
Moving food around uses energy. Usually oil, a non-renewable fossil fuel, is burned in lorries, planes and cars when food is transported. This puts carbon dioxide into the atmosphere. As oil will run out one day, its use should be limited.
However, over in the UK, for example, only 9% of the carbon dioxide emissions related to food is from transport. Look at the chart on the right to see the other food-related contributions to carbon dioxide emission.
Note that this pie chart has not included the carbon dioxide emissions involved in importing food to the UK!