The fourth chapter explores the eco-social policy discourse of the OECD by applying the eco-social policy typology. It provides an analysis of how the OECD approaches the integration of environmental and social concerns and addresses the tensions between these policy domains on a discursive level. The OECD’s discourse reveals a nuanced understanding of the interconnections and tensions between environmental and social policies. The organisation acknowledges the detrimental relationship between economic growth and environmental protection, recognising the need for a more sustainable approach to economic development. It emphasises that continued economic growth can lead to environmental degradation, affecting social welfare in the long term. Moreover, the OECD advocates for an integrated perspective that considers both environmental and social dimensions in policy-making. This involves adopting a “well-being lens” or “systems thinking”, which recognises the complex relationships between various policy domains. In terms of addressing the challenges of environmental degradation and climate change, the OECD endorses the concept of a “just transition”. The chapter also highlights the OECD’s emphasis on the knowledge economy within its eco-social policy discourse. The OECD sees investment in research, technology and education as essential for addressing environmental and social challenges effectively with a particular focus on Green Keynesianism themes. While the OECD cannot be considered a Post-Growth organisation, it still promotes a somewhat critical perspective on the value of economic growth.