Environmental Impact  Development is shifting from just GDP growth towards promoting a sustainable approach to growth. The UN has created the Sustainable Development Goals for development post-2015, which emphasise developmental policy and practice today has to meet the needs of the present without jeopardising future populations. Therefore how can a new Open Skies agreement be justified on environmental or sustainability grounds? Encouraging more air traffic will act to increase the human burden on the environment. Key concerns are noise and atmospheric pollution, deforestation, and the use of space. Flights produce around 628,000,000 tonnes of CO2 annually adding to climate change (Clean Sky, 2014). With numbers rising the pressures will too.