If we really want to avoid climate change and conserve the ecosystems on which we all depend, it’s clear that we have to tackle both what we produce and consume. To progress this work, WWF believes that the UK government and retailers need to urgently develop and promote eating habits based on a sustainable diet if we are to address climate change, protect ecosystems and start to reverse the impacts of poor nutritional choices and promotions on people’s health. Led by the Department of Environment, Food and Rural Affairs and the Department of Health, the UK government should define.