As climate change continues to permeate political and social dialogue, an increasing number of food retailers are working to green their corporate image and take the lead in engaging in more sustainable practices. Refrigeration consumes a considerable amount of energy and contributes substantially to greenhouse gas emissions. At ATMOsphere Europe 2015, supermarket giants Carrefour, Delhaize and SONAE MC discussed their use of lean, green, GHG-cutting refrigeration machines.