Archived Webinar

Testing the use of blockchain to build a meta-registry for decentralized climate markets

The Paris Agreement recognizes that Parties may engage in climate markets through decentralized, bilateral cooperative approaches to achieve their nationally determined contributions (NDCs). However, climate markets trade different units, have differences in governance rules, and operate under different technological systems. The differences in these processes constrain market integration and add to the complexity of conducting transactions. Under the Paris Agreement, which relies on a decentralized approach to markets, climate negotiators are still determining whether a centralized infrastructure, such as the International Transaction Log under the Kyoto Protocol, should continue to facilitate communication between registries. Consistent with the bottom-up ethos of the Paris Agreement, the World Bank simulated a Climate Warehouse meta-registry to demonstrate the potential of a decentralized IT approach to link registry systems. This webinar will showcase findings from the simulation as a first step towards exploring the potential of blockchain for sharing and tracking climate markets data across systems and building trust in decentralized climate markets.

About the Presenters

Rachel Mok

Rachel is an Analyst at the World Bank Carbon Markets and Innovation Practice. She is the co-task team lead of the Networked Carbon Markets initiative, which is piloting innovative tools and frameworks to support the next generation of climate markets under the Paris Agreement. Before joining the World Bank Group, she worked as a Research Analyst at the Grantham Research Institute on Climate Change and the Environment to support policy analysis on carbon pricing. Rachel Mok has a MSc in Environmental Technology from Imperial College London and a BSc in Geography with Economics from the London School of Economics.

Susan David Carevic

Susan David Carevic is one of the co-creators of the World Bank Group Blockchain Lab and specializes in blockchain identity and climate related use cases. She created strategic roadmaps to guide technology planning and investments, including the 2015 3-year strategy for the World Bank Group’s internal IT systems, and roadmaps supporting areas of strategic importance, such as datacenter consolidation, integration, collaboration and identity access management. Prior to coming to the World Bank Group, she served as the Refugee Operations Manager and Product Strategist for the U.S. State Department’s Refugee Processing Center in support of their worldwide refugee resettlement program. Ms. Carevic has a M.S. in Management Information Systems from George Washington University and a BA in Political Science and German from Purdue University.

Mert Ozdag

Mert Ozdag has joined the bank last year, specializes in blockchain and IoT related use cases. He designed and implemented blockchain prototypes for supply chain, education, results based finance related use cases. He also delivered various trainings on IoT and Blockchain platforms. Prior to coming to the World Bank Group, he served as Software Development Manager for NEC working on major Telecom, IoT and monitoring solutions.

Stephanie Rogers

Stephanie Rogers is a Financial Specialist at the World Bank, focusing on the development and implementation of innovative financial instruments to address climate change. Stephanie leads the World Bank’s Climate Auctions Program, including the Pilot Auction Facility for Methane and Climate Change Mitigation, and co-leads the Carbon Markets and Innovation team’s work on operationalizing new market instruments under the Paris Agreement. Before joining the World Bank, Stephanie worked on corporate sustainability and risk management at the International Finance Corporation and as an attorney in government and private practice.

Target Audience

Climate change stakeholders, policy makers, researchers, scholars, government, private sector, civil society, NGOs

Questions Submitted


- Nov 30, 2019
Block Chain Technology is a must to protect datas

Joy Mildred Adhiambo

- Nov 29, 2019
Testing the use of block chain to build a meta-registry for decentralized climate markets


- Nov 28, 2019
Testing the use of blockchain to build a meta-registry for decentralized climate markets


- Nov 27, 2019
Still not clear how this block chain works, a transaction is "broadcast" ~ how? by email? who maintains the software that checks the transaction note? how do you join the block chain network? Need a much more basic description of how block chain works


- Nov 28, 2019
Nodes have an API, you sign a transaction with your private key and broadcast (send) it to the network through an API endpoint like any API post request. The nodes are checking and validating the transactions. To join the blockchain network you have to host your own node that become part of the network.


- Dec 4, 2019
where does one get this node from? An API would be what? who provides the private key endpoint? who is paying the nodes to do the checking?
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