The Iberian Transport Sustainability Score: A Data-Driven Method to Compare Cost, Carbon and Time Across Portugal and Spain
Choosing between a train, bus, or flight for your journey across Spain and Portugal is more complex than checking a timetable. You’re weighing a stack of competing priorities: your budget, your schedule, and the silent cost of your carbon footprint. Standard booking sites present these factors in isolation, a price here, a duration there, leaving…
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