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I think the less favorable (and more accurate) metric would be carbon elisions amortized over productive lifetime: a trainset can last for half a century, while
by woodruffw 4y ago
I think the less favorable (and more accurate) metric would be carbon elisions amortized over productive lifetime: a trainset can last for half a century, while an ordinary consumer in the developed world might go through 4-5 new cars in that period. Making new cars (even and especially EVs) is carbon intensive and should probably be factored in.
- wilg 4y agoIt's already normalized to emissions per passenger-km, so I don't think the lifetime of the vehicle would skew it much unless it's efficiency changes over it's lifespan. Additionally, someone buying 4 or 5 new electric vehicles is not a problem. Unless they put the old car in a landfill, that will still replace 4 or 5 gas cars on the road as they are resold down the line. The carbon costs of producing them are already factored in!