The links between the environment and infectious diseases are extremely complicated with many factors to consider. With a novel virus like COVID-19, there are still many unknowns. In this episode, we ask expert ecologist, Dr Kris Murray, about the emergence of COVID-19 from bats in the Wuhan food market and how this relates to environmental change. Dr Rachel Lowe enlightens us with the latest evidence on environmental influences on other diseases, and what this could tell us about COVID-19 transmission risk in the future.