Eunice Foote Predicted Climate Change 1856

In 1856, a woman in upstate New York filled glass cylinders with different gases, set them in the sun, and discovered something that would take scientists more than a century to fully appreciate: carbon dioxide traps heat. Eunice Newton Foote had just identified the mechanism behind climate change, three years before the work typically credited with the discovery. Her findings were presented at a scientific conference by a male colleague who downplayed their significance. The official summary didn't mention them at all.

This wasn't an isolated incident of oversight. It was the pattern that defined women's contributions to meteorology for the next century.

The Invisible Foundation

Foote's experiment was elegantly simple. She measured temperature changes in cylinders containing different atmospheric gases when exposed to sunlight. The carbon dioxide cylinder heated up more than the others and stayed hot longer. Her conclusion, published in 1856, was direct: an atmosphere with more CO2 would result in a warmer planet.

The paper appeared briefly in scientific journals, sometimes listed near her husband's name, once mistakenly under it. Then it vanished from scientific memory. When historians finally rediscovered her work in recent years, meteorologist Sara Tonks observed the obvious: "We could have known about the impacts of carbon dioxide on our atmosphere way sooner."

Foote was also a women's suffragist, conducting her experiments without university backing or institutional support. The dual exclusion—from both the vote and the laboratory—wasn't coincidental. The same systems that kept women from political participation kept them from scientific recognition.

Breaking Through Mid-Century

Nearly a century after Foote's discovery, Joanne Simpson faced a faculty advisor who told her plainly that no woman had ever earned a PhD in meteorology and none ever would. In 1949, she proved him wrong, becoming the first woman in the United States to do so.

Simpson didn't just collect a credential. She developed the first cloud model in meteorology and explained how hurricanes function as heat engines. Her work on tropical atmospheric circulation, including the Hadley circulation that drives global weather patterns, became foundational to modern meteorology.

But institutional barriers persisted in petty, practical ways. When Simpson needed cloud observations in the tropics, her institute refused to let her join field trips. Women weren't allowed. A naval officer finally intervened with an ultimatum: "No Joanne, no airplane." She got her field research.

Simpson eventually became chief scientist for meteorology at NASA, where she proposed what became the Tropical Rainfall Measuring Mission. The TRMM satellite carried the first space-based rain radar, transforming how scientists measure tropical rainfall and forecast hurricanes. The technology she championed remains central to weather prediction decades later.

The Accidental Meteorologist

June Bacon-Bercey's path into meteorology started with a mushroom cloud. As a teenager in Wichita, Kansas, she saw the Time magazine cover showing the atomic bomb's aftermath over Hiroshima. The image captivated her, drawing her toward atmospheric science during an era when that field was almost entirely closed to both women and Black Americans.

She earned a mathematics degree from Friends University of Wichita, then became the first Black woman to graduate with a meteorology degree from UCLA in 1954. Through the 1960s, she worked at the U.S. Weather Bureau—now the National Weather Service—contributing to nuclear testing research during the Cold War. She also earned a journalism degree from NYU, positioning herself at the intersection of science and public communication.

In 1972, opportunity arrived through an unlikely event: the chief meteorologist at WGRZ in Buffalo was arrested for attempting to rob a bank with a fake gun. Bacon-Bercey, who had been working as a science reporter at the station since 1971, stepped into the role. She became the first African American woman television meteorologist in the United States.

Four months later, she was promoted to chief meteorologist—another first. She also became the first woman and first African American to receive the American Meteorological Society's seal of approval, the profession's key credential for broadcast meteorologists.

Building Ladders

Bacon-Bercey left television in 1979 to work for NOAA as chief of weather and television services, but her most lasting contribution may have been institutional. She created a scholarship for women in meteorology and helped fund the meteorology program at Jackson State University in Mississippi, deliberately working to bring more African Americans into a field that had excluded them.

This wasn't charity. It was strategic infrastructure-building. Bacon-Bercey understood that individual achievement meant little if the systems remained unchanged. She died in January 2020 at age 90. A year later, the American Meteorological Society renamed its Award for Broadcast Meteorology the June Bacon-Bercey Award.

What Gets Remembered

The pattern across these three careers reveals something beyond individual discrimination. Foote's work was presented by a man and then forgotten. Simpson was told she couldn't exist as a PhD meteorologist even as she pursued the degree. Bacon-Bercey entered her field through a combination of exceptional preparation and a bank robbery.

None of these women succeeded because barriers fell. They succeeded despite barriers that remained firmly in place, often by finding narrow openings created by unusual circumstances or allies willing to issue ultimatums. Their contributions weren't recognized in real-time because the recognition systems themselves were designed to overlook them.

The rediscovery of Foote's work 160 years later isn't just a feel-good story about historical correction. It's a reminder that we likely don't know what we're missing right now. When entire categories of people are excluded from scientific work, the science itself becomes incomplete. We're still living with the consequences of that incompleteness—in climate models that came later than they should have, in forecasting systems that took decades longer to develop, in questions that weren't asked because the people who might have asked them weren't in the room.