Long before solar panels rose above former farmland on the edge of campus, Graham Mitchell was doing the difficult, often unseen work of environmental restoration. Over a decades-long career with the State of Ohio Environmental Protection Agency, Mitchell played a central role in the cleanup of the Fernald Nuclear Site, a former uranium processing facility located just miles from Miami University. The remediation of Fernald was one of the most complex environmental cleanups in the country, transforming a contaminated Cold War-era site into a restored landscape that protects public health and regional ecosystems.
That chapter of Mitchell’s life reflects a guiding principle that would later shape his philanthropy: healing land and communities requires long-term commitment, scientific rigor, and moral responsibility. Today, as Mitchell battles cancer, that legacy takes on added weight, underscoring the continuity between his professional life in environmental protection and his investment in climate solutions for future generations.
Mitchell’s connection to Miami University runs deep. He earned his Master’s degree in Environmental Science in 1976, graduating from the Institute for the Environment and Sustainability program founded in 1969 and believed to be the oldest of its kind in the United States, established even before the federal Environmental Protection Agency itself. For more than half a century, Miami University has been preparing environmental leaders to address pressing challenges at the intersection of science, policy, and stewardship. Mitchell is a living example of that impact.
That same ethos now guides Miami University’s ambitious commitment to achieve carbon neutrality by 2040. Rather than relying on carbon offsets or credits, the institution has prioritized investing directly in on-campus infrastructure that reduces emissions while creating educational value. At the center of that strategy stands the Sharon and Graham Mitchell Sustainability Park.
Made possible by a $5 million principal gift from alumni Sharon and Graham Mitchell, the Sustainability Park is a first-of-its-kind project on a college campus: a co-located solar and geothermal energy system. The park features 3,336 ground-mounted solar panels installed above 690 geothermal ground exchange wells, producing approximately 2,000 megawatt-hours of electricity annually beginning in late 2025. It is the largest solar array in Butler County, Ohio, and a cornerstone of Miami’s decarbonization pathway.
“When we heard President Crawford declare that Miami is committed to carbon net neutrality by 2040, and that the university intended to get there by transforming its own campus space, not by buying carbon credits, it aligned perfectly with the change we want to see,” Sharon Mitchell has shared.
Beyond energy generation, the park is designed as a living classroom and community space. Walking paths, connector trails, solar lighting, and educational signage make the infrastructure accessible to students, faculty, and the Oxford community, linking the site to the Miami University Natural Areas. The highly visible solar arrays complement Miami’s extensive, but largely invisible, geothermal system, making the institution’s sustainability leadership tangible.
The park’s primary gateway invites reflection on land, history, and responsibility. It acknowledges that this land was once the homeland of the Miami Tribe, whose people were forcibly removed in the nineteenth century. Members of the Myaamia Center developed a phrase displayed at the entrance in both Myaamia and English: “The earth, water, and sun give life. We must be wise about how we act.”
In that message, and in the Sustainability Park itself, Miami University carries forward the arc of Graham Mitchell’s life work: from environmental remediation to renewable power, from restoring damaged land to safeguarding the climate. The result is not just a source of clean energy, but a living legacy rooted in learning, justice, and care for generations to come.
