A 10-year journey on the path to the Paris Agreement: achievements and setbacks (DDP/Iddri study)

'This report shows that the Paris Agreement has changed the way countries think and act on climate. We see real progress in governance and policy, but also persistent gaps that cannot be ignored,' said Sébastien Treyer, Executive Director of Iddri ( Institut du Développement Durable et des Relations Internationales / Institute for Sustainable Development and International Relations).

Taking stock of what has happened in 21 countries (representing a diversity of geographies, stages of development and sizes) since the Paris Climate Agreement in 2015, such is the purpose of the Deep Decarbonization Pathways’ (DDP) and Iddri's report, published on 06/10/2025.

The report, titled ‘A Decade of National Climate Action: Stocktake And The Road Ahead’, shows that the Paris Agreement has had a real impact at national level in every part of the world, changing the way countries think and act and spurring new approaches to climate governance and policy in countries. However, the report highlights that their transitions are far from over. It identifies what needs to be done to achieve this…