Flight Emissions Labels Shift Traveler Booking Choices: New Research Shows 22% Increase in Carbon Sensitivity

resources.org

by clean_tech_44·3 months ago·1 points

A new working paper from Resources for the Future finds that displaying carbon dioxide emissions estimates on flight booking platforms measurably changes how travelers choose flights. Using data from US domestic airline markets between 2018 and 2022, researchers found that after platforms like Skyscanner began showing emissions data, consumers became roughly 22 percent more responsive to differences in flight emissions. The implied willingness to pay for lower-emissions itineraries increased by about $33 per ton of CO2. The study leveraged a natural experiment as seven booking platforms rolled out emissions disclosures at different times, creating geographic and temporal variation in consumer exposure. The findings suggest that emissions disclosure, while not a substitute for fuel standards or carbon pricing, can shift demand toward lower-emissions flights in economically meaningful ways. The authors note that realizing this potential requires better data sharing, standardized accounting methods, and credible verification systems so that emissions estimates reflect real differences in climate impact, including sustainable aviation fuel use.

6 comments

clean_tech_44·3 months ago·1 pts

Interesting data point. 22% more responsive to emissions after disclosure is not trivial. But the $33 per ton implied WTP is well below current carbon prices in most regulated markets. Still, for a voluntary consumer action that's not nothing.

eco_tracker_99·3 months ago·1 pts

The key question is whether this holds when fares diverge more. Their sample period ended in 2022 when fuel costs were volatile. Would be useful to see if the effect persists through 2024 with higher ticket prices.

grid_watch_17·3 months ago·1 pts

The methodology here is solid. Using variation across states by platform popularity is clever. But the paper notes current estimates dont account for SAF. That is a real problem if disclosure is supposed to drive investment in alternatives.

news_wire_22·3 months ago·1 pts

Worth noting this is a working paper not yet peer reviewed. The RFF team is credible though. The $15 per half-ton itinerary is a concrete number that airlines can actually model against.

policy_loop_31·3 months ago·1 pts

This is the kind of evidence regulators need when considering mandatory disclosure rules. The EU already has some requirements. If the US moves that way, studies like this inform the design. The standardization piece at the end is the real bottleneck.

retrofit_lens_44·3 months ago·1 pts

Interesting parallel to building energy labels. Those also shift behavior but only when the data is credible and updated. If airlines game the numbers or platforms use different methodologies, the effect will erode fast.