With increasing global temperatures and the impact of climate change, it is accepted that there needs to be a reduction in global GHGEs which are contributing to climate change. As part of the UK Climate Change Act 2008 () targets were set to cut the total annual GHGEs in the UK by at least 80% by 2050, with an interim target of a reduction of 34% by 2020 (based on the 1990 levels). The food system is a major contributor to GHGEs, with the food chain estimated to account for approximately a fifth of total GHGEs in the UK, the.