[Editorial] Climate change and health: 10 years on, what next?

The Paris Agreement came into force in 2016, a watershed in collective international action on climate change. That year also saw the creation of the Lancet Countdown on health and climate change, established to track the health effects of climate change and climate action. The past 10 years may have brought disheartening setbacks in climate policy, but there have also been huge advances in the understanding of and attitudes towards climate change.