Greenhouse gas emissions of imported and locally produced fruit and vegetable commodities: A quantitative assessment
2015
Michalský, Marián | Hooda, Peter S.
Today considerable efforts are being made in identifying means of further energy efficiencies within the UK food system. Current air importation of fruit and vegetables (FVs) generates large amounts of greenhouse gas (GHG) emissions part of which could be avoided. Local food production has been recognized as an environmentally feasible alternative production option and could help reduce GHG emissions, as required under the legally binding emissions targets stipulated by the UK Climate Change Act 2008.Climate change impacts of FVs importation were determined for a selection of five indigenous FV commodities, namely: apples, cherries, strawberries, garlic and peas. Carbon dioxide equivalents (CO2e) emissions associated with the production and transport stages were calculated using the sample of selected fruit and vegetables (SFVs). The latter stage includes three diverse geographic locations/regions for emissions comparison, namely the UK, Europe and non-European (NE) countries. On average (across the five SFVs), NE commodities, all in fresh/chilled state, were found to contain embedded (arising from production, air freighting and distribution within the UK) GHG emissions of 10.16kg CO2e/kg. This is 9.66kg more CO2e emissions compared to a kilogram of these commodities produced and supplied locally.A scenario-based approach determined the level of emissions savings that could be achieved by local FVs production in the UK. The least dramatic change of SCENARIO-1 (25% reduction in NE SFVs imports by increasing their local production by the same amount) could save 28.9kt CO2e/year, while SCENARIO-2 (50% reduction in NE SFVs imports) and SCENARIO-3 (75% reduction in NE SFVs imports) could result in saving of 57.8kt and 86.7kt, respectively.
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