§ Blog
#transport
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How much CO₂ does flying actually produce?
One long-haul return flight can outweigh a year of careful choices elsewhere. Here's what a flight really costs in CO₂ — including the contrail effect most calculators quietly ignore.
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How much CO₂ does driving a car produce?
An average petrol car emits two to three tonnes of CO₂ in a typical year. Here's the per-kilometre math, how electric really compares on a real grid, and what changes the number most.
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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.