The Department for Enterprise says a half-hour show by the Red Arrows is the greenhouse gas equivalent of driving around 125,000 miles in a Ford Fiesta.
A Freedom of Information request to the department asked for details about the emissions from the RAF display team during TT.
In its response, the department said 2023 figures showed a half-hour show by eight planes produced 26,194 kilos of CO2 - but noted the TT show doesn't last half an hour.
A five-door Ford Fiesta produces around 130 grams of CO2 per kilometre.
Should dangerous drivers who kill face life in jail?
Police dealing with crash in Colby
Stop falsely accusing youngsters of vandalising skate park!
Plans to make northern school more accessible
Government fully committed to min wage rise
Airport director apologises for 'unusual circumstances' which returned flight
Garage staff get body cams to tackle abuse and theft
Manxman expected in Heysham around midday, says Steam Packet
