The purpose of the looking at the future...is to disturb the present!

Gaston Berger (1896-1960), francuski futurolog

Fans Flocked to World Cup Host Cities—Causing 80 Percent of the Tournament’s Emissions

The latest estimates reveal that the majority of greenhouse gas emissions from large-scale events such as the FIFA World Cup stem from spectators traveling to host cities.
Link :
https://www.wired.com/story/new-research-estimates-most-emissions-came-from-fan-travel/