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Articles 601 - 630 of 980
Full-Text Articles in Sustainability
Sparking Awareness In Lincoln Electronic Waste Trends And Habits: A Student Behavioral Analysis, Zowie Vincent
Sparking Awareness In Lincoln Electronic Waste Trends And Habits: A Student Behavioral Analysis, Zowie Vincent
Department of Environmental Studies: Undergraduate Student Theses
Nebraska is recognized as one of the few states that have not established any laws or practices managing electronic waste. Along with no e-waste management laws, there is also a lack of studies discussing the behavioral trends and habits towards electronic devices and how to dispose of them once they are unable to function. Continuing to ignore the choice of recycling electronics results in further damage towards the environment, human and animal health, as well as an economic opportunity of a growing market. This study focuses on the trends and habits of electronic consumption, usage, and disposal amongst students at …
Using The Theory Of Planned Behavior To Understand The Behavioral Use Of Single-Use Plastic Bags By Students At The University Of Nebraska–Lincoln, Josephine Stoessel
Using The Theory Of Planned Behavior To Understand The Behavioral Use Of Single-Use Plastic Bags By Students At The University Of Nebraska–Lincoln, Josephine Stoessel
Department of Environmental Studies: Undergraduate Student Theses
Reduction in the use of single-use plastic bags is a necessary sustainability step as it will reduce pollution of air, soil, waterways, and ingestion by marine animals. The Theory of Planned Behavior is used in this study to determine which components are the influencing factors for why students at the University of Nebraska-Lincoln use single-use plastic bags. An understanding of these factors allows for suggestions and recommendations for actions that can be taken by the university to combat this environmental issue. EcoCoin is an incentive-based program created by Penn State, and is the focus of this study. The literature review …
The Relationship Between Time And Plant Diversity In Prairie Restorations Within The Prairie Corridor On Haines Branch, Elizabeth Park
The Relationship Between Time And Plant Diversity In Prairie Restorations Within The Prairie Corridor On Haines Branch, Elizabeth Park
Department of Environmental Studies: Undergraduate Student Theses
This study focuses on better understanding the relationship between the age of prairie restorations and their plant diversity. The study looks specifically at the prairie restorations within the Prairie Corridor on Haines Branch, located west of Lincoln, Nebraska. The data gathered from these restorations show a positive correlation between age and native plant diversity. This diversity indicates that the restorations are fulfilling their purpose by bringing native prairie plants back to the area. From the data I came to these four conclusions, 1) Because the study only included two restorations greater than 10 years old, it is unclear if the …
Effects Of Land Use In Nebraska On Insect Biodiversity And Eastern Monarch Populations, Carina Olivetti
Effects Of Land Use In Nebraska On Insect Biodiversity And Eastern Monarch Populations, Carina Olivetti
Department of Environmental Studies: Undergraduate Student Theses
How are Nebraska land use decisions affecting eastern monarch butterfly decline? What are the driving factors causing monarch decline? What are the challenges of insect monitoring and data organizing? The purpose of this exploratory research project was to investigate these questions and simultaneously illustrate the importance of insect biodiversity, focusing largely on the monarch butterfly. The eastern population of the monarch butterfly has declined 80% over the past two decades. The state of Nebraska lies within their migratory path and is therefore critical to their survival. The hypothesis is that monarch populations are declining because of the combined impacts of …
Distribution Of Green Spaces In Omaha, Nebraska, Sofia Gavia
Distribution Of Green Spaces In Omaha, Nebraska, Sofia Gavia
Department of Environmental Studies: Undergraduate Student Theses
The distribution of parks often depends on the races, ethnicity, and socioeconomic class of a community’s households. Parks and green spaces provides community residents recreational opportunities, economic benefits, and improves community public health. The unequal distribution of parks and green spaces in a city is a social issue found across the country. Limited research has been done on the relationship between green spaces and park access and social justice in Omaha, Nebraska. This study discusses whether there is a difference in how parks are distributed in Omaha, NE in terms of social justice and equitable distribution. Research is done using …
Analysis Of Drinking Water Disinfection Options, Bryce Carlen
Analysis Of Drinking Water Disinfection Options, Bryce Carlen
Department of Environmental Studies: Undergraduate Student Theses
This thesis utilizes existing research to provide a framework that can be used for community and disaster planning. It analyses the critical process of water disinfection for drinking water. It focuses on chemical, distillation, and ultraviolet treatments in both centralized and point-of-use treatment. This thesis aims to provide a method for communities to determine the optimal water treatment, utilizing a framework based on weighted criteria. The decision-making framework is an easy-to-use and flexible process that communities can tailor for their specific needs to find the optimal treatment relative to their needs. In this study’s generalized example, ultraviolet treatment and distillation …
Audit Of Waste Collected Over One Week From Superior Dental Health Of Lincoln, Bryclin Alstrom
Audit Of Waste Collected Over One Week From Superior Dental Health Of Lincoln, Bryclin Alstrom
Department of Environmental Studies: Undergraduate Student Theses
A waste audit of Superior Dental Health of Lincoln was conducted in order to propagate the implementation of sustainable waste management practices within the company. Differentiating between hazardous waste and solid waste is necessary for environmentally friendly waste management and ceasing the spread of infectious pathogens. The audit identified nine different materials contributing to the biomedical waste stream of the company. Of which, personal protective equipment (PPE) is of major concern due to the financial commitment necessary to acquire / dispose of these products, as well as the strain in supply due to the current COVID-19 pandemic. The results of …
Long-Term Impacts Of 2019 Flood Experiences On Nebraskans’ Climate Change Perceptions, Caitlin Kingsley
Long-Term Impacts Of 2019 Flood Experiences On Nebraskans’ Climate Change Perceptions, Caitlin Kingsley
Department of Environmental Studies: Undergraduate Student Theses
This study examines climate change perceptions in Nebraskans who experienced or witnessed flooding in March 2019. The purpose is to determine the impacts of 2019 flood experiences on Nebraskans’ climate change perceptions. The objectives are to determine the influence of flood proximity on changes in climate change perceptions, determine whether 2019 flooding had long-term impacts on Nebraskans’ climate change perceptions, and determine the influence of personal background factors on perceptions. A three-phase interview was utilized to collect background information, climate change perceptions, 2019 flood experiences, and relationships between 2019 flood experiences and climate change perceptions. Background information and climate change …
The Effect Of Urban Forests On Air Quality And Human Health, Chance Wilken
The Effect Of Urban Forests On Air Quality And Human Health, Chance Wilken
Department of Environmental Studies: Undergraduate Student Theses
Following the industrial revolution, the impacts of climate change have been increasingly impactful on both rural and urban populations around the world. As population density and urbanization increase throughout the globe, the influences of climate change will continue to play a dangerous role in its influence on people's lives. Due to negative health impacts on humans and the economic costs in cities, climate change is one of the most important issues to understand in the 21st century. Air quality and human health are two components of climate change that are impacted most significantly. The bulk of this work is to …
Designing A Mobile App And Online Directory To Increase The Visibility Of Environmental Organizations In A Community, Kayla Vondracek
Designing A Mobile App And Online Directory To Increase The Visibility Of Environmental Organizations In A Community, Kayla Vondracek
Department of Environmental Studies: Undergraduate Student Theses
Concern for environmental degradation, natural resource depletion, and public health has long been a necessary part of a strongly developed and sophisticated society. Humans are primarily responsible for the depletion of the natural environment as it supplies the commodities required to ensure the long-term survival of civilizations. As cultures continue to evolve, so does the practice of land stewardship and protection of resources. With the necessary expansion of industry and housing needed to support a rising human population, the management of natural resources, pollution control, and the environment has become increasingly important to people worldwide. Bernstein and Szuster (2019) suggest …
Investigating Predation Risk Experienced By Wintering Birds At A Supplied-Food Garden, Madison Smart
Investigating Predation Risk Experienced By Wintering Birds At A Supplied-Food Garden, Madison Smart
Department of Environmental Studies: Undergraduate Student Theses
Wintering birds are particularly susceptible to predation while foraging at feeders. The ‘starvation vs. predation’ survival trade-off is felt most acutely in winter because energy demands are higher compared to milder seasons. This study investigated sense of predation risk experienced by members of a wintering mixed-species flock. The objective was to determine which species take on increased predation risk in order to forage at feeders, and if there was bias for one species over another. A raptor (experimental) and non-raptor (control) model were presented to a mixed-flock at feeders within Pioneers Park Nature Center. The first species to return to …
Precipitation Impact On Crop Yield, Ian Ritchie
Precipitation Impact On Crop Yield, Ian Ritchie
Department of Environmental Studies: Undergraduate Student Theses
Climate change is a massive force impacting and changing many weather trends, including precipitation rates. This thesis will study the relationship between crop yield and changes in precipitation. Understanding crop yield is important in determining overall crop supply every year as well as crop prices. Many factors can have either a negative or a positive impact on crop yields. One of these many factors is precipitation. This thesis looks directly at the impacts of changes in precipitation on corn yield in Iowa from 1991-2020. To do this, a regression analysis was performed to compare changes in yearly precipitation rates for …
The Bay Area Rail System: A Sustainable Network Or A Social Equity Phenomenon?, Whitney Libunao
The Bay Area Rail System: A Sustainable Network Or A Social Equity Phenomenon?, Whitney Libunao
Master's Projects and Capstones
Sustainable transportation, as it relates to sustainable development, aims to achieve economic stability, social equity, and environmental preservation via transit projects. However, gentrification processes and transit-oriented developments or TODs have attracted more households inward toward reinvested transit-centric areas. The San Francisco Bay Area, California has continued to see positive economic growth, with that, higher-income households inhabiting more centralized locations. Native low-income residents have started to feel displacement pressures on both a social and economic scale. Over time, displacement risk inevitably leads to residential displacement where low-income families are forced to relocate to distant, more affordable neighborhoods. As more distance separates …
Integrating Digital Tools In Remote Learning To Enhance The Delivery Methods Of Technical Content In Undergraduate Geosciences, Ruslana Baker, Malek Shami, Nazrul I. Khandaker, Stanley Schleifer
Integrating Digital Tools In Remote Learning To Enhance The Delivery Methods Of Technical Content In Undergraduate Geosciences, Ruslana Baker, Malek Shami, Nazrul I. Khandaker, Stanley Schleifer
Publications and Research
The global transition to remote learning due to the COVID-19 pandemic was an extremely difficult task for both students and faculty in geological sciences. Technical courses, such as Structural Geology, Mineralogy, Petrology, and Invertebrate Paleontology, that require in-person lectures and laboratory sessions involving various rocks and mineral samples, fossils, maps, and models, were a major concern at the start. The challenge of delivering the technical content via Microsoft Teams, Skype, Webex, Blackboard Collaborate Ultra, Zoom, and other internet based platforms was not only a burden for the faculty to carry, as students were struggling to conceptualize outcrop-and-type-section-based information and link …
Assessment Of Switchgrass-Based Bioenergy Supply Using Gis-Based Fuzzy Logic And Network Optimization In Missouri (U.S.A.), Gia Nguyen, Erik Lyttek, Pankaj Lal, Taylor Wieczerak, Pralhad Burli
Assessment Of Switchgrass-Based Bioenergy Supply Using Gis-Based Fuzzy Logic And Network Optimization In Missouri (U.S.A.), Gia Nguyen, Erik Lyttek, Pankaj Lal, Taylor Wieczerak, Pralhad Burli
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Bioenergy has been globally recognized as one of the sustainable alternatives to fossil fuels. An assured supply of biomass feedstocks is a crucial bottleneck for the bioenergy industry emanating from uncertainties in land-use changes and future prices. Analytical approaches deriving from geographical information systems (GIS)-based analysis, mathematical modeling, optimization analyses, and empirical techniques have been widely used to evaluate the potential for bioenergy feedstock. In this study, we propose a three-phase methodology integrating fuzzy logic, network optimization, and ecosystem services assessment to estimate potential bioenergy supply. The fuzzy logic analysis uses multiple spatial criteria to identify suitable biomass cultivating regions. …
School Gardens As A Tool To Improve Student Health Outcomes And Increase Parent Engagement In The Clark County School District, Sabina Malik
School Gardens As A Tool To Improve Student Health Outcomes And Increase Parent Engagement In The Clark County School District, Sabina Malik
UNLV Theses, Dissertations, Professional Papers, and Capstones
Background-School Gardens (SG) have been used in student programming to help achieve many goals that include increasing academic achievement, improving nutrition knowledge, attitudes, and behaviors, increasing physical activity rates, instilling eco-consciousness, and increasing student and community engagement. To date, garden programs have predominantly been evaluated by case control studies examining pilot or informal short term implementation without consideration of garden program longevity. The purpose of this study was to evaluate the impact of SGs on student knowledge, attitudes, and behaviors related to nutrition and physical activity, examine student connection to the garden, and to identify stakeholder perceptions of best practices …
Climate Toolkit: A Resource Manual For Science And Action - Version 2.0, Frank Granshaw
Climate Toolkit: A Resource Manual For Science And Action - Version 2.0, Frank Granshaw
PDXOpen: Open Educational Resources
The Climate Toolkit is a resource manual designed to help the reader navigate the complex and perplexing issue of climate change by providing tools and strategies to explore the underlying science. As such it contains a collection of activities that make use of readily available on-line resources developed by research groups and public agencies. These include web-based climate models, climate data archives, interactive atlases, policy papers, and “solution” catalogs. Unlike a standard textbook, it is designed to help readers do their own climate research and devise their own perspective rather than providing them with a script to assimilate and repeat. …
Projected Surface Water For Fruit And Vegetable Irrigation Under A Changing Climate In The Us, Marty Matlock, Greg Thoma, Kieu Ngoc Le, Eric Cummings, Zach Morgan, Andrew Shaw
Projected Surface Water For Fruit And Vegetable Irrigation Under A Changing Climate In The Us, Marty Matlock, Greg Thoma, Kieu Ngoc Le, Eric Cummings, Zach Morgan, Andrew Shaw
Water Systems
Increasing greenhouse gas concentrations in the atmosphere, resulting in climate impacts, are raising concerns over the hydrologic cycle and its effects upon agricultural productivity. If rainfall patterns change, meeting an increased demand for fruits and vegetables will pose a challenge for domestic production regions in the United States (U.S.). Information on potential water supply scarcity in the current production regions provides decision makers with critical information for risk mitigation for future production. We used a hydrologic balance-based model of historic and future water availability to evaluate risk of available irrigation water to support major fruit and vegetable production the US. …
Storm Surges In The Bohai Sea: The Role Of Waves And Tides, Yuanyi Li, Huan Feng, Guillaume Vigouroux, Dekui Yuan, Guangyu Zhang, Xiaodi Ma, Kun Lei
Storm Surges In The Bohai Sea: The Role Of Waves And Tides, Yuanyi Li, Huan Feng, Guillaume Vigouroux, Dekui Yuan, Guangyu Zhang, Xiaodi Ma, Kun Lei
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
A storm surge is a complex phenomenon in which waves, tide and current interact. Even though wind is the predominant force driving the surge, waves and tidal phase are also important factors that influence the mass and momentum transport during the surge. Devastating storm surges often occur in the Bohai Sea, a semi-enclosed shallow sea in North China, due to extreme storms. However, the effects of waves on storm surges in the Bohai Sea have not been quantified and the mechanisms responsible for the higher surges that affect part of the Bohai Sea have not been thoroughly studied. In this …
La Habana: A History Of Society, Livelihood, Movement, And Land Use On The Iquitos-Nauta Highway, Katie Brown
La Habana: A History Of Society, Livelihood, Movement, And Land Use On The Iquitos-Nauta Highway, Katie Brown
Undergraduate Honors Theses
With increasing infrastructural projects and land titling in the Peruvian Amazon, many changes are occurring within small roadside communities. In this case study, we investigate how these changes impact livelihoods, land use, travel patterns, and social relations within the broader concepts of development, privatization of land, and commodification of nature. Specifically we focus on the caserío La Habana situated on the Iquitos-Nauta highway in the Loreto region of Peru. Semi-formal interviews and ethnographic methods were conducted to gather information on social organization, history of the community, land use practices, migration patterns, opinions on the road, and livelihood strategies. After data …
A Comparison Of Fuel Reduction Methods For Wildfire Risk Management And Climate Change Resiliency In Mixed Conifer Forests In The Sierra Nevada, Heather Navle
Master's Projects and Capstones
Wildfires in the mixed conifer forests of California’s Sierra Nevada have been a common and natural disturbance for thousands of years, historically occurring every 3 to 30 years. The flora and fauna of the mixed conifer forest have evolved to depend on low to moderate severity wildfires for reproduction, foraging, and habitat. However, the Sierra Nevada has experienced dramatic environmental changes over the past ~150 years as a result of three main factors: wildfire suppression, climate change, and habitat loss. Because of the threat wildfires pose to human lives, property and timber harvest, they have been suppressed to an extent …
The Research And Analysis Of Potential Gray Wolf (Canis Lupus) Habitats And Gray Wolf Management In The U.S., Youhan Mei
The Research And Analysis Of Potential Gray Wolf (Canis Lupus) Habitats And Gray Wolf Management In The U.S., Youhan Mei
Department of Environmental Studies: Undergraduate Student Theses
The Gray Wolf (Canis lupus) is a keystone species that have significant impacts on the ecosystem where they belong. They used to have a wide range of habitat across the whole of North America. In 1960, the wolves were treated as threats to the safety of humans and livestock. They were wiped out by the government of the day and only had few populations left in Minnesota and Michigan. Today, there are identified in the “Red List) of International Union for Conservation of Nature as endangered species all around the U.S. This shows the urgent need for conservation, …
The Belknap Campus And Metro Louisville Urban Heat Island Effect: Air And Ground Surface Temperature Analysis, Kenyetta Johnson
The Belknap Campus And Metro Louisville Urban Heat Island Effect: Air And Ground Surface Temperature Analysis, Kenyetta Johnson
Undergraduate Arts and Research Showcase
Numerous studies show that urban morphologies and land covers generate excess heat emissions and retain heat relative to surrounding rural areas, known as the Urban Heat Island (UHI) effect. Urban fabrics paved by concretes and asphalts absorbs solar radiation during solar peak then radiates heat after sundown. This study investigates temperature distribution data related to the UHI effect on the Belknap campus at the University of Louisville, which represents a small aerial sample of the Louisville metropolitan UHI effect. The objective of this study is to measure the reflectivity of ground surfaces and air temperatures on the Belknap campus during …
Perspectives Of Global Warming, Diomaris Padilla Dr.
Perspectives Of Global Warming, Diomaris Padilla Dr.
Open Educational Resources
This course is designed to foster an interest in global environmental issues by informing the student of both the anthropogenic and natural causes for climate change. While focusing on the scientific aspects of climate change, a broader study will include issues pertaining to global policy and economics in order to engage the student in public policy debates.
Dual-Axis Solar Tracker, Bryan Kennedy
Dual-Axis Solar Tracker, Bryan Kennedy
All Undergraduate Projects
Renewable energies, and fuels that are not fossil fuel-based, are one of the prolific topics of debate in modern society. With climate change now becoming a primary focus for scientists and innovators of today, one of the areas for the largest amount of potential and growth is that of the capturing and utilization of Solar Energy. This method involves using a mechanical system to track the progression of the sun as it traverses the sky throughout the day. A dual-axis solar tracker such as the one designed and built for this project, can follow the sun both azimuthally and in …
Remediation Strategies To Reduce Heavy Metal Uptake In Lettuce Grown In Contaminated Urban Soil, Ryley Thomas
Remediation Strategies To Reduce Heavy Metal Uptake In Lettuce Grown In Contaminated Urban Soil, Ryley Thomas
Department of Environmental Studies: Undergraduate Student Theses
Urban soils are increasingly used to produce food for local consumption, which requires at the same time management strategies that prevent the plant uptake of potentially present contaminants. This study was conducted to test different soil amendments for their ability to retain lead (Pb) and arsenic (As) within the soil matrix. The analyzed soil was taken from a potential community garden lot near a railroad in Lincoln, NE where elevated concentrations in Pb and As had been detected. Ponderosa pine biochar and spent coffee grounds were used as soil additives because of their documented chemical reactivity towards soil cations or …
Abatement Of Per- And Polyfluoroalkyl Substances With Electrochemical Oxidation, Elise Webb
Abatement Of Per- And Polyfluoroalkyl Substances With Electrochemical Oxidation, Elise Webb
Department of Environmental Studies: Undergraduate Student Theses
Throughout the United States, there is a growing concern for contamination of groundwater with harmful per- and polyfluoroalkyl substances (PFAS). These forever chemicals have no natural degradation pathways and the science community has not had any significant breakthroughs to remediate contaminated sites. Electrochemical oxidation using a boron-doped diamond (BDD) electrode shows excellent potential for becoming an effective therapy for such PFAS contaminated sites. The objective of this research is to provide proof-of-concept that electrochemical oxidation can degrade PFAS, ensure analysis is accurate, and controls of experimental design are optimal. Electrochemical oxidation degraded 10 mg/L perfluorooctanoic acid (PFOA) under a series …
The Role Of University Of Nebraska–Lincoln’S Biodigester On Sustainable Food Waste Reduction Within Selleck Dining Center, Jennifer Gilbert
The Role Of University Of Nebraska–Lincoln’S Biodigester On Sustainable Food Waste Reduction Within Selleck Dining Center, Jennifer Gilbert
Department of Environmental Studies: Undergraduate Student Theses
The University of Nebraska-Lincoln took a major step toward sustainability this past fall when Dining Services installed their first ever biodigester on November 8, 2019 within Selleck Dining Center. The impact this biodigester has had, thus far, is observable in the form of quantitative data collected in the amount of food waste digested by this technology. This study focuses on analyzing collected data from the LFC Cloud database, while also searching for trends and patterns that could further suggest substantial impact and efficiency of the biodigester on food waste reduction and sustainability initiatives within UNL Dining Services. Data Tables and …
Effect Of Urban Green Space On Urban Populations., Jack Mensinger
Effect Of Urban Green Space On Urban Populations., Jack Mensinger
Department of Environmental Studies: Undergraduate Student Theses
As the world's population continues to urbanize, population density increases and people endure the ever-increasing speed of the urban environment. The need to focus on mental and physical health becomes ever more critical as daily routines may not fulfill urban residents' basic needs. The bulk of work studying the relationship between green space, mental, and physical wellness, have had a narrow scope in their assessment of the benefits of green space. Previous studies focused either on the human interaction or the spaces utilities as a corridor and a habitat for flora and fauna. We utilized a systematic literature review to …
Diatom Morphology In Light Of A Changing Climate: A Focus On Aulacoseira Crenulate, Brighid Welchans
Diatom Morphology In Light Of A Changing Climate: A Focus On Aulacoseira Crenulate, Brighid Welchans
Department of Environmental Studies: Undergraduate Student Theses
Fossilized diatoms are arguably the most vital proxy record utilized in paleolimnology. Diatoms are unicellular microalgae that are the basis of countless food webs, are invaluable bioindicators, and generate nearly a quarter of global net primary productivity. Diatoms are affected by a variety of environmental factors but there is relatively little research on how environmental conditions impact diatom valve morphology, and in particular whether there is a correlation between incoming light and diatom pore morphology. This report focuses on the Amazon lowland lake Garzacocha, and analyzes the relationship between light levels and the corresponding size of Aulacoseira crenulata pores. We …