Thomas Midgley, Jr. scientist

Science’s fallen hero

Meet Thomas Midgley, Jr., who solved science problems by making bigger ones.

Scientists take a drubbing in popular culture.


They're depicted as oddballs, like the dweebs in the Big Bang Theory, a ratings topper from 2007 to 2019 and now ubiquitous in lucrative, syndicated reruns. In the 1960's, Gilligan's Island featured "The Professor," an egghead with no social skills. And lest we think this is a relatively recent stereotype, Mary Shelley introduced the world to the mad, obsessive Victor Frankenstein in 1818.

Enter Thomas Midgley, Jr., engineer and chemist who reached the scientist's equivalent of rockstar status nearly 100 years ago. Midgley, whose father and grandfather were both patent-holding inventors, was born in western Pennsylvania in 1889. After a boyhood in Columbus, Ohio, he took off for the Ivy League, emerging from Cornell with a Ph.D. in mechanical engineering in 1911.

Described as affable, Midgley is said by historians to have been in constant possession of a copy of the Periodic Table of Elements. By 1916, he was working in a General Motors lab assigned to develop a gasoline additive that would control "knocking" -- the pinging, rattling noises that can afflict an accelerating gasoline engine. By the early 1920's, Midgley's team had settled on tetraethyl lead (TEL) as the solution. The American Chemical Society (ACS) recognized Midgley with its annual Nichols Medal in 1923. He took the next month off with symptoms of lead poisoning. By contrast, GM stayed safe, marketing tetraethyl lead gasoline as "ethyl."

While evidence built on lead's impact on the human nervous system, especially for children whose brains were still developing, leaded gasoline was used for the next 50 years.

Harmful invention #2: Freon

But soon, Midgley had a different passion. GM's new appliance division Frigidaire, needed to find a safe, non-toxic refrigerant chemical to replace the toxic mash already in use. Combining fluorine and carbon, he hit paydirt: Dichlorodifluoromethane, better known by its marketing name, freon. Midgley was credited with developing an entirely new chemical family, chlorofluorocarbons (CFC's).

Midgley won the Priestley Medal -- the highest in ACS — in 1941. That same year, he became the organization's president.

By 1985, the ozone half of Midgley's star status began to fade. Scientists had detected "holes" in the Earth's stratospheric ozone layers at both poles, with Antarctica's situation particularly dire. At ground level, ozone is a pollutant — a primary component of "smog." But in the upper atmosphere ozone is a protectant—blocking skin cancer-causing solar radiation. Researchers tracked much of the problem to chlorofluorocarbons — notably Midgley's freon.

One final, fatal invention 

EArth ozone layer

Time-lapse photo from Sept. 9, 2019—scientists release these balloon-borne sensors to measure the thickness of the protective ozone layer high up in the atmosphere. (Credits: Robert Schwarz/University of Minnesota)

The world's nations responded with unusual urgency. By 1988, the Montreal Protocol on Substances that Deplete the Ozone Layer took effect, outlawing the manufacture of CFC's. More than 180 nations signed on, with enthusiastic support from such notorious non-treehuggers as Ronald Reagan and UK Prime Minister Margaret Thatcher.

Today, scientists tell us that damage to the ozone layer has begun to reverse, with projections that the ozone layer will be whole by the start of the next century.

Similarly, use of tetraethyl lead in gasoline is sharply down, but not completely out. A few nations including Algeria, Iraq, Myanmar and North Korea may still allow its limited use. The U.S. still allows leaded fuel for small aircraft, farm and lawn equipment. Neurologists credit the near-absence of TEL with health and intelligence improvements in children.

Wouldn't it be nice if blunders like Midgley's could be as easily reversed with climate change or COVID?

In the cruelest of ironies, Midgley's final invention directly caused his demise. In 1940, he contracted polio, leaving him a paraplegic but not dampening his zeal for invention. He devised a rope-and-pulley system to haul himself into a wheelchair and back into bed.

On November 2, 1944, Thomas Midgley, Jr. died in his Ohio home, inadvertently strangled by his own invention.

Peter Dykstra is our weekend editor and columnist. What are your favorite (or least favorite!) environmental songs? Send them in to Peter at pdykstra@ehn.org or @pdykstra.

His views do not necessarily represent those of Environmental Health News, The Daily Climate, or publisher, Environmental Health Sciences.

Living near oil and gas operations linked to worse mental health in people hoping to become pregnant

“If we’re concerned about healthy pregnancies, focusing on the period before pregnancy may be even more important.”

Living near oil and gas operations, including fracking wells, is linked to stress and depression in people who are planning pregnancies, according to a new study.

Keep reading...Show less
Senator Whitehouse & climate change

Senator Whitehouse puts climate change on budget committee’s agenda

For more than a decade, Senator Sheldon Whitehouse gave daily warnings about the mounting threat of climate change. Now he has a powerful new perch.
Amid LNG’s Gulf Coast expansion, community hopes to stand in its way
Coast Guard inspects Cameron LNG Facility in preparation for first LNG export in 2019. (Credit: Coast Guard News)

Amid LNG’s Gulf Coast expansion, community hopes to stand in its way

This 2-part series was co-produced by Environmental Health News and the journalism non-profit Economic Hardship Reporting Project. See part 1 here.Este ensayo también está disponible en español
Keep reading...Show less

Monday breaks record for hottest day ever recorded

Monday set a new global temperature record, surpassing the previous day’s high, as extreme heat continues to affect countries worldwide, according to European climate data.

Sibi Arasu and Seth Borenstein report for The Associated Press.

Keep reading...Show less

Landslides in Ethiopia claim 229 lives

A double landslide in southwestern Ethiopia killed 229 people on Monday, burying rescuers who rushed to help those initially trapped.

Lynsey Chutel and Kumerra Gemechu report for The New York Times.

Keep reading...Show less

Paris aims to host the most sustainable Olympics in 2024

The Paris 2024 Olympics commit to halving the carbon footprint of previous Games through various green initiatives.

Ciaran Varley and Dave Lockwood report for the BBC.

Keep reading...Show less
Oil Tanker sinks in Manila Bay
Credit: Alex Traveler/Flickr

Tanker sinks in Manila Bay, sparking fears of major oil spill

A Philippine oil tanker sank in Manila Bay, potentially causing a major spill, after being battered by waves, prompting the coast guard to rescue 16 of 17 crew members.

Jim Gomez reports for the Associated Press.

Keep reading...Show less
California regulators fail to enforce new oil well cleanup law
Credit: Joe/Pixabay

California regulators fail to enforce new oil well cleanup law

California regulators decided they lack the authority to enforce the state's new oil well cleanup law on California's largest oil company merger, potentially costing taxpayers billions.

Mark Olalde reports for ProPublica.

Keep reading...Show less
From our Newsroom
climate change flooding

Op-ed: The climate crisis demands a move away from car dependency

Power shutoffs or wildfire evacuations can be deadly for disabled people, especially nondrivers who may not have a way to get to a cooling center or evacuation point.

joe biden

Biden administration unveils plan to wean US government off single-use plastics

“Because of its purchasing power … the Federal Government has the potential to significantly impact the supply of these products.”

chemical recycling

Chemical recycling has an economic and environmental injustice problem: Report

“It wouldn’t even make a dent in the amount of plastic pollution out there.”

carbon capture

30 environmental advocacy groups ask PA governor to veto carbon capture bill

“Putting resources toward carbon capture and storage instead of renewable energy is wasting time we don’t have.”

climate justice

Op-ed: Farmers of color need climate action now. The farm bill is our best hope.

Farmers of color who are leading the charge for regenerative farming, as they have done for generations, need our support now more than ever.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.