Physical Sciences and Mathematics Commons^™

Contaminants Of Emerging Concern: Reconsidering Our Paradigm Of Water Pollution, Jonathan Gunasti

Pomona Senior Theses

In this senior thesis, I explore contaminants of emerging concern (CECs) and endocrine disrupting compounds (EDCs) and discuss the ways in which these novel contaminants defy traditional notions of pollution. I discuss the history and “emergence” of CECs and EDCs in scientific and public spheres and outline ongoing challenges to recognizing, prioritizing, and understanding the action of these contaminants. I position EDCs within the framework of environmental injustice and health disparities and suggest that these compounds could reinforce multigenerational health inequities. Finally, I perform a pilot analysis of the EDC bisphenol A (BPA) in Mt. Baldy Creek, the Los Angeles …

In The Eye Of The Storm: Houston After Hurricane Harvey, Brandon Tolentino-Serrano

Pomona Senior Theses

Situated in one of the wettest climates in America, Houston, TX has had a long history of heavy rains and unprecedented floods. Unfortunately, floods have become more common over the last few decades as climate change increases the frequency and intensity of hurricanes around the globe. To complicate matters further, Houston has quickly sprawled to accommodate over 2.5 billion people. Rapid urbanization has rendered the landscape even more susceptible to floods through excess concretization and watershed disturbance. This thesis traces the history of the Bayou City in relation to the damages caused by Hurricane Harvey. By mapping out the original …

Island Invasion: The Silent Crisis In Hawaii, Sophia Janssen

Pomona Senior Theses

Keeping out invasive species may, upon first review, seem like a trivial environmental cry from ecologists and deep environmentalists; a belated wish to return to an undeveloped world where nature was pristine. However invasive species create problems that impact all of us and can have far more severe consequences than changing a stunning landscape. These problems are heightened in islands like Hawaii, where the fragile ecosystems have developed over centuries of evolution and adaptation. The introduction of a disease-carrying mosquito can put the people of Hawaii at risk to many vector-born illnesses and create an epidemic, taking human life. The …

Farm To Label: A Critique Of Consumer Activism In The Sustainable Food Movement, Olivia Whitener

Pomona Senior Theses

“Local,” “organic,” “natural,” and “Fairtrade” are just several of the many claims adorning the food products that line grocery store shelves. These promises of environmental sustainability and social responsibility are pillars of the “good food revolution” sweeping the nation as consumers demand alternatives to the products of the industrial food system. Green consumerism, the premise that consumer demand for environmentally sustainable goods will bring about ecologically beneficial outcomes, is at the heart of the sustainable food movement. This thesis takes a critical look at the operation of green consumerism in the food system. It explores the ideology and shortcomings of …

Soil Erosion Risk Factors And The Impacts Of Diversification On Organic Strawberry Farms Along California’S Central Coast, Kay Sterner

Pomona Senior Theses

Soil erosion is a major issue that threatens to undermine our current system of agriculture. Due to the fact that this system is in turn the number one cause of erosion, agricultural practices in the United States need to be rethought. This study explores how traditional ideas of erosion risks are related to observed erosion on organic strawberry farms along California’s Central Coast. In addition, diversified farming systems are addressed as a possible solution for the current unsustainability of our farming practices. The data from this research suggest that diversity of crops on farms could be linked to less soil …

Climate Change Adaptation For Southern California Groundwater Managers: A Case Study Of The Six Basins Aquifer, Frank Lyles

Pomona Senior Theses

Groundwater has been very important to the economic development of Southern California, and will continue to be a crucial resource in the 21st century. However, Climate Change threatens to disrupt many of the physical and economic processes that control the flow of water in and out of aquifers. One groundwater manager, the Six Basins Watermaster in eastern Los Angeles and western San Bernardino Counties, has developed a long-term planning document called the Strategic Plan that mostly fails to address the implications of Climate Change, especially for local water supplies. This thesis presents an in-depth analysis of the Six Basin Watermaster’s …

Turning Waste Into Compost In Napa, California, Liana D. Solis

Pomona Senior Theses

Two significant pieces of legislation in California have mandated that cities and counties must reduce their waste streams. Assembly Bill 341 establishes that California must divert 75% of its waste from landfills by the year 2020. The first bill that included composting, Assembly Bill 1826, was passed in 2014 and requires that commercial users enact composting beginning in 2016. These initiatives have led cities and counties to seek ways of implementing composting programs. Using the City of Napa as a case study, this thesis argues that a composting program can be integrated into any existing waste hauling service. Although there …

Discovery Islands, Earth Islands: The Theory And Practice Of Island Imagery In Environmental Thought, Naomi A. Bosch

Pomona Senior Theses

Earth Island is a core metaphor of activist thought often applied in Environmental Analysis and related fields as a tool for thinking about the planet’s limited resources. It puts forth the claim that if only we thought of the earth as more like an island, we would better understand our connectivity to other living things and be drawn to develop better and more extensive practices of environmental stewardship. This thesis uses personal accounts of environmental life philosophies and political practices collected from residents of the Discovery Islands in British Columbia as a site for analytical comparison between the theory and …

Reforestation, Renewal, And The Cost Of Coal: Opposing A Manichean Worldview In Central Appalachia, Elizabeth R. Hansen

Pomona Senior Theses

Surface coal mining is a major form of land change and environmental degradation in Central Appalachia. Traditional mine reclamation iresults in unmanaged, unproductive grasslands that fail to mitigate many of the environmental costs of coal mining and are of minimal use to communities. Forestry reclamation is an alternative reclamation tactic that has the potential to address both environmental and socioeconomic concerns in Central Appalachia. A case study of Laurel Fork Mine in Eastern Kentucky is included.

Looking Beyond Fossil Fuel Divestment: Combating Climate Change In Higher Education, Robin Xu

Pomona Senior Theses

The young fossil fuel divestment movement is altering the landscape of climate change activism on US campuses. Student-run divestment campaigns are now pushing for institutions of higher education to withdraw their investments from the top 200 public fossil fuel companies. Despite student fervor, however, divestment has remained a controversial tactic for combating climate change. The first half of this thesis examines the stated motives of a selection of institutions that have officially agreed or declined to divest, and investigates the hypothesis that pushing for divestment alone will not achieve broad success because it does not appeal to a wide enough …

Spreading The Char: The Importance Of Local Compatibility In The Diffusion Of Biochar Systems To The Smallholder Agriculture Community Context, Laura C. V. Munoz

Pomona Senior Theses

This thesis enters the context of smallholder agriculture communities in the developing world. It explores the potentials of biochar and what biochar systems could bring to the smallholder communities while simultaneously bringing environmental benefits. It then acknowledges the challenges of diffusion –the spreading of an unfamiliar innovation. It seeks to answer the question of what will make diffusion of biochar systems more successful in the smallholder context, fixating on the characteristic of compatibility as well as the role local community members can play in making a new biochar system more visible to the rest of the communities.

Floatovoltaics: Quantifying The Benefits Of A Hydro-Solar Power Fusion, Abe Mckay

Pomona Senior Theses

To slow climate change, humans should take immediate and widespread action. One way to slow climate change is by switching to switch to renewable power plants such as solar fields. Recently, pioneering companies have built solar fields on water bodies. This study found that such a pairing of water and solar could increase production efficiency by 8-10% through panel cooling, save millions of liters of water from evaporation, and produce energy with under-utilized space.

A Policymaker's Guide To Feed-In Tariffs: Encouraging A Responsible Transition To Renewable Electricity In California, Roland P. Thayer

Pomona Senior Theses

The feed-in tariff is a flexible, yet effective mechanism in promoting the proliferation of renewable electricity in California. The tariff creates a stable investment environment that protects both the utilities and the renewable electricity generators. Not only does the system foster capacity growth, but also technological advancement to the point where renewable electricity can compete in the market without assistance. From an environmental standpoint, the feed-in tariff contributes significantly towards achieving the emissions reduction goals set forth by AB32 without causing harmful increases to electricity prices.

The feed-in tariff model has been used in countries all over the world and …

A Guide To The Pomona College Organic Farm: An Introduction To The Farm’S History And Basic Gardening Skills And Techniques, Adam J. Long

Pomona Senior Theses

It was almost four years ago when I first visited the Pomona College Organic Farm and since then I have learned everything from the basics of gardening to the complex steps required to organize students for events and activities. As I learned more and saw so many students come and go, I saw a need for written documentation that would allow future generations of students to benefit from the skills that my peers and I have learned in our time at the Farm. The value of the Farm is grounded in having a vibrant physical space, and right now the …

Justified By Faith: The Upper Susquehanna Lutheran Synod And The Pennsylvania Natural Gas Fracking Controversy, Lena R. Connor

Pomona Senior Theses

An exercise in applied Christian ecotheology, this thesis focuses on a community of Lutheran church bodies (ELCA) in North Central Pennsylvania as they grappled with natural gas hydraulic fracturing in the summer of 2012. In the paper, I employ a combination of theological, environmental, historical, and ethnographic research methodologies to ground my analysis of how this synod of Lutherans to date has approached the fracking boom. My primary research question is: How might the Upper Susquehanna Synod of the ELCA--as a representative body of 131 Lutheran churches that are steeped in tradition--use its history, community involvement, theology, and church structure …

Bikeurious: A Transportation Reorientation, Aerienne Russell

Pomona Senior Theses

Since a young age, I have been interested in bicycling as a form of fun and fanciful recreation, but it wasn’t until the summer of 2011 that a serious shift occurred in my understanding of the bike as more than a mere machine. A spontaneous 700-mile journey redefined my relationship with travel, transcended my notions of transportation, and enabled me to better mediate myself within my environment. In writing about these experiences, I hope to offer some insight into how American culture currently frames transportation and how I hope the construction of a bike positive culture can instill social, environmental, …

Agricultural Efficiency And The End Of The Oil Age; Building A Future Of Longevity, Keith Mchugh

Pomona Senior Theses

This thesis uses an efficiency analysis of agricultural systems to assert that, in lieu of rising prices of fossil fuel, people need to come into more direct contact with their food systems. With a switch to smaller, more efficient farms that rely less on fossil fuel and are connected with the communities they supply for, we can avoid an energy crisis turning into a famine. These smaller-scale systems can help create self-contained, carbon-neutral communities.

The Full Cost Of Renewables: Managing Wind Integration Costs In California, William Savage

Pomona Senior Theses

Wind power will be an important component of California's aggressive strategies to meet its greenhouse gas reduction targets by the year 2020. However, the costs of integrating wind power's variable and uncertain output are often ignored. I argue that California must take prudent action to understand, minimize, and allocate wind integration costs. A review of numerous studies suggests that for wind penetration levels below 20%, integration costs should remain modest. However, costs are heavily dependent on market structure, and I suggest numerous ways that California can optimize its market design to manage wind integration costs.

Arsenic Contamination In Groundwater In Vietnam: An Overview And Analysis Of The Historical, Cultural, Economic, And Political Parameters In The Success Of Various Mitigation Options, Thuy M. Ly

Pomona Senior Theses

Although arsenic is naturally present in the environment, 99% of human exposure to arsenic is through ingestion. Throughout history, arsenic is known as “the king of poisons”; it is mutagenic, carcinogenic, and teratogenic. Even in smaller concentrations, it accumulates in the body and takes decades before any physical symptoms of arsenic poisoning shows. According to the World Health Organization (WHO), the safe concentration of arsenic in drinking water is 10 µg/L. However, this limit is often times ignored until it is decades too late and people begin showing symptoms of having been poisoned.

This is the current situation for Vietnam, …

Environmental Critiques Of Nuclear Energy, William Hummel

Pomona Senior Theses

This essay identifies and evaluates the most common environmental critiques made against nuclear energy development. Environmentalists articulate four major concerns: the destructive effects and health risks of uranium mining; the dangers posed by radiation releases and meltdowns; the difficult of nuclear waste disposal; and national security concerns, including nuclear weapons proliferation and the possibility of attack or sabotage. By characterizing and describing these concerns, we are better able to decide which problems are most compelling, and suggest possible policy-driven solutions.

Day To Day Change Making: The Transformative Potential Of Dumpster Diving, Elizabeth Emery Donovan

Pomona Senior Theses

This paper investigates the potential of dumpster diving as a tactic of the freegan movement. The goal of the freegan movement is the realization of a postcapitalist world. I first investigate the scope, legality and demographic of dumpster diving in the U.S. I then contextualize dumpster diving within the history of waste, consumerism and excess in the U.S. since the beginning of the 20th century. I conclude by assessing the viabaility of freegan dumpster diving as a transformative tactic in light of its inaccessibility to various individuals as a result of their race and class. I ultimately argue that freeganism …

Aquculture And Deforestation In The Peruvian Amazon, Gator Halpern

Pomona Senior Theses

This study examines whether aquaculture has the potential to reduce deforestation in the Peruvian Amazon. The natural resources of the Peruvian Amazon are subject to extreme pressures due to increases in subsistence farming, cattle ranching, and logging in the region. The resulting loss of biodiversity has affected the delicate soil balance that is characteristic of the Amazon, and has contributed to water pollution as well as erosion (Guerra et al. 2001). One of the highest rates of deforestation in the Amazon basin can be found at the foothills of the eastern Andes (Lepers et al. 2005), which includes the area …

Is Leed A True Leader? Studying The Effectiveness Of Leed Certification In Encouraging Green Building, Megan M. Turner

Pomona Senior Theses

Leadership in Energy and Environmental Design (or LEED) is the most commonly used green building rating system in the United States, bestowing upon LEED certified buildings the prestige of being considered more sustainable than their non-certified neighbors. The public often assumes that LEED certified buildings are completely sustainable or even net-zero with regards to greenhouse gas emissions, but in actuality buildings certified under the most popular version of LEED are only required to be 15% more energy efficient than required by most state building codes – a far cry from the energy usage cuts needed to stave off global warming. …

Time To Get Real: A Food Assessment Of Dining At Pomona College, Samantha Meyer

Pomona Senior Theses

Pomona College is an institution deeply committed to sustainability and student well being; however these commitments are not reflected in the College’s food purchases. Before this study, an assessment of purchasing had not been conducted at Pomona College. Using the Real Food Calculator – a metric designed to evaluate food purchasing at academic institutions – I tracked all food purchased by one of the College’s dining halls over the course of one month. Each food item was assessed based on the potential health concerns of its ingredients and whether the item was locally produced, ecologically sound and/or humane to determine …

Whole Foods: Renewable Energy Credits, Green Business, And Capitalist Approaches To Climate Change, Samantha Kanofsky

Pomona Senior Theses

Dedication. Acknowledgements. Preface. Chapter 1: Introduction. Chapter 2: Green Business and Carbon Offsetting. Chapter 3A: Case Study. Chapter 3B: Interview. Chapter 4: Case Study. Chapter 5: Conclusion. Bibliography.