One race weekend. 24% of F1's entire annual reported footprint.
F1 reports its total annual carbon footprint as 168,720 tCO₂e. The fan travel emissions from a single Silverstone weekend represent nearly a quarter of that figure — and F1 doesn't include fan travel in its reporting.
Silverstone's cumulative attendance reached half a million, with an estimated 280,000 unique attendees. Race Sunday drew the largest single-day crowd.
The overwhelming majority of fans drove to Silverstone. But the small share who flew — mostly international attendees — dominated the carbon footprint.
Where you travel from — and how — defines your individual carbon footprint for the weekend.
Race attendance has grown from 4 million to 6.5 million fans since 2018. Yet fan travel — the single largest source of emissions at any Grand Prix — sits entirely outside F1's reported carbon footprint. This is the blind spot in motorsport sustainability.