Climate change is said to be the most urgent public health threat of the 21st century (Costello et al., 2009). Risks to health include air pollution, forced migration and changing patterns of infectious disease, compromising physical health and mental wellbeing; effects that are more likely to impact on vulnerable populations (Solomon & LaRocque, 2019;Watts et al., 2018). In 2015, the United Nations produced the Sustainable Development Goals as a call for action to end poverty, protect the planet and establish peace and prosperity for all (United Nations, 2015). The International Council of Nursing (2018) has called for nurses to act as leaders in building climate resilient health systems by, for example adopting sustainable healthcare practices, engaging in health and climate research and developing climate-informed health programmes. Yet delivering healthcare contributes to climate change through greenhouse gas emissions, the use of toxic materials and the production of vast amounts of waste (Griggs et al., 2017;Richardson et al., 2016).Anåker and Elf (2014) argue that awareness of sustainability and the consequences of unsustainable development will prepare nurses for future challenges.