Private planes are a convenient and fast way of transportation, but they also contribute significantly to CO₂ and other greenhouse gas emissions. In the context of growing concerns about the climate crisis There is increasing interest in emissions from private aircraft. The latest study published in the scientific journal Communications: Earth & Environment reveals that there has been a significant increase in these emissions between 2019 and 2023 – by as much as 46 % In this article, we take a closer look at what causes high emissions from private jets, how they increase, what their environmental impact is, and whether there are options to reduce them.

Significant increase in emissions: What does the latest study show?

According to a 2023 study published in Communications: Earth & Environment CO₂ emissions from private aircraft increased between 2019 and 2023 from 10.7 million to 15.6 million tons The research, led by Stefan Gössling of Linnaeus University in Sweden, analyzed data from flight transponders of more than 26,000 private jets from the ADS-B Exchange flight tracking platform. The study considered more than 18 million flights , analyzing the average fuel consumption of 72 types of aircraft used for private air transport.

The increase in emissions over the past four years is largely due to the increased use of private flights for short distances that could easily be covered by car or train. The study also points out that these flights are often taken by super-rich individuals, whose carbon footprint is significantly above average. Nora Wissner from the Institute for Applied Ecology in Berlin said that private jet owners are mostly men over 55, often from the banking, finance or real estate sectors, and a large proportion of the flights are for recreational purposes.

Why are emissions from private jets so high?

There are several main reasons why private jet emissions are so high:

1. Inefficient use : Airplanes benefit from lower fuel consumption per passenger than larger aircraft. Flights often carry only a few people, consuming significant amounts of fuel, which leads to high emissions per person.
2. Short flights : Private aircraft are often used for relatively short journeys that could be handled by ground transport with a much lower carbon footprint. Short flights are energy-intensive and, especially for take-off, fuel consumption is high, contributing to high emissions per unit distance.
3. Flights for recreational purposes : Many private aircraft owners use them for leisure and recreational purposes. For example, during major sporting or cultural events such as the World Cup or music festivals, there is a significant increase in private flights, which increases overall emissions.
4. Increase in flights during major events : According to the study, private jets are used during major political, sporting or cultural events. For example, in December 2022, during the UN Climate Change Conference in Dubai, a significant increase in private flights was recorded.

More CO₂ emissions from private aircraft can vary depending on the type of aircraft, flight length and number of passengers. However, average values range as follows:

• Light private aircraft (e.g. Cessna Citation Mustang) consume about 180-200 liters of fuel per hour of flight and approximately 400-500 kg CO₂ per hour .
• Mid-sized private jets (e.g. Bombardier Challenger 350) consume 700-800 liters of fuel per hour, which is about 1800-2000 kg CO₂ per hour .
• Large private jets (e.g. Gulfstream G650) can consume up to 2000 liters of fuel per hour and produce 5000 kg CO₂ per hour .

For comparison, an average commercial Boeing 737 flight, which can carry around 180 passengers, will achieve approximately 90-100 kg of CO₂ per person per hour of flight In the case of private aircraft, emissions are significantly higher.

The significant contribution of private jets to the climate crisis

Wissner from the Institute for Applied Ecology noted that super-rich individuals who regularly use private jets have their own carbon footprint. According to her, private aviation should be subject to stricter regulation, as its environmental impact is disproportionately high compared to the number of people who use it. The study by Stefan Gössling and his team also pointed out that the CO₂ produced by private aircraft accounts for only a third of the global global warming of electric flying. Other factors are condensation trails and emissions of nitrogen oxides and water vapor, which have a significant climate effect, especially in the upper atmosphere.

Options for reducing private aircraft emissions

Private aviation is one of the more energy-intensive forms of aviation. However, it can prevent some reduction in emissions:

1. Sustainable Aviation Fuels (SAF) : The development of sustainable aviation fuels is a promising step towards reducing emissions. SAF fuels can reduce CO₂ emissions by up to 70-80 % compared to conventional fossil fuels. However, they are currently expensive and their availability is limited, which limits their wider use.
2. Flight path optimization : Using optimized flight paths reduces fuel consumption because it allows aircraft to provide the shortest distance possible, thereby minimizing emissions.
3. Reducing the number of short flights : Promoting alternative modes of transport for shorter distances, such as trains and cars, can reduce the number of unnecessary private flights. Short-distance journeys are the most environmentally damaging, and rail or electric cars can be a suitable alternative.
4. Legislative measures and regulations : As Wissner suggested, stricter regulation of private aviation could reduce its carbon footprint. It could include higher taxes on private jet flights or even limiting the number of flights allowed for recreational purposes.
5. Technological innovation and investment in necessary aircraft : Developing larger, more fuel-efficient aircraft can help reduce emissions per flight. Investment in electric or hybrid aircraft technologies is still in the early stages of development, but represents a potential solution for the future.

Conclusion: Time to act

The increase in CO₂ emissions from private aircraft, which reached 46 % in 2019-2023, highlights the need for fundamental changes in the field of private aviation. This segment of transport remains the most energy-intensive, contributing disproportionately to the climate crisis. Private aircraft are often used for short-haul and recreational purposes, with their owners using alternative and more environmentally friendly forms of transport.

If the world is to move towards a more sustainable future, it will need to introduce stricter regulations and new innovations to help eliminate the environmental footprint of private aviation. Solutions such as sustainable fuels, flight optimization, regulatory constraints and the development of new technologies can contribute to the change it urgently requires. Spring