Fair pathways to net-zero healthcare.

Over the past decade, it has become clear that the health sector is not only at risk from climate change but also a major polluter of greenhouse gases. In November 2021, the World Health Organization and partners launched the COP26 Health Programme for sustainable, climate-resilient and low-carbon health systems, and have since established the Alliance for Transformative Action on Climate and Health to support its implementation. Given the wide variation in health financing, carbon emissions and unmet health needs across the world, fair sharing of the remaining carbon budget and health gains will be critical. In this Perspective, we explore the challenges and opportunities of healthcare decarbonization, outlining the principles of fair pathways to net-zero healthcare that are attentive to health and socioeconomic inequalities within and between countries.