12 Carbon-Free Journeys That Will Define the Future of Sustainable Tourism

3. Rail and Night-Train Revival

Rail has re-emerged as a compelling carbon-lite choice for trips under approximately 1,000 kilometers and for overnight travel between major cities. Night trains combine travel and a night’s accommodation, cutting both flight demand and hotel use while offering a relaxed, low-stress experience. Rail-first routing reduces per-trip emissions, benefits from extensive electrified networks in many countries, and often connects city centers directly — saving last-mile carbon and time. For North American travelers, expanding international night train options and improved intercity rail services make more itineraries practical without flying. Seasonality and ticketing complexities can be a trade-off; advanced planning typically secures better schedules and sleeper accommodations. When booking, prioritize direct overnight services and choose routes with electric traction. Rail operators increasingly publish comparative emissions data, so look for platforms that display rail’s carbon advantage versus flights when comparing route options.