
"Tourism carbon footprints were calculated using both residence-based accounting (RBA) to attribute emissions to the countries of visitor origin and destination-based accounting (DBA) for countries where tourism expenditures takes place."
Grey = domestic travel footprint
Green = inbound tourism footprint
Blue = outbound tourism footprint
Notice anything?
Paper: Drivers of global tourism carbon emissions https://www.nature.com/articles/s41467-024-54582-7