In 2022, the United Nations Environment Assembly passed the Animal welfare–environment–sustainable development nexus resolution, which recognised that animal welfare can contribute to addressing environmental challenges, promoting the One Health approach, and achieving the United Nation’s Sustainable Development Goals. A new report by the World Federation for Animals aims to provide the United Nations, Member States, intergovernmental organizations, and other stakeholders with an initial exploration of how improving animal welfare can help tackle the planetary crises and accelerate sustainable development. The report discusses the important links between animal welfare and biodiversity, climate change, pollution, health, food security, and livelihoods.