There is a global climate emergency, and also a global health concern related to climate change. The British Society of Gastroenterology (BSG) acknowledges these issues, and supports the concerns of its members to address them. Climate change has adverse effects on gastroenterological and liver disease, and on healthcare systems. The healthcare industry, itself, is also a major contributor to greenhouse gases. BSG has developed a strategy on Climate Change and Sustainability, which encompasses all of the activities of the society, and its members: personal, professional, organisational, political, international and research.