this post was submitted on 27 Jul 2024
198 points (98.5% liked)

World News

39019 readers
2236 users here now

A community for discussing events around the World

Rules:

Similarly, if you see posts along these lines, do not engage. Report them, block them, and live a happier life than they do. We see too many slapfights that boil down to "Mom! He's bugging me!" and "I'm not touching you!" Going forward, slapfights will result in removed comments and temp bans to cool off.

We ask that the users report any comment or post that violate the rules, to use critical thinking when reading, posting or commenting. Users that post off-topic spam, advocate violence, have multiple comments or posts removed, weaponize reports or violate the code of conduct will be banned.

All posts and comments will be reviewed on a case-by-case basis. This means that some content that violates the rules may be allowed, while other content that does not violate the rules may be removed. The moderators retain the right to remove any content and ban users.


Lemmy World Partners

News !news@lemmy.world

Politics !politics@lemmy.world

World Politics !globalpolitics@lemmy.world


Recommendations

For Firefox users, there is media bias / propaganda / fact check plugin.

https://addons.mozilla.org/en-US/firefox/addon/media-bias-fact-check/

founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] oo1@lemmings.world 2 points 3 months ago* (last edited 3 months ago) (1 children)

They did present the data on the measured* levels and changes over the period, tables 43 and 44. And table 45 shows the observed trend and the counterfactual that they estimated in order to estimate the impact. (as womble pointed you can't measure an impact outside of a laboratory on something with complex influences, because you can't measure the counterfactual).

They don't want to attribute the whole meaasured improvement in air quality to ULEZ, as some of the change should attributed to other influences or pre-existing trends.

  • of course you just can't measure 100% of the air in a place accurately without asphyxiating the people in it, so they use data from an array of detectors sampling the air at regular intervals.
[–] sandbox@lemmy.world 2 points 3 months ago (1 children)

Hey, thank you so much for looking into it and checking it for me, I really appreciate that.

Clearly I was wrong here, I apologise for not checking the report closely enough, though I think they probably should have mentioned that they had measured and seen an impact. I totally understand why they don’t want to claim that impact is totally caused by their changes but from my cursory reading it didn’t seem like they had measured anything at all.

Going to edit or delete my previous comments to retract them.

[–] oo1@lemmings.world 1 points 3 months ago

yeah, studies like that need to do a lot of work - if they're any good - and look at a a lot of different angles.. The news articles usually do a terrible job of explaining such studies and the strengths and weaknesses - so it is hard to see the real evidence base or assess how much weight to put on it.

Unfortunately, in my opinion - the best way to know if such studies are any good is to ignore the news article completely , find the the full paper and spend a bit of time trawling through it.