Strategies to Meaningfully Reduce Healthcare Sector Emissions in Pulmonary, Critical Care, and Sleep Practice

Abstract Climate change, fueled by greenhouse gas (GHG) emissions, is a major threat to human health and demands immediate and decisive action. The effects of climate change directly harm the health of patients cared for by pulmonary, sleep, and critical care health professionals while putting healthcare delivery at risk. Ironically, the healthcare sector itself contributes to GHG emissions. In 2024, an American Thoracic Society workshop convened an international work group of adult and pediatric pulmonologists, intensivists, nurses, researchers, educators, healthcare administrators, and healthcare advocates to identify strategies to decrease pulmonary, sleep, critical care, and research laboratory-related emissions; improve quality; and support sustainability. The workshop prioritized strategies with the highest probability of reducing healthcare sector emissions significantly and urgently while considering the short- and long-term impacts of mitigation strategies on safe healthcare delivery and unintended adverse effects on vulnerable populations. Interventions were identified on micro (individual provider), meso (healthcare organization), and macro (regulatory/government/policy) levels. As trusted voices, health professionals and their professional societies are uniquely positioned to advocate for systemic change, ensuring that healthcare not only adapts to the challenges of climate change but also actively contributes to solutions that promote a healthier, more sustainable future for all.