Introducing CO2-Pool [CO2P] – support blockchain decentralization and climate activists

Hi, My name is Stefan. Together with my family, I live in the medium-size town Goettingen in the middle of Germany. I am not an IT professional, my profession is environmental engineering. Since I studied in the 90s, world changed a lot. At my university in Berlin more than 20 years ago, we already discussed topics like climate change. It was somehow theoretically, despite we already saw increase in Carbon Dioxide concentrations and it was clear that this is linked to industrialization since the 19th century. But now, in the year 2020, we can see it very clearly and drastically, what it means. Look at the wast fires in California, Brazil or Australia. We all are responsible to stop that as fast as possible, for us, for the younger generation and for the future generations.

That’s why my son Elias (he is 17 years old) is active in climate action movement, together with lots of other kids, pupils and students worldwide. Like me, he is interested in computer sciences and new techniques. So it was both a challenge and a pleasure for us to build up a cardano stake pool together. Meanwhile, we learned a lot and are still learning (and very thankful about that and the support of this wonderful community). We support the Cardano Single Pool Alliance (CSPA) and also set up some pools in the new testnet, to support further R&D and tests of cardano blockchain protocols.

We called our stake pool CO2-Pool [CO2P], because now we can combine our support of decentralized (energy saving) PoS-Blockchain technology of Cardano, and support climate activists from our pool owner rewards. For more information, please check our website or Twitter and feel free to contact us. We will answer within short time.

Ticker: [CO2P] Pledge: 25K Fixed fee: 340 A Variable Fee: 1.95 %

Website :

Contact: Mail:

Twitter: @Co2Pool

Discord: #8811

Telegram: @CO2Pool

Pool-ID: 11cad31f95526b86724c84b818228fc2500bca5ce9b2864a85b94058

Location : Germany, Goettingen (Lower Saxony)

Pool-Infrastructure and redundancy : relays and node hosted in Germany at 2 independent locations, on 3 different (climate neutral operated) Hetzner Cloud Servers: Ubuntu-Linux on 2-core CPU, 4 G RAM, 40 GB SSD. Everything scalable according to the technical requirements. ``

Operator experiences: A lot of idealism, general technical expertise, part-time experience with Linux and server administration , and the ability to give and get support when needed.

Why should users/delegates support our Pool?

We strongly believe that the Cardano Blockchain can help revolutionize the global financial system. Furthermore, the system contains elements that are very important for direct democracy - the democratic society of the 21st century. We are neither financial actors nor mere computer experts, but we see the importance of our pool in connecting these worlds with the activists who are working today for a better world of tomorrow. With CO2-Pool we want to build a bridge and anchor issues like Blockchain, DeFi and Voltaire in the social and political movements.

If you are only interested in earning money and having the highest possible RoS, you are certainly out of place with our (small) pool. However, we are happy about any support from delegates, which enables us to produce blocks regularly with our pool.


Actually, our pool has a margin of 2,3 %. Half of this margin is for charity purposes, donating to GreenForestFund or any other climate protection initiative. In 2020, wie donated 50 € to GreenForestFund, who will buy and save 10 m² of Forest with it. Our aim is that we are able to donate at least 500 € in 2021 from our pool owner rewards/margin. Today, we got support from a big ADA Whale who delegated 3,5 Millionen ADA to our pool. Thank you very much, whoever you are! This will help us a lot to reach our goals. Now we are able to mint blocks constantly from epoch 242, and to pay out rewards from epoch 244 constantly. We are still looking for new delegators to get a high active stake amount! Please support CO2P, this will both support blockchain decentralization (we are a single Pool!) and climate protection initiatives. Also you will get high rewards. Absolutely WIN-WIN for all sides!


We warmly welcome our new 3 delegators! We now have an active stake of more than 3.5 M ADA, which will help us to mint at least 2 Blocks in epcoh 242 (and hopefully more in the epochs to come). Dear delegators, stay tuned. Now it’s granted that you will get rewards from our pool performance, if you stay. And we are able to collect our pool rewards and to donate half of them to help stopping climate change.

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Today, we got 3.2 M Ada additional stake from IOHK delegation program (retired IOG pools). This will be effective as active stake in epoch 247 (begin Feb. 9th), so that total stake then will be at app. 6.73 M ADA. At the moment, we are minting 2-3 blocks each epoch, from epoch 247 it will be app. 5 blocks or more. Actually (epoch 244) our return on stake (ROS) is 5.54 % for our delegators.
Our pool is far from being saturated, so new delegators are welcome! We will use the next weeks for additional marketing efforts and thank IOHK a lot for supporting us with their delegation. Our Pool (Relays, Node) is ready for new challenges, everything is up to date (cardano-node-version 1.25.1) for Mary Hardfork. Exciting times to come! We are very proud to be part of it. We support decentralization of cardano blockchain by only running one single pool (we are member of cardano single pool alliance, and try to connect ClimateAction with cardano project (actually, we donated to Green Forest Fund and saved 10m² of forest. In 2021, we will try to save additional 100m²). You can support this by delegating to our Pool CO2P. We are also member of cardano mission driven pools,, were delegators can find a lot of other purpose pools, too.


We recently made a survey on use of energy for stakepool operation and calculated the efforts to make Cardano the first climate-neutral blockchain. It is astonishing that this goal can be achieved very easily and we started an initiative to do this now.For more details, please visit our blog at Cardano as a climate-neutral blockchain ? - CO2POOL — Stakepool für die klimaneutrale Cardano Blockchain

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Some news about our pool:

  1. We have lowered our pool’s margin from 2.3% to 1.9%. And we decided to donate 100% of this margin to climate action (before, it was 50%). Donation is every 3 months and we ask our delegators, to whom we should donate.

  2. End of march, we donated the first time to TreesForLife - were we created the Cardano grove, dedicated to Ada Lovelace. See here: First donation was a total of 544 GBP for creating a corporate grove to rewild the Caledonian Forest in Scottland and planting of initial 50 trees. Delegators and supporters can add their trees, too.

  3. End of June, we donated additional 900 GBP (or 1,044 € / 1,242 USD) for planting 150 more trees in the Cardano grove. Now these grove have 201 trees (one came from a supporter).

  4. The more delegators and stake we have, the more we are able to collect Ada from our pool owner rewards for donation. Actually, we have ~4.1 M Ada stake. To make our pool and our mission sustainable, we would like to attract more delegators. So we started a promo in June, and delegators can win 100 Ada every 3 epochs for either staking with us or planting a tree in our grove. For more details, see Last time, one of our loyal delegators with a stake of only 324 Ada won additional 100 Ada.

  5. For more info about our activities, please visit our website and our blog-chain on

You are welcome! Together let’s make Cardano climate-neutral!

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CO2POOL is one year old now. We started with the first epoch of Shelleys Mainnet in August 2020.

Today, we have successfully upgraded our server (node and relays) infrastructure to make it ready for the coming hardfork / smart contracts ability of Cardano blockchain. Our whole infrastructure is running on renewable energy, even our website is hosted “green”.

Actually, we have 95 delegators and more than 4.1 M Ada stake. We mint blocks regularly and have already minted more than 200 blocks (actually 2 - 4 blocks every epoch).

We are 100% dedicated to a climate-neutral Cardano blockchain and we have already donated for 200 trees in our Cardano grove,

New delegators always appreciated! If you need support, don’t hesitate to contact us!

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We have successfully upgraded our Relays and Blockproducer Node in mainnet to Cardano-Node 1.29, which makes our pool ready for Alonzo Hardfork on September 12th. We have already minted some blocks on 1.29.0, so everything works fine!

Stay tuned and follow CO2POOL on Twitter @Co2Pool. Some exciting news to come!
And we will always continue our work to make Cardano a really ecofriendly, climate-neutral blockchain.

We are so proud to be part of the Cardano Foundation / Veritree project to plant a CardanoForest with 1 Million trees! We already contributed to this project with a donation of 2,000 Ada from ower pool owner rewards (that’s the donation for QIII 2021)!

We have had several talks with CF and Veritree within the last weeks, together with our core group of Climate Neutral Cardano Stakepool-Operators, to prepare the first “Initial Tree Offering”. This was a great experience, and we really appreciate the work of all involved in this project.

From the early beginning in summer 2020, as CO2POOL started, it was the mission of our stakepool to make Cardano a climate neutral blockchain. And now we are so close to reach this goal! In a first step, this Cardano forest will offset the emissions of energy consumption of all 2,800 Cardano stakepools.
And we are very prood, that our estimations have been an important base of this project. Necessary CO2 offset measures for Cardano Stakepools

Thank you vermy much for your support of CO2POOL! Please stake with us.


Really great work. You’ve achieved a lot in a short time. The Cardano Forest is going to be a long term win for the entire industry and will likely change how other blockchains operate now Cardano is completely Carbon Neutral for the next year.

We start to see the power of mission driven pools like CO2POOL now, and we all need to extend that power as a community.

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Thank you very much for your kind words! And thank you for your own contribution to this project. I really appreciate this, and it is a pleasure to work togetther with you and other environmental-friendly stakepool Op’s on common projects in this fantastic Cardano community!

We are proud to announce that we are participating at Project Catalyst Fund 7 with an own proposal, together with Shift Pool team and in collaboration with Climate Neutral Cardano group.

A world-map of green Cardano!

For more details see here (registration/login required). We will publish it on our website, soon (so you can read it without login requirements):

Please check out our second proposal (mainly organized by Shift Pool) on Catalyst, too: