Quote:
Originally Posted by milomilo
In a world where we didn't care about carbon emissions, it would be mostly pointless. But unless we embrace direct air capture of CO2 or run planes off biofuel, I wonder how we will replace air travel with something as good.
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Trains only offer a reduction in CO2 emissions if they are transporting a large number of people. For a smaller number of people, trains are more polluting than single occupant vehicles.