Publications

10 lessons from 10 years of the CDM

5 October 2012 - Climate Report

By Igor SHISHLOV et Valentin BELLASSEN

The Clean Development Mechanism (CDM) is the first and by far the largest carbon offset instrument in the world. To date, it is the only market based on an environmental commodity which managed to attract several billions of euros of private capital on an annual basis. Being the first-of-a-kind climate change mitigation instrument, the CDM followed a ―learning by doing‖ pattern undergoing numerous reforms throughout its more than 10-year history. Although the post-2012 fate of the mechanism remains uncertain, one should not ―throw out the baby with the bath water‖ as the lessons from the CDM experience may be useful not only for the CDM reform but also for new market instruments.

- One of the widely discussed topics is the economic efficiency of the CDM. Despite being largely concentrated on the supply side (93% of all issued credits come from 5 countries), the CDM provided a useful ―search tool‖ to identify new greenhouse gas abatement opportunities although in most cases failed to scale them up across the economies. The lion’s share of the demand for carbon offsets comes from the European Union Emissions Trading System (EU ETS), where the CDM helped companies save millions of euros by reducing emissions where it was the cheapest. With the quantitative restrictions in place, the demand for CDM offsets from projects registered after 2012 will likely dwindle to a few public buyers, dwarfed by the size of supply.

- The CDM has also raised criticism regarding its environmental integrity. For example, there is strong evidence that HFC-23 destruction projects provided perverse incentives for installations to engage in strategic behavior. Besides, there are concerns over the additionality of some large renewable energy projects, in particular in China and India. The transparency of the framework has allowed identifying loopholes and implementing the reforms that have been ongoing since the inception of the CDM.

- Finally, the evaluations of the contribution of the CDM to sustainable development are mixed and largely depend on the project type and national circumstances. The principle of national sovereignty dominates the existing sustainability

To learn more
  • 11/21/2025 Foreword of the week
    How to strengthen climate risk management and supervision to protect financial stability

    Climate change does not conform to business, political or supervisory regime cycles– its adverse long-term impacts lie beyond such horizons. Ten years ago, when Mark Carney highlighted this paradox in his landmark Tragedy of the Horizons speech, climate change was not considered a financial stability risk. Today, European supervisory stress tests estimate up to €638 billion in banking losses over 8 years, while the European Central Bank (ECB) reveals that over 90% of eurozone banks face climate and environmental risks. A key question arises: Is the supervisors’ primary focus on greening the financial system sufficient in the face of rising risks, especially stranded assets? 

  • 11/13/2025
    How solidarity levies can help bridge the climate and development finance gap

    The climate and development finance gap is large and widening, as Official Development Assistance (ODA) declines and needs multiply. With shrinking fiscal space in vulnerable countries, solidarity levies are gaining attention as a predictable source of international finance. Launched at COP28 by Barbados, France, and Kenya, the Global Solidarity Levies Task Force (GSLTF) is the main initiative in this space.

  • 11/12/2025
    Bridging the Finance Gap: Leveraging National and Subnational Public Financial Institutions for Localised Climate and Development Action

    National Public Banks (NPBs) and Subnational Public Financial Institutions (SPFIs), including development banks and agencies as well as climate and green funds at the subnational level, play an increasingly vital role in financing climate action and the just transition. While national governments provide frameworks aligned with nationally determined contributions (NDCs), actual implementation occurs largely at the subnational level, which currently lacks sufficient funding. SPFIs can work as financial intermediaries, as they not only understand local needs and have stronger ties with local governments and businesses, but also access much larger volumes of capital from more diverse sources. 

See all publications
Press contact Amélie FRITZ Head of Communication and press relations Email
Subscribe to our mailing list :
I register !
Subscribe to our newsletter
Once a week, receive all the information on climate economics
I register !
Fermer