# \#tetraethyl-lead

**URL:** https://scanalyst.fourmilab.ch/tag/tetraethyl-lead/1800.md

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## [The Strange Story of Leaded Aviation Gasoline](https://scanalyst.fourmilab.ch/t/the-strange-story-of-leaded-aviation-gasoline/1868)

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**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 4\
**Last updated:** [19 August 2022 14:49 UTC](https://scanalyst.fourmilab.ch/t/the-strange-story-of-leaded-aviation-gasoline/1868 "2022-08-19T14:49:06Z")

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While leaded gasoline began to be phased out as a motor fuel in the 1970s and has been banned by most developed countries for twenty years or more, most piston powered general aviation craft c…

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## [The Man Who Changed the Earth’s Atmosphere—for the Worse](https://scanalyst.fourmilab.ch/t/the-man-who-changed-the-earth-s-atmosphere-for-the-worse/1275)

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**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 3\
**Last updated:** [28 April 2022 18:15 UTC](https://scanalyst.fourmilab.ch/t/the-man-who-changed-the-earth-s-atmosphere-for-the-worse/1275 "2022-04-28T18:15:35Z")

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Thomas Midgley, Jr. invented two chemical technologies: leaded gasoline and chlorofluorocarbon refrigerants, both of which had unexpected averse consequences on the Earth’s atmosphere and are now banned almo…