Passenger trains emit less carbon dioxide per passenger-kilometre than cars or planes.

Is it true that passenger trains emit less carbon dioxide per passenger-kilometre than cars or planes?

Unclear. The placed sources only partially cover the claim: one study finds rail travel generally emits less CO2 per passenger than air travel in the northeastern U.S., and a data overview says trains are nearly always the lowest-carbon option over moderate-to-long distances, but neither gives a full train-versus-car-versus-plane per-passenger-kilometre comparison.

Verdict: PARTIAL LEAN · 4 sources for, 0 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Quaschning, V. V. (2009). Renewable Energy and Climate Change. play.google.com. https://play.google.com/store/books/details?id=JL1BCL7GyBUC&source=gbs_api

Savings in per-passenger CO2 emissions using rail rather than air travel in the northeastern U.S - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1080/10962247.2020.1837996

Which form of transport has the smallest carbon footprint? | Our World in Data. (n.d.). ourworldindata.org. https://ourworldindata.org/travel-carbon-footprint

Chaudhary, A. (2022). A New Device for Reducing Air Pollution Using Principles of Electrostatics and Aerodynamics. zenodo.org. https://doi.org/10.5281/zenodo.7121835