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#comparison
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Electric vs petrol car: at what mileage does the EV actually win?
An electric car starts with a bigger carbon debt from its battery, then pays it back in roughly one to two years of driving. Here's the sourced break-even math — and how the grid changes it.
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Flying vs train vs driving: emissions per passenger-kilometre
Per passenger-kilometre, the train is typically 5–10× lower than flying or driving alone. Here's the sourced comparison — and the occupancy and distance caveats that flip it.