The warming of our planet is, for many reasons, among the most significant issues of our age. But we perhaps don’t give enough thought to climate change as specifically a health crisis. For example, what will happen when new areas of the world are hot and humid enough to support pathogen-carrying mosquitoes? This episode hears from Professor Rachel Lowe of the London School of Hygiene and Tropical Medicine, Professor Jonathan Patz, director of the Global Health Institute at Madison’s University of Wisconsin, and WHO vector control specialist Dr Florence Fouque.