Bridging the silos to tackle climate change, biodiversity loss and pollution

Climate change, biodiversity loss and pollution are individually pressing, yet their interconnected nature calls for more coherent and integrated policy responses. However, knowledge of whether interlinkages among these challenges are reflected in policymaking remains limited. Drawing on insights from the OECD Environmental Outlook, published in 2025, this brief examines how climate change, biodiversity loss and pollution will evolve through to 2050. Through an analysis of national reporting and planning documents across ten diverse countries, it then explores how connections among these challenges are considered in national policymaking before highlighting opportunities for more integrated approaches.