Climate change threatens the health and social security of billions of people. The climate crisis is increasingly affecting health and quality of life in many ways. Rising global temperatures are leading to more frequent and severe extreme weather events, which contributes to further increasing inequality, discrimination and injustice in general and in healthcare in particular. In addition, climatic conditions are increasingly conducive to the transmission of infectious diseases and their spread to new areas. Socio-economically disadvantaged regions with weak health infrastructure (e.g. the global south) will hardly be able to do without specific support. The primary imperative is to achieve reductions in greenhouse gas emissions from transport, energy production and food at global, national and regional levels in order to mitigate negative impacts on health. The 2015 Paris Agreement should also be seen as a key agreement in the field of health. The aim of our contribution is to highlight the ethical aspects of climate change in the health sector. (Lukas Kenner , Samuel Kenner , Barbara Prainsac, more at typeset.io)