Keywords: carbon footprint, airports, airport emissions, climate change, Turkey, CO2, carbon dioxide, carbon emissions, case study, air pollution, greenhouse gases, GHG emissions
Basic principles of CO2 emission calculations at airports: a case study from Turkey
Carbon footprint of airports is managed by Airport Council International (ACI) with the Airport Carbon Accreditation (ACA) programme. It is a 'European Carbon Standard' for airports. The programme assesses and recognises the efforts of airports to manage and reduce their carbon emissions with four levels of certification: 'mapping', 'reduction', 'optimisation' and 'neutrality'. Airports must have independently verified their carbon footprint reports in accordance with 'ISO 14064' (Greenhouse Gas Accounting). The definitions of emissions footprints used by ACA follow the principles of the World Business Council for Sustainable Development (WBCSD) and the World Resources Institute (WRI) 'Greenhouse Gas Protocol' Corporate Accounting and Reporting Standard. The carbon footprint calculations have been made by the Greenhouse Gas Protocol (GHG Protocol) worksheets which define emissions as direct and indirect. In this study, the basic principles of the carbon footprint calculation for an airport have been summarised and an example has been given from an airport in Turkey.