The Covid-19 pandemic has shed light on our fragility as societies to zoonoses, illnesses that appear among the animal world and that can spread to human beings. Zoonoses are more likely to spread to humans in a context of loss of biodiversity, fragility of ecosystems, deforestation, urbanisation, etc. At the same time, pollution is growing and having more and more an impact on our health. Climate change is fostering unprecedented crises such as draughts, floods, fires, heat waves, being the cause of potential humanitarian disasters, destabilization, conflicts and migrations. Our health is intrinsically linked to the health of the environment and the Geneva Health Forum will offer a platform to discuss the immense challenges that are  linked to the intertwinement of human, animal and environmental health.