About 4.7 billion fewer passengers are forecast to travel by year-end, representing a decline of 47.5% of global passenger traffic, equating to a loss in airports’ revenue of more than $94 billion, said the Airports Council International (ACI) World, the trade association of the world’s airports. The Advisory Bulletin published by ACI said that as prospects for a recovery in 2021 begin to emerge, different regions of the world will ...