Comment by alexmccain6
2 days ago
One of the most striking aspects of air pollution is how invisible yet pervasive its effects are. Unlike more immediate environmental disasters, air pollution slowly chips away at public health, reducing life expectancy and quality of life, often without dramatic headlines. The comparison to starvation as a "frailty multiplier" is an interesting one; pollution doesn’t always kill directly but makes people more susceptible to fatal conditions.
Regarding the reduction in SO₂ emissions from shipping fuel, I’d love to see more discussion on how international regulatory pressure (e.g., IMO 2020) managed to enforce compliance in an industry notorious for cost-cutting. Was it simply a case of the alternatives being feasible enough, or did global coordination and monitoring play a stronger role than usual?
The other striking aspect for me is how, as has often been the case, those most affected are the poorest.
Levels of asthma in London are highest among kids in the vacinity of the docks where cruise and container ships and moor. They sit there running their engines for power, churning out SO2 and other pollutants. These areas are some of the poorest in London.
The same was the case in industrial cities during the industrial revolution. The poor factory workers lived close to the factories, and their kids grew up breathing the smoke. The wealthy owners moved to the outer suburbs (often upwind) where the air was clear.
There was a bit of an uproar a few years back about how many premiership football players were using asthma medication, a higher rate than the general population. The implication being that they were using them as performance enhacning drugs. But if you take into account that they disproportionately come from poor inner-city areas (not all, but many more), the proportion with asthma looks much more in line with the background rate.
Urban air pollution is insidious. Unlike the dreadful smogs of previous generations that lead to things like the Clean Air Act and the banning of open fires in urban areas, today's is invisible, and so doesn't create the same political problems. In fact if you try to do anything about inner city pollution you can pretty much guarentee an angry pushback.
> Levels of asthma in London are highest among kids in the vicinity of the docks
Someone else pointed out that there's very little shipping in central London now. It's all cars and buses causing this pollution.
> In fact if you try to do anything about inner city pollution you can pretty much guarantee an angry pushback.
See how bonkers people got over the ULEZ: https://www.bbc.co.uk/news/business-66268073
There are still cruise ships that dock, and they have been a big issue for local kids. They use a lot of power while docked. I believe the solution is to hook them up to the grid, but that requires that they and the dock both have the facilities.
There is a dock in the Greenwich area, and another one further down the Thames estuary.
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> Someone else pointed out that there's very little shipping in central London now. It's all cars and buses causing this pollution.
Or gas boilers, in the case of NOx pollution:
> Gas boilers now produce ~72% of NOx emissions in central London.
https://bsky.app/profile/janrosenow.bsky.social/post/3lltacf...
> There was a bit of an uproar a few years back about how many premiership football players were using asthma medication, a higher rate than the general population. The implication being that they were using them as performance enhacning drugs. But if you take into account that they disproportionately come from poor inner-city areas (not all, but many more), the proportion with asthma looks much more in line with the background rate.
That part can also be explained because asthma drug is used as masking agent when taking steroids and other PEDS, which is quite common at this level.
Lest anyone take this seriously, these assertions are confidently-misinformed, conspiracy-minded thinking.
No asthma medications whatsoever have utility as a chemical masking agent, nor are there any plausible mechanisms for that to happen.
Beta agonists (mostly clenbuterol) have been abused independently in the past as a way to cut weight in weightlifting/cycling/etc., since they theoretically provide a marginal boost to overall metabolism - but the effects are marginal. They're de facto useless as a general PED.
Widespread doping in high-level sports is absolutely commonplace, and it's very easy to not get caught - but asthma medications have absolutely nothing to do with that.
See WADA masking agent list here: https://www.wada-ama.org/en/prohibited-list
Well-informed paper about real evasion strategies available here: https://www.sciencedirect.com/science/article/abs/pii/S03037...
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> There was a bit of an uproar a few years back about how many premiership football players were using asthma medication, a higher rate than the general population. The implication being that they were using them as performance enhacning drugs. But if you take into account that they disproportionately come from poor inner-city areas (not all, but many more), the proportion with asthma looks much more in line with the background rate.
You can get asthma just from breathing really hard too much. Especially in cold climate. Due to this it is really common with endurance athletes.
For example https://barcainnovationhub.fcbarcelona.com/blog/asthma-in-el...
> Levels of asthma in London are highest among kids in the vacinity of the docks where cruise and container ships and moor.
Wait, what? There are no container docks in London. The nearest container port serving London is Tilbury, near the coast. Occasionally a single cruise ship moors in the Pool of London against the HMS Belfast, but that's happening only one this month, for 12 hours on April 7, according to the Tower Bridge lift schedule: https://www.towerbridge.org.uk/lift-times
Cruise ships certainly used to moore up in the Greenwich stretch of the river at the and a few years ago there was quite a lot of coverage of the issue around it. Cruise ships require a lot of power while docked, and unless they connect to the grid they used to create a lot of air quality issues.
If there are a lot less docking then that's great, but there do still seem to be a number that dock there https://blackheathandbeyond.wordpress.com/2024/03/27/fairly-...
I know there was a push to develop a big new cruise port in the Greenwich stretch which was strongly opposed by locals for that reason.
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> those most affected are the poorest
Please pardon my pedantry but this is by definition what poor is : having less means to escape material woes. Rich people are the ones that can elect to live in healthy areas.
In many cities a lot of rich people live in the city centre. London is an example. Take a look at house prices and rents in Westminster or the City, or even adjoining areas. The only poor people there are the ones in social housing who are a minority.
Yes, but if the air pollution we're talking about is invisible then why would the rich elect for less exposure? Some might look at air quality data, but I suspect what is really going on is they seek out quiet. Noise pollution is the thing people really hate and avoiding that will likely lead to getting better air quality too.
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I think part of the IMO2020 compliance is that fines have actually been applied for ships that have broken previous similar regulations.
https://www.theguardian.com/world/2018/nov/26/cruise-ship-ca...
It turns out that the previous 2015 regulations around the USA and Canada were also largely followed, even offshore - this is despite there being little monitoring capability away from ports (I worked on this study).
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/201...
I am not an economist, but I suspect part of the compliance is a case of 'as long as everyone is forced to do it', we are okay with it as everyone can/has to raise prices.
Also, the industry had a few years of lead time to prep, which probably helped avoid a full-blown logistical panic