Climate change

Climate Change Expert Group (CCXG)


The Climate Change Expert Group (CCXG) is a group of government delegates and experts from developed and developing countries. The aim of the group is to promote dialogue on and enhance understanding of technical issues in the international climate change negotiations. The group normally holds two seminars per year which bring together government representatives, the private sector and civil society in order to share information on climate policies and issues. The CCXG also develops papers in consultation with a wide range of countries. The group is currently working on technical issues under discussion in the international negotiations towards a 2015 climate change agreement. For more information about the work of the CCXG, see the CCXG flyer.


  • March 2015: CCXG Global Forum, OECD Conference Centre, Paris. Summaries and speakers presentations are now available online.



CCXG images no 1

‌ ‌Climate finance image no 2

Adaptation image no 3

Accounting image no 4

Market mechanisms image no 5

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Technology and innovation image no 7

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Fan of CCXG papers 2014

Built to Last: Designing a Flexible and Durable 2015 Climate Change Agreement (May 2014)
Gregory Briner, Takayoshi Kato and Takashi Hattori (2014)

GHG or not GHG: Accounting for Diverse Mitigation Contributions in the Post-2020 Climate Framework (May 2014)
Christina Hood (IEA), Gregory Briner (OECD) and Marcelo Rocha (Fábrica Éthica Brasil)

Scaling up and replicating effective climate finance interventions  (May 2014)
Takayoshi Kato, Jane Ellis (OECD), Pieter Pauw (DIE) and Randy Caruso (OECD)

Establishing and Understanding Post-2020 Climate Change Mitigation Commitments (Oct 2013)
Gregory Briner and Andrew Prag (OECD) 

Exploring Climate Finance Effectiveness (Oct 2013)
Jane Ellis, Randy Caruso and Stephanie Ockenden (OECD)

 All papers released since 2000


December 2014: OECD Participation: UN Climate Change Conference in Lima (COP 20)

September 2014:  CCXG Global Forum, IEA Conference Centre, Paris

June 2014: CCXG side event at  Bonn climate change conferenceon "Designing a flexible and durable 2015 agreement"

March 2014:  CCXG Global Forum, OECD Conference Centre, Paris

All events since 2005

See also: IEA work on climate change



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