Experiment: CO2 labels lead to greener decisions

A field experiment conducted by three universities shows that CO2 labels on food prompted consumers to make more sustainable choices. Information regarding the carbon footprint of meals was displayed on menu displays to more than 8,000 cafeteria visitors. According to the scientists, the greatest effect was achieved when visitors were given information about the environmental costs in euros. This saved almost ten percent in emissions because consumers opted for meals with a lower CO2 footprint.