this post was submitted on 15 May 2025
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How much of this was dieselgate and DEF fluid?
DEF: Googling say DEF was implemented in 2015 in Europe. Other posters have clarified the map shows NO2, which DEF reduces by "up to 90%"
Dieselgate: Also 2015. "On 29 September 2015, Volkswagen announced plans to refit up to 11 million affected vehicles, fitted with Volkswagen's EA 189 diesel engines". Affected cars emitted 40x the legal NOx levels. It also accelerated EV offerings. Also increased testing and scrutiny.
Yeah I'm leaning more towards this being dieselgate and DEF.
Keep seeing this picture but no control group. Give me the same data for a French city other than Paris to understand whether this is about local policy change or about emissions standards and the move to electric cars.
Googling tells me DEF (diesel exhaust fluid) was required in 2015 in Europe. Other posters have said this graphic is NO2, which is what DEF reduces.
Woah, woah, keep it down lads. There's Americans around who can't handle this kind of information!
I’m an American who wants European style cities and public transport because it’s actually better for drivers, too.
Germany has zero speed limit on some highways because of this.
Coming back from some time in Europe it's imposible to unsee how good we could have it.
There's a perfect highway near me begging to have no speed limit. Straight, flat, no major cities.
But knowing how things would go someone would try to break the sound barrier in a vehicle that was not up for it and die. Then a ton of knee jerk legislation and regulation would make things worse for everyone.
There's no legend. This is a worthless image
The red parts are pollution.
Also no control group to determine whether this was due to bike lanes like the post title claims
Legend? This is an image of Paris transforming from an active volcano into a radioactive site.
All the bikes run on uranium.
I posted this somewhere in the comments already, but copy pasting it to be helpful:.
Op cut it out for some reason, but it is in the linked article. Here is a screenshot of the 'y-axis':
I dont trust anything that's about an EU city and has* miles as units
Gas miles as units?
Probably autocorrect from "has"
could have seen that, think i didn't because it the graph is about cars and pollution. I get op's anti-us sentiment, but funny thing is that a lot of data in newspapers with graphs in km is still (at least partially) based on data and research from us but well
Although it is good that they added riding bicycle lanes I doubt that is the only reason for the lowering of pollution.
Not only do we have electric and hybrid cars, due to euro standard combustion engines have become a lot cleaner during the same span of time. Plus public transport has also become a lot better during that time.
Yeah, car restriction is the key. Then you must plan for people who needs to move. Cars don't belong to the city, only for leisure trips outside.
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