Last updated: 26.03.2024

<aside> 💡 High-Level Description:

The UK's Department for Environment, Food and Rural Affairs (DEFRA) plays a pivotal role in shaping the nation's environmental policies and strategies. Recognizing the escalating environmental concerns associated with the aviation industry, DEFRA has introduced carbon calculation methodologies specific to the flight passenger sector. This approach aims to standardize and provide a credible basis for evaluating the carbon emissions associated with flying.

DEFRA's methodology for evaluating carbon emissions from passenger flights incorporates a range of factors. These include the aircraft's fuel consumption, flight distance, type of aircraft, and even the indirect effects of high-altitude emissions. The aim is to offer a holistic view of a flight's environmental impact. By developing this standardized approach, DEFRA not only aids the aviation industry in understanding and reducing their carbon footprint but also provides a reliable reference point for policymakers and environmental advocacy groups.

</aside>

Equation

co2_in_g = distance_in_km * co2_in_g_per_passenger-km * number_of_passengers

Factors considered by methodology:

• Distance
• Number of travelers
• Booking class
• Aircraft type
• RFI

SQUAKE additions:

• Fare class & airline to retrieve booking class

API request

{
  "expand": [
    "items"
  ],
  "items": [
    {
      "type": "flight",
      "methodology": "DEFRA",
      "external_reference": "string",
      "origin": "BER",
      "destination": "MUC",
      "number_of_travelers": 2,
      "booking_class": "economy",
      "aircraft_type": "737",
      "radiative_forcing_index": true
    }
  ]
}

• Default values
• Calculation specifics

Read more about RFI: Radiative Forcing Index

Bibliography