Since 2013, there has been “traffic light” labelling system on food packaging to help consumers understand the nutritious value of their food. There has been suggestions of a similar labelling system so that consumers can understand the environmental impact of their food, for example how far the food has travelled to reach the shelves of their local supermarket. Tesco did try this in 2007 however stopped five years later as it required huge amounts of research into every product and therefore large investments of time and money.
Having said that, this method of raising awareness may become extremely useful in the future as global population grows and unsustainable food habits worsen environmental impacts.
“Climate Change: Answers to Your Most Asked Questions” BBC News (2019)