Food miles refer to the distance food travels from field to plate. Longer food miles contribute significantly to carbon dioxide emissions that cause climate change. The document discusses how most fruit and vegetables in the UK are now imported, having doubled since the 1990s, and imports are predicted to continue rising. It identifies several causes for this increase in food imports and miles, including lower costs, consumer demand for out-of-season foods, some foods not being able to be grown in the UK, supermarket desires for higher profits, and improved transportation technology. Potential positive and negative impacts of increased food miles are also mentioned.