Physical Sciences and Mathematics Commons^™

Raising Student Awareness Of Environmental Issues Via Writing Assignments With Differential Equations, Michelle L. Ghrist

CODEE Journal

In this paper, I discuss two environmentally-focused writing assignments that I developed and implemented in recent integral calculus and differential equations courses. These models of carbon storage and PCB’s in a river provide interesting applications of one-compartment mixing problems. The assignments were intended to focus student attention on sustainability concerns while also developing other essential skills. I discuss these assignments and their effect on my students’ technical writing and environmental awareness. Detailed introductory instructions and mostly complete solutions to these assignments appear in the appendices, to include sample student work.

Solar Panels, Euler’S Method And Community-Based Projects: Connecting Differential Equations With Climate Change, Victor J. Donnay

CODEE Journal

How does mathematics connect with the search for solutions to the climate emergency? One simple connection, which can be explored in an introductory differential equations course, can be found by analyzing the energy generated by solar panels or wind turbines. The power generated by these devices is typically recorded at standard time intervals producing a data set which gives a discrete approximation to the power function $P(t)$. Using numerical techniques such as Euler’s method, one can determine the energy generated. Here we describe how we introduce the topic of solar power, apply Euler’s method to determine the energy generated, and …

Population Growth Models: Relationship Between Sustainable Fishing And Making A Profit, James Sandefur

CODEE Journal

In this paper, we develop differential equations that model the sustainable harvesting of species having different characteristics. Specifically, we assume the species satisfies one of two different types of density dependence. From these equations, we consider maximizing sustainable harvests. We then introduce a cost function for fishing and study how maximizing profit affects the harvesting strategy. We finally introduce the concept of open access which helps explain the collapse of many fish stocks.

The equations studied involve relatively simple rational and exponential functions. We analyze the differential equations using phase-line analysis as well as graphing approximate solutions using Euler's method, …

Factory To Table: A Philosophic Analysis Of The Justice Or Lack Thereof Of Agricultural Markets, Will Carter

CMC Senior Theses

How food is produced has dramatic consequences on how we live, our world’s justice, and the future of our planet. In a world increasingly driven by neoliberalism, agricultural markets have been incentivized to industrialize, globalize, and consolidate. This has resulted in the global dominance of a new type of agriculture, industrial agriculture, driven by the market logic of lowering costs and raising profits. Industrial agriculture has undoubtedly generated the profound benefit of cheaper, more plentiful food in much of the world. These favorable innovations lead many scholars to argue that free markets produce the most just and efficient arrangements for …

Shrimp Farming In Thailand: A Pathway To Sustainability, Warinyupa Phornprapha

Pomona Senior Theses

Throughout this thesis I have laid out several factors that have contributed to the sustainability of shrimp farming in Thailand, and if sustainability whilst maintaining production can ever be achieved. To find out the current situation of shrimp farming in Thailand, the history of global and Thai shrimp farming is described. The social and environmental problems of the unsustainable history of shrimp farming in Thailand is then considered. Solutions to these effects conclude that it is up to the consumer to demand for better regulations from the government and the shrimp companies to ensure a sustainable future for shrimp farming …

Green Looks Good On You: The Rhetoric And Moral Identity Of Conscious Consumption Blogs, Abigail O'Brien

Scripps Senior Theses

Conscious consumption blogs are at the center of a particular online community where eco-friendly products are popularized. Through the lens of these blogs, this paper analyzes discourse around identity, purchasing, sustainability, lifestyle, community, and activism, to investigate the forces at work in the conscious consumption movement and identify where there is a need for a shift towards a more political environmentalism. As an environmentalist strategy, conscious consumption disproportionately centers the consumer angle, constructing personal possessions as symbols of sustainability. Language analysis reveals strong individualistic messages about personal belief, preference, and benefit which overwhelm any sense of communal good. Instead, motivation …

Sustainability-Efficiency Paradox: The Efficacy Of State Energy Plans In Building A More Sustainable Energy Future, Austin Zimmerman

Pitzer Senior Theses

State energy plans are created at the request of a sitting governor or State Legislature in order to provide guidance set goals for the state’s energy sector. These plans will be critical indicators of energy trends such as the future market share of coal, natural gas, and renewables. If the future of energy in the United States is to be remotely sustainable, low-carbon policies must headline state plans. The strength of a state’s energy plan in terms of sustainability is directly related to that state’s willingness to prioritize and commit to incorporating energy sources that produce negligible carbon emissions. Questions …

Hydropower, Oil Palm, And Sustainability, Fernando Salud '17

EnviroLab Asia

This reflection touches on the writer’s experiences during the EnviroLab Asia Clinic trip in early 2016 to Borneo, Malaysia and Singapore. The reflection involves two events: a visit to a blockade protesting the construction of a hydroelectric dam and a meeting with the sustainability department of Wilmar, one of the world’s leading palm oil producers. The first event comments on the tension between the need for renewable energy and the destruction of the natural environment and communities due to the particular energy generation technology chosen. This event highlighted the importance of understanding the societal constraints a technology is being installed …

What Does “Sustainable Development” Mean?, Grace Stewart '17

EnviroLab Asia

A recurring theme throughout the EnviroLab Asia clinic trip to Singapore and Malaysian Borneo was the concept of "sustainable development." In this essay, I explore my own thoughts and concerns regarding this phrase, such as the tension that exists between "sustainability" (the maintenance of resources) and the conventional concept of "development" (which consumes resources and can often wreak environmental destruction). I reflect on this tension within the context of environmental issues faced by the Dayak people in Sarawak--the building of the Baram Dam, and the prevalence of oil palm plantations.

Transformation, Wallace M. Meyer Iii

EnviroLab Asia

Prior to leaving for Claremont Colleges’ Envriolab Asia trip to Malaysia and Singapore, I was conflicted by the question: Do we have the moral authority to interfere with resource extraction and oil-palm development in SE Asia? At that time, the trip seemed imperialistic. Why should people from Malaysia, Indonesia or any developing SE Asia country listen to a group of liberal arts college faculty from a city where widespread habitat modifications have led to significant loss of native habitats, declines in biodiversity, and changes in how these ecosystems function? Many observations transformed my opinion and have inspired me to advocate …

Institutional Responses To Pressures For Sustainable Palm Oil, Stephen Marks, Justin Lauw '18, Shivang Mehta '19, Fernando Salud '17

EnviroLab Asia

As the two leading palm oil producing countries, Indonesia and Malaysia have come under external pressures to limit deforestation and greenhouse gas emissions related to land use conversion for oil palm cultivation. We examine various institutional frameworks that have emerged to mediate these pressures. These frameworks can be distinguished by their geographic scope—domestic, region, and global—as well as by the nature of control—private, non-profit, and governmental. The frameworks have taken the form of sustainability certification systems from non-profit organizations or governments, corporate sustainability policies, or the setting through global or bilateral negotiations of voluntary national targets for limiting deforestation or …

Bioswales For Stormwater Remediation And Infiltration: Assessing Regulatory Climate And Quantifying Filtration Capacity Of A Claremont Bioswale, Skyler Lewis, Boyu Liu, Paul Picciano, Liana Solis, Char Miller

Environmental Analysis Program Senior Projects

Watershed management is critical in ensuring a sustainable water supply. This project is designed to assess the impact of bioswales in the context of Southern California’s climate. The patterns of droughts and floods make these green infrastructure appealing as they offer potential to boost water quality and regenerate local aquifers, while reducing the area of impermeable surfaces in our urban landscape. As bioswales have not been commonly incorporated into infrastructure development, our project focuses on a relatively new bioswale, added in 2012 and located on Pomona College’s campus, to serve as our case study in determining the viability of bioswales …

Moving Towards A Greener Future: An Investigation Of How Transit-Oriented Development Has The Potential To Redefine Cities Around Sustainability, Margaret E. Smith

Scripps Senior Theses

How does transportation shape the cities we live in? This paper takes a close look at the practice of transit-oriented development to assess its implications for the future of urban areas. Through the design of a hypothetical light rail station in the suburb of Redmond, WA, this paper demonstrates how targeting sustainable development around transit has the potential to influence entire towns to “go green,” and proposes that, moving forward, cities be designed to maximize mobility, livability, and sustainability.

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 …

Biodynamic Agriculture: A Valuable Alternative To The Industrial Farming System, Eden K. Olsen

Scripps Senior Theses

Since the Scientific and Industrial revolutions, advancing technologies and cutting-edge science have enabled our society to continually promote a growing global economy. Industrial growth has increasingly become a top priority for most governments, notably in the agricultural realm. The advances towards agricultural industrialization began in the 17^th century and escalated during the Green Revolution, which examined the possibility of using synthetic fertilizers and mechanization in farming to decrease labor and improve yields. Although seen as economically beneficial, the shift from an agrarian lifestyle to industrial farming has created an ecological, economic, and ideological crisis to our modern world. This …

The Reclamation Of Public Parks: An Analysis Of Environmental Justice In Los Angeles, Allison Rigby

Scripps Senior Theses

People who live in cities are far more likely to suffer the physical and psychological effects of urban environments--high noise levels, automobile emissions, toxic industrial waste, crowded living conditions, and a general scarcity of open space. Combating these issues, public parks do more than provide recreational space. They are fundamental to any efforts focusing on urban revitalization, social justice, and sustainability. In downtown Los Angeles, public parks are rare, especially in low-income communities. Several new public parks have reclaimed abandoned land, unwelcoming spaces, and the City’s brownfields. After years of intense private use and neglect, spent land has been reinvigorated …

Pitzer College Outback Preserve Restoration Project, Paul Faulstich

Pitzer Faculty Publications and Research

A question we keep asking ourselves in environmental analysis at Pitzer College is whether it’s possible to create modern socionatural systems that are truly sustaining; that is, that avoid the features of contemporary systems in which the human factor dominates to the detriment of the environment. Any genuinely sustainable society must honor diversity— cultural and biological—and, at Pitzer, we’re committed to forging innovative directions for a healthy future. Toward this end, students, along with faculty and staff, have initiated a program of ecological restoration in the Pitzer College Outback Preserve.

Quantitative Approaches To Sustainability Seminars, Rachel Levy

All HMC Faculty Publications and Research

How can mathematicians contribute to education of about sustainability? Mathematicians study climate change, energy-related technologies, models of energy availability, production and consumption, and even the political and social aspects of sustainable legislation and practices. However, at this point, few courses on sustainability can be found in math department offerings. When we consider problems that our current and future students will face, energy sustainability certainly seems important. But how many of these ideas reach our classrooms?

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.

Public Housing In The United States: Using Sustainable Urbanism To Combat Social Exclusion, Jasmine L. Edo

Scripps Senior Theses

The United States government has taken steps to assure underprivileged citizens housing in the form of public housing through the Department of Housing and Urban Development, as well as various humanitarian programs in the form of homeless shelters. Yet, all housing is not equal. Our freedom to choose where we live and what type of house we live in is one revered aspect of life as a United States citizen. We can express our individuality, creativity, and personality through the architectural style of our homes. In this sense it is hard to ask for equal housing. I am suggesting that …

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. …

Growing A Better Food System: An Analysis Of The Impact Of California School Gardens On The Sustainable Food And Food Security Movements, Michael Press

Pomona Senior Theses

In recent decades, environmental problems associated with conventional agriculture, children’s nutrition, and concern over the adequacy of the current food supply have led to the emergence of the sustainable food and food security movements. These issues have also inspired the state of California to pass legislation to place a garden in every school in the state. This thesis analyzes the accuracy of this policy’s implementation and its effects on the sustainable food and food security movements. Research found that the loss of state funding for this policy and the administrative, logistical, and informational barriers to establishing garden education programs has …

Teaching For Change: The Leadership In Environmental Education Partnership, Paul Faulstich

Pitzer Faculty Publications and Research

Humans are transforming earth's landscape from a natural matrix with pockets of civilization to just the opposite. Most of us realize that this pattern is not sustainable. I live and work in Claremont, California, a charming college town in the midst of suburban sprawl. The town has a central village of terminally tasteful, overpriced bungalows nestled in the shade of tall, largely exotic trees. Indeed, most of the landscape of this "city of trees and Ph.D.s" has been imported; only a remnant parcel of coastal sage scrub that the Claremont Colleges have reluctantly preserved remains.