The Collaborative Instruments for Ambitious Climate Action (CI-ACA) Initiative

Announced in COP22, the CI-ACA initiative assists parties in the development of carbon pricing instruments for implementing their Nationally Determined Contributions (NDC) under the Paris Agreement and foster cooperative climate action with other jurisdictions. It builds on existing NDC support projects, promotes awareness of carbon pricing and explore possibilities of joining carbon markets. CI-ACA projects are implemented with the assistance of the Regional Collaboration Centres.  

Background, Purpose and Donors




The CI-ACA initiative at SB50 Bonn Climate Change Conference

As part of the SB50 Bonn Climate Change Conference, CI-ACA organized with excitement the following side-event: ''Considering the adoption of carbon pricing to meet Paris Goals: Experience and way forward''

Read more about the event and the panel presentations of CI-ACA activities.


Study on cooperative MRV as a foundation for a potential regional carbon market within ASEAN

UN Climate Change’s Regional Collaboration Centre in Bangkok, in collaboration with the ASEAN Working Group on Climate Change, completed and released a report on the potential for developing harmonized approaches to the measurement, reporting, and verification of greenhouse gas (GHG) emissions among southeast Asian countries as a possible first step towards further regional cooperation on carbon pricing instruments. More details can be found here.

The country and synthesis reports can be found below:

Synthesis Report Brunei Cambodia Indonesia Laos
Myanmar Singapore Thailand The Philippines Vietnam



Concluded Events

Validation Workshop
Dakar, Senegal
20 December 2018

An increasing number of countries, including Africa, have begun to consider the opportunity to introduce carbon pricing instruments for their climate action, as provided in their National Determined Contribution (NDC) under the Paris Agreement. Read more on:

Carbon Pricing as a Tool to tackle Climate Change
Katowice, Poland
14 December 2018

Countries are increasingly using or considering to use carbon pricing instruments as a means to achieve their commitments under the Paris Agreement, and examples were presented this week at the UN Climate Change Conference (COP24) in Katowice, Poland. Read more>>

Dominican Republic Successfully Concludes its Carbon Pricing Study

Santo Domingo
22 November 2018

Latin America and Caribbean Climate Week 2018

Montevideo, Uruguay
20-23 August 2018
Radisson Victoria Plaza Hotél

Inlcuding the CI-ACA Side-event on Carbon Pricing