Improving public health by tackling climate change

Across the world, climate change is now responsible for substantial mortality and morbidity, through direct effects on health and also by threatening the determinants of health. This commentary argues that adaptation policies to enhance resilience to adverse climate events are important, but must be coupled with determined action to reduce greenhouse gas emissions. The prize is synergy: many such policies, for example concerning food, travel and community engagement, can simultaneously improve physical and mental health.