodologies. ONCRA was developed to deliver rigor and support innovation, by carbon removers and with partners like ASN Bank and the regional governments of Zuid-Holland and Gelderland in the Netherlands.
“In addition to Land Stored Carbon, ONCRA uses sectoral accounting protocols for Construction, Ocean and Rock Stored Carbon to push innovation in the emerging carbon removal sector.”



A reputation safe approach for the world’s best buyers
ONCRA Carbon Removal Credits are not just carbon credits. As a result of our holistic approach we perform a ‘doughnut check’ on the projects, evaluating benefits like more biodiversity, clean water and meaningful jobs. ONCRA credits represent projects with ‘multi-potent’ benefits, ticking several Sustainable Development Goals (SDGs). Read more about Doughnut Economics.
We advise our credits for buyers adhering to the Oxford Offsetting Principles. The Oxford Offsetting Principles were established to reduce risks associated with existing offsetting schemes.
Read more about the Oxford Offsetting Principles.
CRCs for your project?
Are you a carbon farmer, seaweed grower, enhanced weathering innovator or bio-based builder removing carbon via nature-based solutions? Then ONCRA offers a bespoke open source accounting framework for carbon removal, at no upfront cost, managed by Climate Cleanup Foundation, a public benefit organisation. We are independent and certification is based on science, measured data and empirical crediting principles.
