Government obesity policies in England over the past three decades have largely failed because of problems with implementation, lack of learning from past

Policymakers around the world are relying on the expertise of scientists to help make decisions around the COVID-19 pandemic. But how do scientists learn to advise policymakers? Noam Obermeister from Cambridge’s Department of Geography argues that this has been overlooked in the past, and suggests how studying their learning might help us prepare for future emergencies.