Aviation links hundreds of nations worldwide, and the aviation industry employs over 11.3 million people globally. It is one of the world's major people connections, facilitating massive commerce and tourism. It contributes to the success of the community and society by creating employment, economic development, and opportunities. However, carbon dioxide emissions from aircraft today account for around 2.5% of total world CO2 emissions. Organizations like the International Air Transport Association (IATA) have recognized for years that for the aviation industry to progress, it needs to decrease its contribution to global warming.