Delhi airport records the lowest carbon dioxide (CO2) emission among airports handling over 60 million passengers per year across the world, a study has found.
The study by ‘Airport Tracker’, a new online tool by non-profit organisations International Council on Clean Transportation, Overseas Development Institute, and Transport & Environment, showed that Delhi airport releases 5.53 million tonnes of CO2 annually, which is nearly half of the emissions at Singapore’s Changi airport, South Korea’s Incheon Airport, and the Frankfurt and Hong Kong airports, each of which produce over 10 million tonnes of CO2 per annum.