Later On

A blog written for those whose interests more or less match mine.

Is the violence across North Africa and the Middle East caused by leaded gasoline?

leave a comment »

As Kevin Drum has noted in various posts and articles, there is strong and (to me) compelling evidence that children raised in a lead-polluted environment grow up to be violent adults, and the most pervasive form of lead pollution has been leaded gasoline. The US discontinued leaded gasoline around 1980 (there was a phase-in period when both leaded and unleaded gasoline were sold), and 20 years later, violent crime began a remarkable decline. This phenomenon—discontinuing leaded gasoline followed 20 years later by a significant decline in violent crime—has now been seen in any countries.

This chronology of leaded gasoline history (PDF) is quite interesting as it marks significant dates from the introduction of leaded gasoline in 1923. The PDF notes that Tetra-ethyl lead (TEL or “ethyl”) was the invention of Thomas Midgley, who was posthumously declared to be “responsible for more damage to Earth’s atmosphere than any other single organism that has ever lived.” (Walker 2007) Some of that is because Midgley was also responsible for the adoption of fluorocarbons as propellants for aerosol cans, and fluorocarbons turned out to be vastly destructive of the ozone layer, so those too were phased out.

In a post this morning (mainly on the new Trump aide Sebastian Gorka) has this interesting chart:

blog_middle_east_leaded_gasoline_phaseout_0

Drum’s post is worth reading for the information on Gorka.

Written by LeisureGuy

21 February 2017 at 10:32 am

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s