Natural carbon removal credits

Onsets are offsets that actually work to reverse climate change. is Climate Cleanup Foundation’s carbon removal credit sales platform. Onsets offers the world’s best natural carbon removal credits to the world’s best buyers. Credits are measurement based and ONCRA certified.

Available carbon removal credits

Are you a company or person looking for nature based carbon removal credits? We propose a three step strategy, advised by Oxford University and others:

  1. Reduce your emissions as much as possible.
  2. Remove more than your left-over emissions.
  3. Regenerate by putting life central with everything you do. Use regenerative offsets.

If this is you, here you find removal credits that each represent a ton (1000kg) of actual CO2 removal. All credits are from regenerative projects implementing nature based solutions and verified by Oncra. You can order up to 50 credits online, if you are looking for more please contact us.

How does it work?

Buy credits

Via Onsets you buy removal credits directly from the removers. One credit equals one ton of carbon dioxide removed. More details and contact information to the remover is found on the removal credit page.

Transparent fees

A transaction fee of 7% is paid to Climate Cleanup, a non-profit foundation, with every purchase. The transaction fee is included in the price and covers the verification, platform and transaction costs as well as a premium for research and development of nature based carbon removal. VAT is excluded in the price.


Once the buying transaction is completed you will receive an order confirmation with your certificate and its unique certificate ID.


Each transaction is recorded in the Oncra ledger. This ensures the uniqueness of projects and credits in the system and facilitates the transparent listing of information on certified projects.


ONCRA Removal Credits are sold at prices that effectively cover the cost of carbon removal, with a premium for research, development and innovation (RD&I). Removers ultimately decide on the price. The current ETS price, the socio-economic damage costs and actual removal expenses are the basis for our advisory price point. Ton-year accounting makes sure that the climate impact of each removal credit is equal over a 100 year timescale, giving more certainty on permanence. Prices are including a 7% certification fee and excluding VAT (21% for buyers in The Netherlands, 0% in other countries).

ONCRA, an open approach to maximise innovation

All credits on Onsets are verified by Oncra (Open Natural Carbon Removal Accounting). Oncra is a framework for carbon removal accounting, that allows issuance of removal credits for carbon removed via Nature Based Solutions. Credits are issued based on measurements and scientifically rigorous empirical crediting methodologies. Oncra was developed to foster innovation and distributed scaling of natural carbon removal towards gigaton scale, by simplifying assessments, reducing the cost threshold and expanding the scope of removal pathways.