An international partnership towards effective decarbonisation of the world economy
A concrete step towards shared climate ambitions in an open coalition for all countries willing to implement compliance carbon pricing and carbon markets.
Where ambition meets action
The voluntary and collaborative initiative brings countries and jurisdictions together around a shared goal: accelerating global decarbonization through carbon markets. By promoting interoperability between national carbon markets and their methodologies, the Coalition puts a price on pollution and turns ecological transformation into an opportunity for development, based on transparent, high-integrity and inclusive criteria. A new economy. A new future — sustainable and fair.
Advancing climate ambition and driving equitable sustainable development through carbon pricing and carbon markets.
The Open Coalition represents a historic step for global climate action, bringing countries and jurisdictions together to accelerate the decarbonization of their economies through international cooperation, joint support, technical exchange and political ambition.
We are laying the foundations for effective carbon pricing to accelerate worldwide, turning decarbonization into a driver of investment, innovation, sustainable development and a better quality of life. Fewer barriers, more alliance and shared pathways to a global decarbonised economy.
By bringing governments, observers and partners together around carbon markets that are integrity-driven, the Open Coalition turns a decisive moment in the climate agenda into concrete action, by building a joint understanding of approaches and advancing long-term interoperability for compliance carbon markets.
BY COALITION
global economy
Cooperation for stronger compliance carbon markets.
The Open Coalition on Compliance Carbon Markets was initiated under Brazil's leadership during its COP30 Presidency and formally launched on 26 May 2026 in Florence, as a collaborative initiative supported by its founding partners. The Coalition is chaired by Brazil and co-chaired by the European Union and China.
Who we are
An open, member-led coalition connecting political ambition with practical technical exchange.
The Open Coalition brings together countries operating or establishing compliance carbon markets, including compliance based emissions trading systems and carbon taxes.
The Open Coalition invites collaboration with observers from relevant countries and jurisdictions, partner organisations and initiatives to expand knowledge and experience.
Members
Observers
