Last updated 8 months ago
Cardano users lack ways to tap environmental markets, capping APY, TVL, and access to transparent environmental RWAs. A native issuance and bridge is needed to unlock scalable, green finance growth.
Thallo bridges verified environmental RWAs to Cardano, enabling on-chain issuance, trading, and retirement to boost APY, TVL, and access to transparent, innovative financial products.
This is the total amount allocated to Proof-of-Climate: Verified Environmental Assets on Cardano.
Please provide your proposal title
Proof-of-Climate: Verified Environmental Assets on Cardano
Enter the amount of funding you are requesting in ADA
365000
Please specify how many months you expect your project to last
12
Please indicate if your proposal has been auto-translated
No
Original Language
en
What is the problem you want to solve?
Cardano users lack ways to tap environmental markets, capping APY, TVL, and access to transparent environmental RWAs. A native issuance and bridge is needed to unlock scalable, green finance growth.
Supporting links
Does your project have any dependencies on other organizations, technical or otherwise?
Yes
Describe any dependencies or write 'No dependencies'
Native token functionality and smart contract execution on Cardano. Integration with existing Cardano blockchain APIs and wallet modules: Required for Cardano-based wallet interactions.
Will your project's outputs be fully open source?
Yes
License and Additional Information
Yes, partially open source. Tokenization contracts will be open source, but the backend bridging technology will not. This is largely to protect the assets in custody and maintain a low risk RWA ecosystem.
Please choose the most relevant theme and tag related to the outcomes of your proposal
RWA
Describe your established collaborations.
Strategic partner supplying credits via Thallo’s bridge, trading them on our marketplace, and co-hosting workshops to advance blockchain carbon markets.
Registry partners providing high-quality credits with social and environmental co-benefits, tokenized through Thallo’s bridge to deliver diverse, trusted assets on-chain.
Describe funding commitments.
SCB amongst other suppliers are committed to transferring at least 10,000 credits into the Thallo ecosystem to be bridged onto Cardano.
While registry integrations are not direct funding, they are committed to supporting Cardano integration. Notably, Thallo is the only market player able to bridge from all three registries (SOCIALCARBON, Puro.earth, BioCarbon), ensuring unmatched supply and ecosystem depth.
Describe your key performance metrics.
KPIs:
Bridge and tokenize at least 10,000 verified carbon credits within the project timeline.
Achieve ≥5 active partnerships with registries and/or carbon credit suppliers integrated on Cardano.
Enable end-to-end on-chain credit retirements with public verification available via Cardano explorers.
Please describe your proposed solution and how it addresses the problem
Cardano users have very limited ways to participate in environmental markets. This restricts opportunities for generating sustainable yield, growing total value locked, and building innovative products on Cardano. The lack of native issuance and trusted bridges for real world environmental assets means the ecosystem cannot easily integrate high quality carbon credits or similar assets into its financial infrastructure.
Thallo will solve this by creating a secure bridge and smart contract system that brings verified, registry-issued environmental assets onto Cardano. The bridge will connect directly to established carbon credit registries and synchronise verified asset data to Cardano using a dedicated metadata schema. This ensures that every credit tokenized on-chain is authentic and backed by registry records. The smart contract layer will manage issuance, trading, transfer, and permanent retirement of these credits, with integrated wallet support for simple user interaction.
Once on-chain, these assets can be integrated into lending pools, used as collateral, or combined into liquidity pools. This creates opportunities for higher APY by stacking returns from traditional DeFi rewards with the potential appreciation or revenue sharing from environmental assets. By introducing a new, transparent asset class to Cardano DeFi, Thallo will drive TVL growth and broaden the ecosystem’s economic activity. Developers will be able to build new applications such as eco-backed stablecoins, climate-linked derivatives, and regenerative finance tools, further strengthening Cardano’s position as an innovation hub.
The platform will prioritise onboarding projects from the Global South, especially Africa, to give developers direct market access and a higher share of revenue from credit sales. This supports economic growth in emerging markets while positioning Cardano as the leading blockchain for transparent and impactful climate finance.
The core of the solution involves:
Bridge Architecture
Smart Contract Layer
DeFi Integration & Financial Innovation
Global South Impact
Security, Compliance, and Governance
Outcome: A production-ready, registry-integrated carbon credit marketplace on Cardano, expanding ecosystem utility, creating new yield opportunities, increasing network transactions, and driving capital to high-impact environmental projects.
Please define the positive impact your project will have on the wider Cardano community
Integrating Thallo’s environmental-asset rails into Cardano would instantly give the network a credible, on-chain market for high-quality carbon credits. Every purchase or retirement of a credit would be recorded immutably on Cardano, eliminating double-spending and letting companies, regulators and everyday users verify climate claims in real time.
Beyond transparency, the move unlocks a wave of green-finance innovation: developers could wrap or collateralise these credits to mint eco-backed stablecoins, structure yield pools or build climate-linked derivatives—channelling capital to real-world carbon-removal projects while expanding Cardano’s DeFi toolkit.
The result is a cleaner brand, new revenue streams and stronger network effects that can draw sustainability-minded builders and investors into the Cardano ecosystem.
Access and democratisation of green finance: By leveraging Cardano’s blockchain, environmental assets become more accessible to a broader audience in Web3. This democratization of access means that not only large corporations but also smaller enterprises and individuals can participate in carbon markets to drive finance to sustainable initiatives. The ease of entry and interaction facilitated by Cardano’s technology can empower more entities to contribute to sustainability efforts, thereby amplifying collective impact.
Trust-by-design carbon retirements: Once used to make an environmental or carbon-neutrality claim, a carbon credit is retired and cannot be re-used. That said, due to its opaque structure, one of the main challenges in the market is the lack of transparency and auditability. Cardano’s blockchain can provide an immutable, transparent ledger of transactions that ensures each retirement is recorded and verifiable. This transparency helps build trust among all stakeholders, from environmental groups to regulatory bodies and participants in the carbon market, ensuring that each credit’s retirement is documented and permanent
**Guaranteed credit legitimacy: **The authenticity of carbon credits is critical to their value and effectiveness. Thallo accesses the broadest range of environmental assets in the Web3 market which can be supplied, on demand, to Cardano users.
Development of New Financial Products - New DeFi primitives: The integration of environmental assets on Cardano’s blockchain opens the door to the creation of novel financial products. Developers can utilize these assets to craft new types of securities, derivatives, and partially collateralise existing stablecoins or loan pools with environmental assets. These innovations have two main benefits: the provision of capital to the carbon-removing projects across the globe and the collateralization of novel assets within the protocols that will increase in value over time.
**Driving Engagement and Adoption: **By supporting environmental assets, including carbon credits, Cardano can appeal to a wider audience, especially those committed to sustainability. Whilst we appreciate that the direct impact of the Cardano protocol will be limited, the emerging intersection with AI and LLM will inevitably increase the emissions of those using the ecosystem. This can drive increased adoption of the Cardano blockchain, as users looking for eco-friendly blockchain solutions may prefer Cardano for their transactions and projects.
Creating New Economic Opportunities: For the Cardano community, the introduction of environmental assets opens up new economic opportunities. Community members can participate in trading, investing, or developing new products around these assets. This can lead to the growth of a new ecosystem within the Cardano community focused on green finance and sustainability.
**Educational and Collaborative Benefits: **Hosting environmental assets on the Cardano protocol provides a learning platform for the community. Thallo can provide insights into the complexities of carbon and renewables markets and environmental regulations, enhancing community understanding and skills. Moreover, it fosters collaboration among community members who share a common interest in sustainability, leading to innovative projects and partnerships.
Enhancing Protocol Utility and Value - Network flywheel: By diversifying the types of assets managed on Cardano, the protocol increases its utility and overall value. As more users engage with the platform for environmental asset transactions, the intrinsic value of Cardano's network grows, benefiting all community members through increased network effects and potential token appreciation. More asset types → more use cases → more transactions → stronger network effects and potential ADA appreciation.
What is your capability to deliver your project with high levels of trust and accountability? How do you intend to validate if your approach is feasible?
Thallo is the premier entity in the tokenization of legitimate carbon credits, uniquely positioning us to deliver this project. We have already built and deployed similar bridging and tokenization infrastructure off-chain, processing high transaction volumes and onboarding multiple registries.
This means we understand the technical, operational, and market complexities better than anyone else in the space and can now bring a proven model natively to Cardano.
We were the first entity to build a two-way bridge with an existing carbon registry and to this day maintain the widest array of choices and access to the most extensive supply of legitimately registry-issued carbon credits in Web3. With strong working relationships already in place with recognised registries and project developers, including in the Global South, high-quality credits will be available for on-chain issuance from the moment the bridge is live.
**Thallo has already bridged over $500k TVL of carbon credits on- chain (not including off-chain credits). **
Our leadership team brings a combined 30 years’ experience in sustainability, market development, and technology. Our technology team has a proven track record of delivering products that have processed over $millions in transactions, demonstrating our ability to operate at scale and securely manage substantial value. In previous deployments, we have successfully integrated environmental assets into DeFi, generating attractive APY and growing total value locked, experience that directly informs how we will maximise these outcomes for Cardano.
We are highly experienced in navigating registry requirements, international sustainability frameworks, and blockchain compliance standards, ensuring that this project will launch with full integrity and avoid reputational or regulatory risk. Our disciplined approach to project delivery includes milestone-based development, independent security audits, transparent reporting, and prudent treasury management, ensuring funds are used efficiently and accountably.
This blend of proven delivery, established partnerships, deep market expertise, and rigorous operational governance makes Thallo uniquely capable of delivering a secure, scalable, and high-impact environmental asset market on Cardano one that drives APY, TVL, adoption, and long-term network value.
Milestone Title
Milestone 1: Bridge Development & Deployment
Milestone Outputs
Objective: Establish the core bridge between selected carbon credit registries and the Cardano blockchain, enabling verifiable, registry-backed data synchronization.
Scope of Work:
Design and implement a bridge architecture for off-chain to on-chain carbon credit data synchronization.
Develop connectors/APIs to interface with at least three targeted registries (e.g., BCS, Puro, Social Carbon).
Implement data validation and verification layer to ensure registry data integrity before on-chain representation.
Map registry data formats to Cardano-compatible carbon credit metadata schema.
Conduct internal unit and integration testing on the Cardano Testnet.
Deliver technical documentation for bridge design and registry integration processes.
Acceptance Criteria
Deliverables:
Evidence of Completion
Milestone 1 will be considered complete when the bridge is deployed to the Cardano Testnet and successfully synchronises sample registry data from at least one integrated carbon credit registry.
Proof will be provided through:
These outputs will make it simple for Catalyst auditors and the Cardano community to independently verify that the bridge works as intended, that the data integrity checks are functional, and that the metadata schema correctly reflects registry standards.
Delivery Month
4
Cost
90000
Progress
40 %
Milestone Title
Smart Contract Development for Carbon Credit Tokenization
Milestone Outputs
Objective: Build and deploy Cardano-native smart contracts enabling issuance, transfer, and retirement of tokenized carbon credits.
Scope of Work:
Acceptance Criteria
1. Wallet Integration Enabling End-to-End Testnet Transactions
Cardano Wallet (Yoroi, Eternl) will be fully integrated with the Testnet smart contracts.
Users will be able to:
2. Contract Documentation Including Schema and Transaction Flow Diagrams
Full technical documentation for the smart contracts will be delivered, covering:
Evidence of Completion
Milestone 2 will be considered complete when fully functional smart contracts for carbon credit issuance, transfer, and retirement are deployed on the Cardano Testnet and proven to operate as intended.
Proof will be provided through:
Delivery Month
6
Cost
100000
Progress
70 %
Milestone Title
Milestone 3: Testing, Security Audits & Pilot Transactions
Milestone Outputs
Objective: Validate the bridge and smart contracts under real-world scenarios, ensuring security, performance, and user experience before Mainnet launch.
Scope of Work:
Conduct third-party security audits of bridge infrastructure and smart contracts.
Perform load testing to assess performance under high transaction volume.
Synchronize real-world registry data for pilot credits and verify on-chain representation.
Run beta tests with pilot users including ADA and USDA holders.
Gather and address user and auditor feedback, implementing fixes as required.
Finalize compliance review for registry-linked transactions.
Acceptance Criteria
Audit Reports with Resolved Vulnerabilities
Independent third-party security audits will be conducted on both the bridge infrastructure and the smart contracts prior to Mainnet deployment.
The audit will cover:
2. Pilot Testnet Transaction Records and Feedback Analysis
A structured pilot phase will be run on the Cardano Testnet with selected early adopters, including ADA and USDA holders, and registry partners.
The pilot will demonstrate a complete asset lifecycle: issuance → transfer → retirement.
The deliverable will include:
Evidence of Completion
Milestone 3 will be considered complete when a pre-Mainnet deployment package is prepared, containing the essential components required for Mainnet launch in the next phase.
Proof will be provided through:
Updated Technical Documentation:
Pilot Testing Summary:
Delivery Month
9
Cost
95000
Progress
90 %
Milestone Title
MVP Mainnet Launch
Milestone Outputs
Objective: Release a production-ready, registry-integrated carbon credit trading solution on Cardano Mainnet.
Scope of Work:
Deploy audited smart contracts and bridge to Cardano Mainnet.
Enable verified carbon credit trading for early adopters.
Launch first live registry-backed carbon credit transactions on Cardano.
Provide onboarding materials and documentation for issuers, buyers, and retiring entities.
Initiate marketing and outreach to onboard registry partners and liquidity providers.
Acceptance Criteria
1. Mainnet Deployment of Contracts and Bridge
2. Public Documentation and Onboarding Guides
Evidence of Completion
Milestone 4 will be considered complete when the first batch of registry-backed carbon credits is successfully bridged to Cardano Mainnet and processed through at least one full transaction lifecycle.
Proof will be provided through:
Bridged Volume Confirmation:
Mapping and Verification File:
Demonstration Summary:
Delivery Month
12
Cost
80000
Progress
100 %
Please provide a cost breakdown of the proposed work and resources
Development Costs – 140,000 ADA
Integration with Registries & Partnerships – 50,000 ADA
Testing and Security Audits – 95,000 ADA
Marketing and Launch – 80,000 ADA
Total Budget – 365,000 ADA
How does the cost of the project represent value for the Cardano ecosystem?
Value for Money
The cost of the project reflects both the scale of Thallo’s mission and the direct economic benefits it will deliver to Cardano. By creating a secure bridge and smart contract framework for verified environmental assets, this project introduces a new asset class that can be deployed in DeFi to boost APY, increase total value locked (TVL), and expand Cardano’s role in global sustainable finance.
Catalyzing New Markets and Yield Opportunities
Onboarding carbon credits, biodiversity units, and other verified environmental assets onto Cardano unlocks entirely new market activity. From launch, the project will bridge at least 10,000 verified carbon credits from recognised registries, providing immediate liquidity for on-chain use. These assets can be used as collateral, integrated into liquidity pools, or wrapped into eco-backed stablecoins, including potential integration with a Cardano-native stablecoin. This creates multiple yield pathways for DeFi users, drives TVL growth across the network, and increases transaction volume and liquidity.
Efficient Integration with Existing Infrastructure
The solution builds directly on Cardano’s native capabilities, including Plutus smart contracts, tokenization standards, and the Elabs Wallet, to minimise costs and reduce technical risk. Leveraging this existing infrastructure accelerates delivery of new yield-generating tools without the need for a parallel technology stack, while enabling seamless connection to Cardano’s stablecoin ecosystem for enhanced collateralisation and yield stability.
Driving Adoption and Network Effects
By enabling transparent, verifiable trading and retirement of environmental assets, Thallo attracts corporates, investors, NGOs, and retail users seeking both impact and financial returns. Immediate availability of 10,000 bridged credits from launch ensures there is meaningful supply to activate liquidity pools and yield products, helping grow TVL, stimulate APY opportunities, and create a stronger, more diverse Cardano economy.
Long-Term Sustainability and Scalability
Thallo’s revenue model, which includes transaction fees, registration costs, and protocol usage, scales directly with TVL growth. As adoption increases, APY potential rises, creating a self-reinforcing cycle of participation and liquidity. The platform is designed to expand into new asset classes and jurisdictions, ensuring that Cardano benefits from a growing pipeline of high-quality, yield-bearing environmental products, fully interoperable with the Cardano stablecoin ecosystem.
Terms and Conditions:
Yes
Core project Team
Thallo is led by Joseph Hargreaves (Project Lead) and Brandon Nazek (Tech Lead), combining deep sustainability expertise with proven technical delivery.
Joseph Hargreaves brings over 12 years of specialised experience in sustainability and extensive relationships across the carbon markets. His direct connections with project developers, registries, and demand-side clients ensure access to high-quality environmental assets and key distribution networks.
Brandon Nazek has over 15years of experience in software development, including the development and launch of the worlds first two way carbon credit bridge with blockha He oversees the architecture, development, and security of Thallo’s technical infrastructure.
Thallo is supported by Emurgo Labs as a core development partner. The Emurgo Labs team includes:
**Ahmed Hadded (Product Manager) **– Over 8 years of experience in blockchain and Web3 product delivery. Skilled in building both Cardano and EVM-compatible dApps, with specific expertise in designing carbon credit tokenization workflows, registry integrations, and user onboarding processes.
Taos Valentinos (CTO) – A specialist in Cardano development with 9+ years in technology and a focus on Aiken and Plutus smart contracts. Experienced in architecting scalable blockchain systems and integrating decentralised infrastructure with enterprise-grade applications.
Katarina Antic: Project Manager
Katarina Antić is a Project and Program Manager at EMURGO Labs and a PhD candidate specializing in blockchain, AI, emerging technologies and strategic management in IT projects. At EMURGO Labs, she manages complex, multi-stakeholder programs, most notably the SDG Blockchain Accelerator, bridging startups, development partners and technical experts to drive scalable, real-world blockchain adoption. She has extensive experience within the Cardano ecosystem, leading high-impact initiatives, coordinating technical workshops and fostering partnerships that translate blockchain innovation into practical, user-focused solutions.
Ann Lu: Engineering Lead
Ann Lu is a seasoned technology leader with close to 15 years of experience in software engineering and product development. As the Engineering Lead at EMURGO Labs, he heads the technical team, driving innovation and delivering high-quality blockchain solutions from concept to deployment. Ann has led key initiatives such as NODO, EMURGO’s blockchain data infrastructure platform, and USDA, the first Cardano-native, dollar-backed stablecoin, developed in partnership with Anzens
**Cong Lee: Cardano developer **
Cong Lee is a Cardano developer with over 6 years of full-stack engineering experience, specializing in Aiken smart contract development. He has contributed to major initiatives including NODO, EMURGO’s blockchain data infrastructure, and the Yoroi ADA off-ramp. Cong also serves as Technical Lead for the UNDP–EMURGO Labs Blockchain Accelerator, guiding teams in building impactful, SDG-aligned solutions on Cardano
Viet Hung Nguyen: Solution Architect
Viet Hung Nguyen is a seasoned Solution Architect with over 10 years of experience designing and delivering complex technology solutions. Known as our go-to expert for translating business needs into scalable, high-performance architectures, he plays a pivotal role in ensuring project success from concept to deployment within Emurgo Labs and Africa.
Additional developers and blockchain engineers from the Emurgo Labs team will support MVP development, bridge integration, and wallet functionality, ensuring the solution is delivered to a high technical standard.
This combination of sustainability leadership, technical depth, and blockchain-specialist development capacity uniquely positions the team to deliver a secure, scalable, and high-impact environmental asset platform on Cardano.