Climate Depot: Do you take a packed lunch to work or buy a sandwich from the shop? The carbon footprint of your sandwich could be having a major impact on greenhouse gas emissions according to new research.
Researchers at The University of Manchester have carried out the first ever study looking at the carbon footprint of sandwiches, both home-made and pre-packaged. They considered the whole life cycle of sandwiches, including the production of ingredients, sandwiches and their packaging, as well as food waste discarded at home and elsewhere in the supply chain.
Altogether the team looked at 40 different sandwich types, recipes and combinations. They found the highest carbon footprints for the sandwiches with pork meat (bacon, ham or sausages) and those containing cheese or prawns. read more