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Swedish Researchers Launch Tool to Encourage Consumers to Fly Less

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GOTHENBURG, SWEDEN—As the climate issue heats up, consumers are becoming more conscious of their impact on the environment. “Flygskam”, or “flight shame” is a word that has received extensive media coverage recently, reflecting the increasing awareness of flying’s environmental consequences. Now, researchers from Sweden’s Chalmers University of Technology present a tool that allows consumers to evaluate the outcome of their different travel options.

The new websiteTravel & Climate—gives an instant and simple calculation of the emissions from different modes of travel for a given journey.

For example, for two people traveling from London to Barcelona, the tool gives a calculation of 130kg of carbon dioxide equivalent emitted for a train or bus journey, 244kg by private car, and 371kg by plane. It also includes information on accommodation to calculate an overall cost.

A Swedish version of the tool has already existed for around a year, receiving coverage in most of the major Swedish media outlets, and has had over 50,000 unique visitors since it began. Alongside the launch of the English version, the Swedish version, klimatsmartsemester.se, has been revamped with more information and a new design.

The website is based on research by Jörgen Larsson and his group from Chalmers University of Technology, looking at the impact of Swedish flying habits on the climate.

“Our studies have shown that Swedish flying results in emissions of about a ton of carbon dioxide equivalents per citizen. This is around five times higher than the global average, and roughly the same as Sweden’s total emissions from car usage,” says Jörgen Larsson.

Number of Flights Taken Increased Dramatically

Their analysis of historical data from 1990 to 2017 has also shown the dramatic increase in flying overall. International flights from Sweden have doubled, from 0.5 trips per person in 1990 to 1.0 trips per person in 2017. The average distance of these trips is about 2700 km one-way—roughly the distance from Stockholm to Madrid.

Continued rising emissions from aviation threaten the target of the Paris Agreement, of keeping global warming well below two degrees. Jörgen Larsson hopes the new tool will help to further spread knowledge of flying’s damaging effects and contribute to fewer flights.

“Reaching the two-degree target will require changes in our lifestyle. Maybe if everyone adopted a vegan diet instead, flight emissions would not have to decrease so much,” he explains. “But that would also be a large intervention in our lifestyle.”

Much is made of the technical developments of aircraft and engines, with better aerodynamics and more efficient operations. It is true that these have had an effect, and emissions per passenger kilometer have fallen by roughly 2 percent each year in the period. “The problem is that air travel has simultaneously risen by over 3 percent,” says Jörgen Larsson. Emissions in total have therefore increased.

In part thanks to Jörgen Larsson’s research, consumer awareness in Sweden of the damage caused by flying is increasing, with “flygskam”, or “flight shame” being recently highlighted in international media as a new Swedish contribution to the English language. There is also a growing movement for train travel. The facebook group “Tågsemester” (train holiday) has over 80,000 members, and the Swedish national train company SJ is currently reporting record passenger numbers.

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