Danish air travel habits contradict sustainability efforts despite increased waste sorting

A significant number of Danes engage in waste sorting, with just over half having reduced their food waste and slightly more than one-third consuming less meat to lessen their environmental impact. However, there is a contradiction; 81% of Danes still opt for air travel despite available alternatives. This is highlighted in the ‘Nordic Consumer Sustainability Index 2024,’ revealing that while many are willing to make minor changes in their daily lives, they hesitate to forego carbon-heavy flights.

Kristian Steen Nielsen, an associate professor at Copenhagen Business School, suggests that individuals may perceive air travel as integral to their lives, associating it with cultural experiences and visiting loved ones abroad. This perception makes alternatives like long train journeys seem less appealing, often seen as more cumbersome, costly, and time-consuming.

Jakob Rachmanski, a behavioral advisor, notes that people tend to rationalize their air travel by downplaying its frequency or by making minor eco-friendly choices elsewhere, like reducing meat consumption. The environmental cost of flying is significant—an average return flight in Europe produces 0.2 tons of CO2 per passenger, while private jets release 3.2 tons.

The aviation sector is one of the most environmentally damaging transport modes, contributing nearly 4% of the EU’s greenhouse gas emissions in 2019. To meet the Paris Agreement’s goals, average annual CO2 emissions per person should be under three tons.

Experts suggest that increasing train service quality in Europe could make alternatives more attractive, and raising flight prices alongside enhancing public awareness about the actual pollution from flights could encourage more responsible travel choices.