We help your business go carbon net-negative to Regenerate the Planet. Certified..

Once certified, we fund your ambition to match the scale of the challenge..

Positive and Negative

What are carbon removal certificates ?


Together with our clients we develop carbon net-negative products and services. By removing carbon from the atmosphere through the production of biochar or wooden building materials we store carbon for a very long time.


After a full life-cycle analysis of the biochar feedstock or wooden building material, the net carbon removals are verified and quantified by an independent third party. The total amount of CO2 removed is then converted into Co2 Removal Certificates (CORCs).


Climate proactive companies can buy CORCs to further reduce their emissions and maybe even become carbon neutral or negative. By investing in CORCS businesses do also support other companies that produce biochar or wooden building materials to scale up production and remove even more carbon.This creates economic drivers to accelerate the development of CO2 removals.

PURO Certification

Companies that produce biochar, wooden building materials, or carbonated building elements can become eligible for PURO certification. Once they become compliant with all requirements and have been audited by an independent party CORCS can be issued and traded in the on-line PURO marketplace.


We need to transition urgently to a zero emission circular economy where renewable energy and raw materials, regenerative agriculture and scaled biochar applications have become the norm. Generation and trading of CORCS can be a vital instrument when it becomes part of business strategies on how to become carbon neutral or even negative


Carbon removal is a crucial activity needed to reach the objective of a zero emissions and carbon neutral economy in 2050. You can start today by buying CORCS!

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Why is carbon removal needed?

We need carbon sinks

Fossil fuels are carbon positive; they add more carbon dioxide (CO2) and other greenhouse gasses to the air. Ordinary biomass fuels are carbon neutral; the carbon captured in the biomass by photosynthesis would have eventually returned to the atmosphere through natural processes like decomposition. Carbon negative technology and thinking transforms the carbon in biomass waste into stable biochar which can remain sequestered in soils or other products. Wooden and carbonated building materials also act as a carbon sink but have a lifetime of 50-100 years after which the CO2 will return into the atmosphere unless the material will be recycled and reused in construction. The result is a net removal of CO2 in the atmosphere.

We need to remove 15 gigatons of CO2 by 2050

We are happy that more and more companies do make commitments to become Net zero carbon or carbon negative by 2050 which will be critical to limit global warming close to 1,5 degrees Celsius. However it will be impossible for the entire industry based on current commitments to reach a zero emission economy by mid-century. Therefore it is necessary that companies take leadership and remove carbon from the atmosphere instead of only offsetting emissions made by others. It is no longer enough to only reduce emissions, we need to go negative.

PURO is packed with best-practise guidelines from science and industry knowledge, all of which sets the standard for quality actions and recognisable impact for the environment.

Your carbon negative partner

1. Touch base

Fill out the contact form or call us, and we can get in touch to arrange a meeting or a phone call.

2. Insight

We can discuss PURO step-by-step and personally answer any questions you may have.

3. Compliance

 We can support you with the fulfilment of all PURO certification requirements, which includes always a life cycle analysis, and an audit carried out by a independent organisation.  If needed we can also conduct a feasibility study and develop a business case for the production and application or sales of biochar.

4. Trading CORCS

After you are up and running and puro certified we can calculate your carbon removal potential and start trading CORCS for you. We can carry out all necessary transactions in the PURO marketplace that are required to perform any trading activity of CORCS.

5. Total coverage

In every phase of the PURO tool, the key personnel working on the project, including our energy and LCA experts, come together for discussions. This creates occasions for cooperative decision making and an opportunity to check to see if various needs can be met.

Learn how to get certificates