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While many states have introduced policies and regulations to address aircraft noise and regulations over the years, the need for a common approach for international aviation has led most states to support and adopt the work of the UN’s International Civil Aviation Organisation. ICAO has a long history of setting standards to limit aircraft noise and engine emissions, but its work on climate change was brought into sharp focus in 1997 when Article 2.2 of the Kyoto Protocol requested developed countries to pursue the limitation and reduction of greenhouse gas emissions from aircraft through ICAO.

ICSA was established in 1998 by a group of national and international environmental NGOs as official observers. Since its inception, ICSA has contributed to CAEP’s work on technical means to reduce emissions and noise, the role of market-based measures, supporting economic and environmental analysis, modelling and forecasting, and ICAO’s carbon calculator. It has also been invited to present its views at ICAO workshops on carbon markets and bio-fuels, and has presented to the high-level Group on Internation Aviation and Climate Change (GIACC).

ICSA uses the expertise within its NGO membership to formulate its co-ordinated positions. To gain the broadest level of understanding and input from environmental NGOs, ICSA communicates with, and invites comment from, other NGO networks and bodies working in related areas. ICSA’s participation in ICAO and CAEP meetings is currently provided by the Aviation Environment Federation (AEF), the International Council for Clean Transportation (ICCT) and Transport and Environment (T&E).