Could you be harming the environment with the simple act of biting into a sandwich? If a fresh study is to be believed, yes. Last month, researchers at the University of Manchester announced that they had concluded “a first-ever study looking at the carbon footprint of sandwiches, both home-made and pre-packaged.”

While the study gave its thumbs down to sandwiches containing pork, cheese and prawns, since these have the highest carbon footprints, it also took into account processing, transporting, packaging and refrigerating ingredients.
And so, our current fast-food sandwiches didn’t even come close to making the cut. For the environment conscious, this could spell bad news.