- Edited
Summary
We are requesting community commentary on the following topics:
- The introduction of Nature Carbon Tonne (NCT) into the Klima treasury via bonding of NCT and NCT liquidity pairs.
- Greater coordination between Klima DAO, Toucan, and other ecosystem participants to most effectively scale environmental asset markets.
Motivation 
The climate crisis requires urgent and collaborative action. We believe that Klima DAO, Toucan, and all adjacent projects are uniquely positioned to align on high-leverage opportunities that drive planet-positive impact. Only together can we best coordinate a response to humanity’s greatest challenge.
In their current state, carbon markets suffer from fragmentation, inefficiency, a lack of uniform data, and limited access. These infrastructure issues silo liquidity and participation, while also providing poor price signals for environmental project developers. As protocols innovating at the intersection of the climate and Web3, we find it imperative to work collaboratively on addressing these challenges. Failure to do so will only lead to increased fragmentation (e.g. multiple token standards for the same underlying assets) and the perpetuation of existing market shortfalls.
Klima DAO has established a strong position as an economic engine for on-chain carbon. We believe it is in Klima DAO’s interest to diversify its treasury with a range of environmental assets. Specifically, we see Klima DAO benefiting from an exclusively nature-based carbon reference token, Nature Carbon Tonne (NCT).
Further, we are motivated to encourage increasing collaboration between ecosystem participants to establish cross-protocol alignment that will most effectively scale environmental asset markets.
As neutral infrastructure responsible for the vast majority of on-chain carbon, our greatest concern at Toucan is not which assets gain the most adoption; rather, it is how we can ensure all on-chain environmental assets share high integrity and data uniformity. With this, we can converge on a Web3 meta-registry of interoperable assets and make meaningful progress in addressing the carbon market’s greatest issues.
About Nature Carbon Tonne (NCT) 
NCT is the second carbon reference token to be launched on the Toucan Protocol.
Klimates are already familiar with Base Carbon Tonne (BCT), the primary reserve asset of the Klima treasury. BCT is the carbon building block of Web3, capturing approximately 85% of the on-chain carbon market share. Further, BCT is underpinned by 4% of all Verified Carbon Units (VCUs) held on the Verra registry, the world’s largest carbon standard.
The Base Carbon Pool was developed in close association with Klima DAO to align with Klima’s theory of change to raise the floor price of carbon. As such, the Base Carbon Pool is highly permissive and accepts all carbon credit types (solar, wind, nature-based, etc.). The Carbon Pool backing NCT, however, is more restrictive and only accepts newer carbon assets that meet nature-based methodologies.
Methodologies:
- Nature-based carbon credits, excluding VM0022
Vintages:
- 2012 and later, with a 10-year rolling acceptance window
Standards:
- Verra, with the plan to support additional registries soon
A detailed report on the gating criteria and design process for the NCT pool can be found here.
NCT will be an ERC-20 token traded on the Polygon network upon launch. Like BCT, NCT tokens will be created when a compatible Tokenized CO2 (TCO2) token is deposited into the Nature Carbon Pool. NCT tokens will be removed from supply when they’re redeemed for a pooled TCO2. Every NCT is backed by exactly one TCO2 and each TCO2 is verifiably linked to one carbon credit in a supported registry.
With the introduction of NCT, the ReFi community has access to a premier carbon asset that’s backed by nature-based carbon tokens well-suited for high-integrity emission compensation via on-chain retirement. It is an asset for individuals, DAOs, protocols, and corporations alike to incorporate into their climate action strategies, while also serving as another building block accessible to Web3 developers.
Design Decisions 
The market response to BCT makes us confident that Toucan Protocol is well-positioned to be the de facto infrastructure layer for on-chain environmental assets. We strongly believe that we’ve developed the most secure and Web3-aligned approach for several reasons:
- Building for a deterministic system: The deterministic nature of smart contracts limits the need to trust central entities and ensures immediate settlement and self-sovereign retirement. Until legacy registries establish a clear process for migrating credits and/or introduce a “tokenized” state, retirement in the source registry is necessary to protect against double counting and guarantee market integrity.
- Enabling decentralization: We are designing for increasing permissionlessness, censorship-resistance, and decentralization over time. This is aided by transparent and irrevocable tokenization.
- Preventing double-counting: the verifiable retirement of carbon credits that point to a Web3 beneficiary address establishes full transparency for the carbon credits’ lifecycle.
- Accelerating the transition to Web3: Carbon markets have been slow to innovate beyond Web1. Our deep commitments to Web3 values and a fully on-chain design will help us leapfrog Web2 models so that we can most efficiently scale markets and expand participation.
Proposal 
We propose introducing Nature Carbon Tonne (NCT) into the Klima treasury via bonding of NCT and NCT liquidity pairs.
Further, we are calling on all ecosystem participants for an open and collaborative effort to most effectively scale environmental asset markets. This collaboration requires coordination on multiple fronts and we’re encouraging the following:
Adoption of consistent data standards
Capturing 85% of the on-chain carbon market share, BCT and its underlying TCO2s have set a precedent for carbon credit metadata within Web3. This ensures that carbon credit attributes — vintage, project type, registry of origin, etc. — are retained on-chain. Consistency in this data structure across protocols and environmental assets will ensure maximum interoperability, liquidity, and reporting capabilities. We encourage other protocols to align with and continue to co-develop the TCO2 data structure. If you’d like to participate in this continued development, let us know (TypeForm) and we’ll invite you to our next working group.
On this front, we’re very excited to leak details of an upcoming partnership between MOSS and Toucan. Very soon, we’ll be releasing a public announcement. In the meantime, we can hint that MOSS represents a large source of liquidity for NCT
Working together to align data, we will establish a unified meta-registry of environmental assets across many bridges, protocols, and source registries. If you’re bringing environmental assets on-chain, we’re here to help. We’ll lend our code, insights, and resources as best we can.
Commitment to Web3 values of open access, transparency, and trustless design
The permissioned, siloed, and opaque nature of carbon markets has held back participation. As new projects come to market, we encourage critical discussion around how such projects align with the Web3 values that are helping to democratize our financial and economic systems.
At Toucan, we’re thinking deeply about our path to decentralization. This requires limiting points of trust, expanding transparency, and evolving toward a fully permissionless protocol that provides open access to our Bridge, Pools, Meta-Registry, and future infrastructure modules. Given that Toucan interfaces directly with existing markets and real-world assets, this process is made more complex and requires deliberate, thoughtful design.
Governance 
Web3 governance is hard and getting it right is critical to a project’s success. On this front, we’ve been quietly piloting a stakeholder engagement forum for launching the NCT Carbon Pool. We call this a Pool Party — the process of meaningful engagement with industry experts to inform the launch of a new carbon pool. This represents an early step in our path toward decentralized governance.
For the NCT Pool Party, Regen Network, MOSS, BICOWG, StarCB, BlockForClimate, Toucan, and Klima DAO all had representatives at the table. This group brought expertise and perspectives from different stakeholder categories.
Together, we designed the gating criteria for NCT and developed a launch plan. Moving forward, we will invite additional participants to make their voices heard. You can signal your interest via the following link: Toucan stakeholder engagement interest form (TypeForm).
Security 
The Toucan codebase was audited by byterocket prior to the BCT launch in October. The BCT contract has now securely held upwards of $100m worth of tokenized carbon assets. NCT shares much of the same code base as BCT and we are therefore confident in NCT’s security. Nonetheless, we have applied for another audit specific to NCT and will provide the updated audit report as it becomes available.
In Closing 
At Toucan, we believe Web3 has a key role to play in helping us urgently address our shared climate crisis. The importance of this cannot be overstated: we are working to secure the habitability of Earth for future generations.
Since launching with Klima DAO in October, we’ve collectively made a strong case for the future of carbon markets to live on-chain. This future is supported by Toucan’s pioneering Bridge, Meta-Registry, and Pooling infrastructure.
Looking ahead and to fully realize our vision for Web3 and the climate, we need both human and programmatic coordination. We’re calling on you to work with Toucan and align your DAO, protocol, corporation, or even yourself.
We look forward to hearing your feedback, questions, and general commentary.
Together, let’s make change
Resources
Taskforce on Scaling Voluntary Carbon Markets Final Report (2021)
Toucan: https://toucan.earth/
Toucan Bridge: https://toucan.earth/bridge
Documentation: https://docs.toucan.earth/
Twitter: https://twitter.com/ToucanProtocol
Community: https://discord.gg/cDbWuZKWxe