First we calculate the distance between the two airports to give us the amount of kerosene the plane needs for the journey.
Next we add an extra 1.1 tons of kerosene to account for take off, landing and taxiing to and from the runway.
3.1kg of CO2 is created for every 1kg of fuel used. So we multiply the fuel mass above by 3.1 to estimate the CO2 emitted.
Finally we divide this amount by the average number of passengers for that type of flight to work out your personal contribution.
While flying less is the most obvious way to cut flight emissions, there are loads of great hacks for cutting flight emissions in creative ways!
We're here on the other end of the internet, happy to answer questions about calculating carbon footprints or our growing movement.