When one talks about aviation emissions typically Carbon Dioxide (CO2) is referred to. However, many scientific studies have shown that aircraft contribute more to global warming than only via CO2. Other fuel emissions such as nitrous oxides and water vapor are even considered to have a climate impact that is several times higher than CO2. When we calculate emissions we take both the CO2 as non-CO2 emissions into account:
1.For calculating the CO2 emissions of your flight we use (1) the point-to-point distance of the flight and (2) the estimated fuel burn for your aircraft category. We match the aircraft that you have booked with its fuel burn profile, taken from a data set from the International Civil Aviation Organisation (ICAO), and calculate the total fuel burned according to the length of your flight. Once the total fuel burn is known, is it multiplied by 3.16 which is the constant representing the number of tonnes of CO2 produced by burning a tonne of aviation fuel (According to ICAO’s Carbon Emissions Calculator Methodology and IATA’s facts). This gives the total carbon emission for your total flight.
2. For the non-CO2 emissions, although it is proven that overall they contribute considerably to global warming, there is today no consensus among scientists about the exact influence of each of them. Several methods to estimate the non-CO2 impact have been put forward. Flyetic is using the GWP (Global Warming Potential) index. In this method, the non-CO2 impact is calculated as a factor 2 of CO2. This means that in order to be emission neutral, an offsetting of (at least) 300% of the CO2 emissions is required.
Flyetic will calculate and show the total emissions for each flight that you request with us. Minimizing emissions and even bringing them to zero should be the long-term goal. In the short term, we want to make sure that all our emissions are compensated for. We will offset for each flight the calculated total emissions through our climate protection programs.