The major proponent was also known as

Thomas Midgley Jr.: Accidentally The Most Dangerous Man Who Ever Lived[0]

Leaded gas, CFCs, and accidentally created a machine that ended his own existence.[1]

[0]https://allthatsinteresting.com/thomas-midgley-jr [1]https://en.wikipedia.org/wiki/Thomas_Midgley_Jr.

> countries where leaded gasoline was—or still is—used

Note: it’s now banned for road vehicles everywhere [1].

[1] https://ourworldindata.org/data-insights/every-country-has-n... Algeria, 2021

There are two major sub-fields in materials science. 1: Making materials with interesting new properties. 2: figuring out how to remove the lead from them.

People like to point and laugh at the Romans at their use of lead in plumbing and wine. But they were never even close to being as stupid and callous as we managed to be the last 150 years. They are going to be shaking their head at us for thousands of year hopefully.

Will anyone be held accountable though?

Lucas Reilly's Mental Floss article on Clair Patterson https://www.mentalfloss.com/science/environment/clair-patter... is a much better piece. I'll also recycle https://news.ycombinator.com/user?id=heymijo 's old comment https://news.ycombinator.com/item?id=28502232 on this article from its 2021 HN discussion https://news.ycombinator.com/item?id=28500508 (again, what follows is his or her work not mine!):

> Two beliefs became entrenched:

1. that lead is natural to the human body, and

2. that a poisoning threshold for lead existed

Robert Kehoe, working for GM, was the chief advocate for leaded gasoline, and really the only person/lab doing research on lead until Clair Patterson stumbled into it while measuring the age of the earth. [0,1]

A modern equivalent might be if Facebook was the only organization researching social media's impact on society, while being able to set the paradigm/assumptions about said safety for half a century.

So even when Patterson's research was published in 1965, it took time to change the paradigm, and more time to phase out lead's use.

Should anyone want to read a narrative about the intertwined lives of Midgley, Patterson, Kehoe and lead, then this Mental Floss article is a good read. [2]

[0] https://en.wikipedia.org/wiki/Robert_A._Kehoe

[1] https://en.wikipedia.org/wiki/Clair_Patterson#Campaign_again...

[2] https://www.mentalfloss.com/science/environment/clair-patter...

A good Veritasium video on the subject:

https://youtu.be/IV3dnLzthDA?is=MorITIg_MvFrKtvR

For an animated version of this story, see Cosmos, season 2 (I forget which episode, but it was helpful in teaching about this in high school)

We've known about climate change for more than a century, but we're pigs, we don't care.

25 years ago in the UK, leaded petrol was being phased out but still pretty common. The UK Government was giving people grants to have existing cars converted to run on LPG, so they'd only run on a coke can of petrol for a minute or so on startup then switch over to gas.

Catalytic converters? Don't need 'em! There's no CO or unburnt fuel in the exhaust to catalyse because they run as lean as a vegan's dog!

CO2 emissions? Sure, but the stuff is getting flared off as waste at refineries anyway, and we're not going to stop making plastics and fertilisers any time soon, so may as well extract useful work from burning it!

We could have had incredibly clean cities everywhere by now, by simply keeping older cars on the road and adapting them to run on much cleaner safer fuel.

But there was a problem, an absolute bombshell of a problem. The fatal flaw that killed LPG as a road fuel.

It didn't sell new cars. It didn't sell anyone any debt.

So they came up with "scrappage schemes" where you'd get a couple of hundred quid for your old car, it would get destroyed, and then all you had to do was buy a nice new Cleaner Greener Diesel car instead, at some swingeing rate of interest (expect to pay well over twice the sticker price by the end of it - and no, you didn't get the Scrappage Scheme cash if you didn't take the finance package).

And you see how well that worked out.

Yes and the toxic effects of asbestos had been known for thousands of years before popcorn ceilings became a fad

Same with cigarettes and asbestos. Everyone knew smokers had shorter lives, but the facts were suppressed because it was inconvenient. Everyone knew asbestos was dangerous, but they put it in every single house for decades because "fire was worse".

And don't even get me started on DDT and teflon.

and still sprayed all around the surrounding land at almost every airport in the USA and worldwide from prop aircraft exhaust despite knowing ANY amount is toxic and irreversible for 30+ years

* https://www.nbcnews.com/business/business-news/leaded-gas-wa...

Some previous discussion:

2021 https://news.ycombinator.com/item?id=28500508

Why is this surfacing up?

i'm fairly certain the reason trump was elected is the long tail of leaded gasoline; the timing fits pretty well.

The guy that invented spent years bed-ridden because of it... yet he still went to trade shows to show it off

  Ah. We can't patent XYZ let's use ABC. 

The Man Who Accidentally Killed The Most People In History

https://www.youtube.com/watch?v=IV3dnLzthDA

> This, my dear friend, is all I can at present recollect on the Subject. You will see by it, that the Opinion of this mischievous Effect from Lead, is at least above Sixty Years old; and you will observe with Concern how long a useful Truth may be known, and exist, before it is generally receiv'd and practis'd on.

> Benjamin Franklin, 1786