1. World Health Organization . COP26 Health Programme: Country Commitments. www.who.int/initiatives/alliance-for-transformative-action-on-climate-and-health/country-commitments [Accessed 17 October 2023].
2. UK Government . Health and Care Act 2022: NHS England: duties in relation to climate change etc. www.legislation.gov.uk/ukpga/2022/31/section/9/enacted [Accessed 17 October 2023].
3. Operating in a climate crisis: a state-of-the-science review of life cycle assessment within surgical and anesthetic care;Drew;Environ Health Perspect,2021
4. The environmental footprint of health care: a global assessment
5. World Bank . Current health expenditure (% of GDP) | Data. https://data.worldbank.org/indicator/SH.XPD.CHEX.GD.ZS [Accessed 17 October 2023].