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I don't understand getting worked up about modes of transport, so allow me to just correct you on a few things: > Yet there are more cars than ever: Most of t
by Tade0 4y ago
I don't understand getting worked up about modes of transport, so allow me to just correct you on a few things:
> Yet there are more cars than ever:
Most of that growth is in China, where the car ownership rate is less than half of what it is in Europe, not to mention the US. Tends to happen when a country crosses a certain GDP-per-capita threshold.
> Even if you were right you'd make my point, we use them less but have more of them, since ~50% of a car's environment impact is done before it even leaves the factory, you end up with a net negative
It's actually closer to 15%. Here's a more detailed look:
https://www.greenncap.com/press-releases/lca-how-sustainable-is-your-car/ https://www.greenncap.com/press-releases/lca-how-sustainable...
> also: https://www.theguardian.com/environment/2022/jun/03/car-tyre https://www.theguardian.com/environment/2022/jun/03/car-tyre...
I see this mentioned here and there, but so far air pollution measurements don't follow. Even the most congested of cities rarely exceed particulate emissions limits provided other sources are taken care of.
This quote is significant:
“Tyres are rapidly eclipsing the tailpipe as a major source of emissions from vehicles,” said Nick Molden, at Emissions Analytics, the leading independent emissions testing company that did the research. “Tailpipes are now so clean for pollutants that, if you were starting out afresh, you wouldn’t even bother regulating them.”
So the real story is not that car tyres are so dirty, but that tailpipes are so clean.