The Science Behind Sustainability at Pacific
Photo by Unsplash
How Campus Systems Are Designed for a Greener Future
Sustainability on college campuses often shows up in familiar ways: recycling bins, solar panels on rooftops, and reminders to conserve water. But behind these everyday practices at University of the Pacific, is a system rooted in environmental science, behavioral psychology, and long-term climate research. Scientific organizations like the Intergovernmental Panel on Climate Change emphasize that reducing greenhouse gas emissions and improving resource efficiency are critical steps in slowing global warming (Intergovernmental Panel on Climate Change [IPCC], 2023).
To understand how these initiatives work, this article draws on insights from Jessica Bilecki, Head of the Sustainability Department at Pacific, who explained how science, data, and student behavior all intersect to shape campus sustainability.
A Campus Built on Systems
Pacific’s sustainability efforts are organized into three main areas: transportation, waste reduction, and utilities.
Transportation plays a major role in lowering the University’s carbon footprint. Programs like discounted bus passes, Zipcar access, e-bike rentals, the Pacific shuttle system, and electric vehicle charging stations, are designed to reduce dependence on personal vehicles. According to the U.S. Environmental Protection Agency (EPA), transportation is one of the largest sources of greenhouse gas emissions in the United States, largely due to the burning of fossil fuels (U.S. Environmental Protection Agency [EPA], n.d.).
By reducing the number of gas-powered trips, these programs directly lower carbon dioxide emissions, helping to mitigate climate change.
Waste: Small Actions That Have Big Environmental Consequences
One of the most visible parts of campus sustainability is waste sorting, with recycling, composting, and landfill systems across campus. However, Bilecki emphasized that what seems simple on the surface is actually a complex environmental system.
“When compost ends up in a landfill, it breaks down without oxygen and produces methane,” she explained. “Methane is about 26 times more powerful than carbon dioxide as a greenhouse gas.” This aligns with EPA data showing methane as a highly potent greenhouse gas that significantly contributes to global warming (EPA, n.d.).
That scientific detail is why proper waste sorting matters so much. Composting allows organic materials to decompose in oxygen-rich environments, reducing methane emissions. Recycling also plays a key role by reducing the need for raw material extraction. The EPA notes that recycling conserves natural resources, reduces energy use, and decreases environmental damage associated with mining and deforestation (EPA, n.d.).
But contamination remains one of the biggest challenges.
“If one item is placed in the wrong bin, like a Starbucks cup with leftover drink, it can contaminate an entire batch,” Bilecki said. “That’s why education is just as important as infrastructure.”
Currently, Pacific diverts about 48% of its waste away from landfills, with a long-term goal of reaching 90% diversion.
The Science Behind Solar Power on Campus
Renewable energy is another major focus at Pacific. The Stockton campus currently generates just under 30% of its energy from on-site solar panels, while the University also purchases renewable electricity through its utility provider, bringing total electricity use to 100% renewable across all campuses.
Solar panels work through the photovoltaic effect, where sunlight excites electrons in semiconductor materials like silicon, generating electricity. The U.S. Department of Energy explains that this process allows solar panels to convert sunlight directly into usable electrical energy without producing emissions (U.S. Department of Energy [DOE], n.d.).
Research also shows that this energy source significantly reduces greenhouse gas emissions compared to fossil fuels and becomes more cost-effective over time due to minimal operating costs (IPCC, 2023).
“Solar is one of the most impactful long-term investments we’ve made,” Bilecki said.
Water Conservation in a Drought-Prone State
Water conservation is especially important in California, where prolonged drought conditions have made efficient water use essential. Climate change has intensified drought cycles, making water management a critical issue across the state (California Department of Water Resources [DWR], n.d.).
Pacific has implemented low-flow faucets, high-efficiency toilets, water-saving showerheads, drip irrigation systems, and smart sensors that detect soil moisture before watering landscapes. Landscaping has also been redesigned to include drought-resistant plants that require less water.
These strategies align with environmental research showing that conservation technologies and efficient irrigation systems can significantly reduce water waste and protect regional ecosystems (DWR, n.d.).
Science, Data, and Decision-Making
According to Bilecki, sustainability decisions at Pacific are guided by environmental research, lifecycle analysis, and climate modeling.
Lifecycle analysis evaluates the full environmental impact of materials, from production to disposal, while climate models help predict long-term outcomes of emissions and resource use. These scientific tools are widely used in sustainability planning to ensure decisions are both effective and evidence-based (IPCC, 2023).
However, sustainability science is constantly evolving.
“There are ongoing debates in environmental science about the most effective strategies,” Bilecki said. “That’s why we rely on peer-reviewed research and continually reassess our practices.”
When Federal Policy Changes, What Happens Locally?
While federal agencies like the EPA influence national environmental standards, Bilecki noted that campus sustainability is largely driven internally.
Still, broader policy shifts can impact how environmental harm is measured. Scientists typically use metrics like greenhouse gas emissions, water quality, and pollution exposure to evaluate environmental impact (EPA, n.d.).
“If federal oversight weakens, universities still have a responsibility to maintain strong standards,” Bilecki said. “We can’t wait for external systems to tell us what matters.”
The Human Side of Sustainability
Despite advanced systems and scientific models, Bilecki emphasized that sustainability ultimately depends on people.
“Technology alone isn’t enough,” she said. “Behavior is what determines whether these systems actually work.”
Student participation, especially in proper waste sorting and conservation practices, is essential to achieving sustainability goals.
Looking Ahead
Over the next decade, Pacific aims to expand renewable energy use, improve waste diversion rates, and further integrate sustainability into campus life and academics.
“It’s not just about meeting goals,” Bilecki said. “It’s about building a campus culture where sustainable choices become second nature.”
Conclusion
At University of the Pacific, sustainability is more than an initiative; it is a system grounded in environmental science, and constantly evolving with new research.
From solar energy and waste management to water conservation and climate modeling, each effort reflects a larger goal: reducing environmental impact while educating a community that understands the science behind its choices. As global research continues to show, small, consistent actions, when supported by science, can lead to meaningful environmental change (IPCC, 2023).
References
U.S. Environmental Protection Agency. (n.d.). Overview of greenhouse gases: Methane.
https://www.epa.gov/ghgemissions/overview-greenhouse-gases#methane
U.S. Environmental Protection Agency. (n.d.). Sustainable materials management basics.
https://www.epa.gov/smm/sustainable-materials-management-basics
U.S. Department of Energy. (n.d.). Solar photovoltaic technology basics.
https://www.energy.gov/eere/solar/solar-photovoltaic-technology-basics
Intergovernmental Panel on Climate Change. (2023). Climate change 2023: Synthesis report.
https://www.ipcc.ch/report/ar6/syr/
California Department of Water Resources. (n.d.). California water plan. https://water.ca.gov/programs/california-water-plan
Bilecki, J. (2026). Personal interview. University of the Pacific.