The International Coalition for Sustainable Aviation (ICSA) was established in 1998 by a group of national and international environmental Non-Governmental Organizations (NGOs) as official observers at the United Nations International Civil Aviation Organization (ICAO). While many countries have introduced policies and regulations to address aircraft CO2 emissions and noise over the years, the overall environmental impact of aviation is significant, and its climate impact will continue to grow rapidly unless immediate action is taken. Some countries have led with measures such as taxation or market instruments. However, aviation is an international sector and benefits from a coordinated response that effectively tackles the sector’s international emissions. ICSA works with the United Nations International Civil Aviation Organization (ICAO) to promote such a response.
Since its inception, ICSA has contributed to ICAO’s CAEP work on technical means to reduce emissions and noise, to ICAO’s work on the role of market-based measures to reduce emissions, to economic and environmental analysis in the sector, to modeling and forecasting, and to the development of ICAO’s carbon calculator.