UN: Tourism crash to cost trillions The crash in tourism due to pandemic-related restrictions could cause a loss of more than $4 trillion to the global gross domestic product in 2020 and 2021, according to a … Tourists jump off a catamaran moored in Cane Garden Bay (File photo: JASON SMITH The crash in tourism due to pandemic-related restrictions could cause a loss of more than $4 trillion to the global gross domestic product in 2020 and 2021, according to a United Nations Commission on Trade and Development report published late last month. Vaccine uptake will be key to how fast economies recover, the UN agency found. The report was released as the organisation prepared for its