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Articles 1411 - 1440 of 24959
Full-Text Articles in Entire DC Network
Re: Comment Letter For The 2022 Butte Priority Soils Operable Unit (Bpsou) Groundwater Compliance Evaluation (Dated March 10, 2025), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Comment Letter For The 2023 Butte Priority Soils Operable Unit (Bpsou) Groundwater Compliance Evaluation (Dated March 10, 2025), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: Acknowledgement Letter For The Final Blacktail Creek Groundwater Hydraulic Control System Pre-Design Investigation Evaluation Report (Dated February 27, 2025), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Amplifying Climate Action: San Diego’S Climate Action Plan (Cap) Dashboard, San Diego Regional Climate Collaborative, Courtney Chinn, Marius Van Dongen
Amplifying Climate Action: San Diego’S Climate Action Plan (Cap) Dashboard, San Diego Regional Climate Collaborative, Courtney Chinn, Marius Van Dongen
San Diego Regional Climate Collaborative
The City of San Diego boasts a strong tourism and recreation industry, partly attributed to the City’s temperate climate. In recent years, extreme weather events tied to climate change have led to an even stronger focus on mitigation and resilience. In 2015, the City adopted a Climate Action Plan (CAP), which was most recently updated in 2022. The CAP established the goal for the community to reach net zero emissions by 2035. In the fall of 2024, to boost the efforts of the CAP, the City of San Diego published their online Climate Action Plan platform, the CAP Dashboard. The …
Understanding California’S 2025 Energy Code, San Diego Regional Climate Collaborative, Caroline Stillitano
Understanding California’S 2025 Energy Code, San Diego Regional Climate Collaborative, Caroline Stillitano
San Diego Regional Climate Collaborative
California’s 2025 Energy Code is set to take effect in January 2026. Triannual updates to the Energy Code advance the state’s clean energy and climate resilience goals. For 2025, key updates include expanded heat pump requirements, electric-ready requirements, enhanced ventilation standards, and updated solar and battery storage regulations. These updates aim to reduce greenhouse gas emissions, lower energy costs, and improve public health in California. This case study outlines the main components of the 2025 updates to the California Energy Code (Title 24, Part 6), highlights expected impacts, and identifies financial incentives and programs available to support compliance and facilitate …
Re: Comment Letter For The Butte Priority Soils Operable Unit (Bpsou) Draft Final Residential Metals Abatement Program (Rmap) Quality Assurance Project Plan (Qapp) (Non-Residential Parcels And Residential Daycares) (Dated February 26, 2025), Molly Roby
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Responsibility To The Land: Perspectives Of Farmers On Climate Change And Land Transition, Meira A. Smit
Responsibility To The Land: Perspectives Of Farmers On Climate Change And Land Transition, Meira A. Smit
Environmental Studies Honors Projects
Agriculture is a defining aspect of Minnesota and Wisconsin’s culture and identity, characterized by family farms, rolling hills blanketed with crops, and cows. Interspersed are small scale diversified farms and a growing number of emerging and young farmers. Another cultural mainstay is talking about weather, a ubiquitous conversation of Midwesterners. As weather events such as erratic rainfall, drought, and pest pressure become both more common and volatile, and long-term weather patterns shift from “normal”, it is important to ask farmers what they think about it. Adapting to changes and planning for resilience are what farmers have always done, yet increasing …
Recent U.S. Government Policy Literature On Critical And Strategic Minerals, Bert Chapman
Recent U.S. Government Policy Literature On Critical And Strategic Minerals, Bert Chapman
Libraries Faculty and Staff Scholarship and Research
Critical and strategic minerals have become increasingly important in U.S. government civilian and military policymaking in recent years. This is demonstrated by the heavy use of such minerals in many critical civilian and military infrastructures. This work will discuss how this subject has been addressed in laws, presidential documents, and works by government agencies along with congressional oversight committees and support agencies. It will stress how the United States is heavily dependent on strategic minerals from adversarial foreign countries such as China and will examine U.S. efforts to increase its ability to produce such materials in the United States by …
Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Butte Treatment Lagoons (Btl) Groundwater Treatment System Quarterly Operation And Maintenance Report – Quarter 4 2024 (Dated March 28, 2025), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Spatio-Temporal Analysis Of Human-Carnivore Conflict In The Tarangire-Manyara Ecosystem, Tanzania, Sophie Carpenter
Spatio-Temporal Analysis Of Human-Carnivore Conflict In The Tarangire-Manyara Ecosystem, Tanzania, Sophie Carpenter
Environmental Studies Honors Projects
Livestock depredation by large carnivores significantly threatens human livelihoods across the globe, with severe ecological and socioeconomic implications. Economic costs of livestock depredation impact the tolerance for carnivores among communities living alongside wildlife, often straining human-carnivore coexistence. Using geographic and temporal attributes from livestock depredation records (n=406) collected between 2004 and 2023, we identified spatiotemporal patterns of depredation by African lions, leopards, and spotted hyenas in the Tarangire-Manyara Ecosystem in northern Tanzania. We found significant interactive relationships between the number of attacks reported and the season, time, and site of attack; with these interactions differing between the carnivores. To better …
Assessing The Effect Of Covid-19 On Air Quality For Five Texas Metro Areas Using Daily Air Quality Index Values, Rahul Sahajpal
Assessing The Effect Of Covid-19 On Air Quality For Five Texas Metro Areas Using Daily Air Quality Index Values, Rahul Sahajpal
Theses and Dissertations
Air pollution is one of the biggest health hazards known to humans. The quality of the air that we breath is mainly determined by the level of six major air pollutants, Carbon Monoxide (CO), Nitrogen dioxide (NO2), Particulate Matter 10 (PM 10), Particulate Matter 2.5 (PM 2.5), Sulfur dioxide (SO2) and Ozone (O3). The main source of these air pollutants are fossil fuels (Oil, Coal and Natural gas). Their levels in the air are reported using an Air Quality Index (AQI). Higher AQI values indicate bad air quality and vice versa. In this study …
Community Stakeholders’ Perceptions On Growing A Nonprofit Donor Base Through In-Kind Donations, Brittany A. Heine
Community Stakeholders’ Perceptions On Growing A Nonprofit Donor Base Through In-Kind Donations, Brittany A. Heine
Walden Dissertations and Doctoral Studies
In Northern Virginia alone, over 90,000 people are food insecure. The USDA has reported strong correlations between food insecurity and negative health outcomes. The purpose of this qualitative case study was to determine community stakeholders’ perceptions on engaging in strategic partnerships with Organization X using in-kind donations as a strategy to decrease the organization’s expenditures and grow its donor base. 14 community stakeholders were chosen through purposive sampling and participated in semi structured interviews. Using the conceptual framework of the unified theory of revenue generation for nonprofits, interview questions were developed to determine the variables that impact a stakeholder’s decision …
Large Mammal Herbivores As Gardeners Of Tropical Forest Ecosystems, Kathryn Garner
Large Mammal Herbivores As Gardeners Of Tropical Forest Ecosystems, Kathryn Garner
Student Scholarship
Ecosystems worldwide are experiencing changes in structure and function as populations of fauna decline and experience local extinctions (Torres-Romero et al. 2020). Due primarily to their body size, large mammal herbivores (LMHs) are disproportionately prone to extinction from human activities such as agricultural expansion, deforestation, and anthropogenic climate change (Pringle et al. 2023). Additionally, as the number of domesticated LMHs (i.e. cattle, pigs, etc.) continue to increase in both density and distribution, their wild counterparts are continually displaced, resulting in increased competition for resources and an increased risk of disease transmission between domestic to wild species (Pringle et al. 2023; …
Examining Sustainable And Regenerative Viticultural Practices In The Rheinhessen Wine Region Of Germany, Claire Hoffmann
Examining Sustainable And Regenerative Viticultural Practices In The Rheinhessen Wine Region Of Germany, Claire Hoffmann
CISLA Senior Integrative Projects
No abstract provided.
Assessing Biochar And Industrial Hemp To Remediate Heavy-Metal-Contaminated Soil, Sophie W. Sward
Assessing Biochar And Industrial Hemp To Remediate Heavy-Metal-Contaminated Soil, Sophie W. Sward
Crop, Soil and Environmental Sciences Undergraduate Honors Theses
Environmental degradation is becoming increasingly prevalent as global industrialization runs rampant. Anthropogenic activity, such as mining, deposits inorganic pollutants into the environment, leading to potential soil and water contamination. Traditional, engineering-based remediation and containment procedures alter soil structure and aggregate stability and affect the biological function of the area impacted by mining activities. Phytoremediation is a more energy-efficient, and therefore cost-effective, method of environmental restoration. Phytoremediation, on its own, works in soils that are less contaminated so that the selected plant can actually grow. Soil amendments, such as biochar, can be added to improve remediation potential in more contaminated soils. …
Mapping Disparities: Spatial And Socioeconomic Analysis Of Medical Apartheid Regions In Spartanburg County, Anthony G. Tarulli
Mapping Disparities: Spatial And Socioeconomic Analysis Of Medical Apartheid Regions In Spartanburg County, Anthony G. Tarulli
Student Scholarship
Medical Apartheid Regions (MARs) are a widely underesearched topic that are heavily prominent in the southeastern United States, specifically rural areas (Brînzac et al. 2023). Due to the historical implementation of redlining (Egede et al., 2023) and structural racism (Miller & Vasan, 2021) in the development of the southern United States, a reclassification of medical deserts needed to occur to truly assess the implications of a lack of healthcare acces.
Toxicity And Biodegradability Of Novel Boronium Vs Conventional Ammonium Based Anti Microbial Compounds In Wastewater Treatment Systems, Noor Shalan
Poster Presentations
Quaternary ammonium compounds (QACs) are highly effective as disinfectants, herbicides, and pesticides; thus, overuse causes elevated levels of residual toxicity in domestic and industrial wastewater. QACs can be toxic to essential bacteria breaking down pollutants in wastewater treatment plants (WWTPs) and can remain untreated in effluent, harming the environment, and contributing to antibiotic resistance, posing risks to human health. Novel boronium-based antimicrobial compounds have demonstrated efficacy in eliminating bacteria, fungi, and viruses. If the boronium compounds exhibit lower residual toxicity, they could offer a promising alternative to QACs. Because these compounds are still in development, their potential toxicity to the …
Binary Solid/Liquid Equilibrium Of Mixtures Of Thermally Robust Salts And Molecular Compounds For Use As Heat Transfer Fluids, Jared Ridge Mathews
Binary Solid/Liquid Equilibrium Of Mixtures Of Thermally Robust Salts And Molecular Compounds For Use As Heat Transfer Fluids, Jared Ridge Mathews
Poster Presentations
Fossil fuels, contributors to climate change that may bear catastrophic consequences, power the entire world. The human species is almost entirely dependent on fossil fuels for energy, but other sources of renewable and environmentally friendly energy must be developed. Concentrated solar power (CSP) is a promising source of renewable energy with hampered potential—better heat transfer fluids (HTFs) are needed for it to be economically feasible. Currently, the HTFs in industrial use are predominantly either synthetic oils or nitrate-based molten salts. Synthetic oils are only stable up to 400 °C, and molten salts often have high melting temperatures, making them prone …
The Effect Corrugated Fiberboard Has On The Environment In Terms Of Compostability, Plant Growth, And Per-And-Poly-Fluoroalkyl Substance Contamination, Meredith Clem
All Theses
The “Lasagna Method” is a popular and sustainably perceived technique that many gardeners use as a free and convenient method to dispose of cardboard (corrugated fiberboard) packaging while also improving their gardens. Many claim that this creates benefits for your garden, but many others have proposed their concerns, including the safety of the practice. This research analyzes the compostability of cardboard, the effect it has on plant growth and development of lettuce, and its contamination of a prominent chemical that has known negative effects on human health. The results of these studies showed that cardboard, as it is currently produced …
Bioavailability Of Lead In Terre Haute Soils, Terre Haute, Indiana, Zach Kemp
Bioavailability Of Lead In Terre Haute Soils, Terre Haute, Indiana, Zach Kemp
All-Inclusive List of Electronic Theses and Dissertations
Contamination of soils from heavy metal pollution has been a global concern for decades. Heavy metals are released into the soil from natural and anthropogenic releases. The largest producers of heavy metal pollution include mining, industrial production, and the combustion of fossil fuels. Vigo County formed in 1818, and Terre Haute was established in 1832. After the discovery of coal in Clay County in 1867, Terre Haute became the third largest coal producer and fifth largest iron manufacturer in the state during that time. Lead, in particular, is a heavy metal of concern because of the harmful effects to humans …
Understanding University-Level Food Recovery Programs’ Approaches To Minimizing Food Waste While Combating Food Insecurity In The United States, Ella F. Flesher
Understanding University-Level Food Recovery Programs’ Approaches To Minimizing Food Waste While Combating Food Insecurity In The United States, Ella F. Flesher
Crop, Soil and Environmental Sciences Undergraduate Honors Theses
Food is wasted every day at each level of the food system from production to consumption. This surplus has significant negative impacts on the environment after food is sent to the landfill and allowed to rot. However, some surplus food can be repurposed and diverted from the landfill. This study served as an initial investigation to explore multiple food waste diversion programs and analyze their structure, best practices, and methods to divert leftover food. This study specifically aimed to compare and contrast food recovery programs by interviewing participants from three food recovery programs from different university institutions. With the key …
Monitoring The Qosh Tepa Canal Project: A Geospatial Timeline Of Taliban Water Diversion, Enerel L. Crosslin
Monitoring The Qosh Tepa Canal Project: A Geospatial Timeline Of Taliban Water Diversion, Enerel L. Crosslin
Honors Thesis
The World Food Program states that “acute malnutrition in Afghanistan is above emergency thresholds in 25 out of 34 provinces and is expected to worsen”. Aiming to support agriculture, the Taliban began to build the 285 km “Qosh Tepa Canal” to divert 17% of the Amu Darya, which supports the livelihoods of millions of people in downstream Uzbekistan and Turkmenistan. The World Bank estimated that roughly 2.4 million Central Asians could become climate refugees by 2050. Our objectives are to create a timeline of satellite imagery of the canal’s construction. Our research questions are (1) Can we characterize water diversion …
Biodegradable Active Packaging: Exploring The Antimicrobial Efficacy And Compostability Of Chitosan-Based Films, Rachel Mchugh
Biodegradable Active Packaging: Exploring The Antimicrobial Efficacy And Compostability Of Chitosan-Based Films, Rachel Mchugh
All Theses
The overarching purpose of this experiment is to create an active packaging component that has both antimicrobial and biodegradable properties specifically designed for poultry food products. For the scope of this study, the packaging component created would theoretically be used in conjunction with another material, such as a poultry tray which are commonly used for fresh poultry products. Based on the scope and purpose of this experiment, biopolymer films and coatings were considered after the initial literature review. Due to the goals of the packaging component, chitosan, a polysaccharide shown to have antimicrobial properties and an inherent ability to biodegrade, …
Electrochemically Precipitated Struvite Effects On Extractable Soil Nutrients, Owen Collins
Electrochemically Precipitated Struvite Effects On Extractable Soil Nutrients, Owen Collins
Crop, Soil and Environmental Sciences Undergraduate Honors Theses
Struvite recovery from wastewater streams may provide an alternative to traditional fertilizer-phosphorus (P) sources, while also providing the benefit of reducing nitrogen and P loads in wastewater effluent and reducing effects of eutrophication in surface waters. Limited research has been conducted to assess the effects of struvite fertilization on concentrations of soil micronutrients and potassium (K) compared to other traditional fertilizer-P sources in historically agricultural soils. The objective of this study was to assess the effects of fertilizer-P source (i.e., synthetically produced electrochemically precipitated struvite [ECST], chemically precipitated struvite [CPST], monoammonium phosphate [MAP], diammonium phosphate [DAP], triple superphosphate [TSP], rock …
Thermal Biology Of The Eastern Treehole Mosquito Aedes Triseriatus (Diptera: Culcidae) And Other Vertivorous Dipterans, Kelly I. Zimmerman
Thermal Biology Of The Eastern Treehole Mosquito Aedes Triseriatus (Diptera: Culcidae) And Other Vertivorous Dipterans, Kelly I. Zimmerman
Theses, Dissertations and Culminating Projects
Temperature plays a critical role in mosquito life cycle, behavior, and other ecological interactions. My dissertation analyzed how temperature affects egg hatch rates of the eastern treehole mosquito (Aedes triseriatus) and how amino acid substitutions in TRPA1 correlated with host finding through thermotaxis and the convergent evolution of vertebrate feeding/utilizing in Dipterans. As ectotherms, embryonic development and egg hatch rates are directly influenced by the water temperature mosquito eggs are oviposited into. Ae. triseriatus eggs do not hatch all at once, to avoid potentially high larval mortality rates due to their non-static oviposition sites. They engage in staggered egg hatching, …
Life Cycle Analysis Of Cosmetic Products -- Assessing Environmental Sustainability And Potential Impacts, Karina Magro Machado
Life Cycle Analysis Of Cosmetic Products -- Assessing Environmental Sustainability And Potential Impacts, Karina Magro Machado
Theses, Dissertations and Culminating Projects
The cosmetic industry has a significant environmental footprint due to its reliance on water, energy, petrochemical-derived ingredients, and plastic-based packaging. This study performs a cradle-to-grave Life Cycle Analysis (LCA) to evaluate the environmental impacts of three cosmetic products: CeraVe Daily Moisturizing Lotion, bareMinerals Gen Nude Powder Blush, and Gillette Foamy Regular Shave Cream. The analysis was conducted using OpenLCA software and free databases, modeling each product across raw materials, packaging, manufacturing, transportation, use and end-of-life phases. The results showed that the shave cream had the highest environmental burden to three out of the four categories, especially in consumption and carbon …
Don't Let Lead Lead On Environmental Justice: A Simulative Approach To Lead Remediation In The Big Data Era, Charles C. Knoble Ii
Don't Let Lead Lead On Environmental Justice: A Simulative Approach To Lead Remediation In The Big Data Era, Charles C. Knoble Ii
Theses, Dissertations and Culminating Projects
Environmental justice, as both a movement and a theoretical construct, continues to evolve in response to shifting societal, environmental, and technological conditions. This dissertation investigates the integration of big data, such as social media, remote sensing imagery, and internet search frequencies, into the identification, analysis, and remediation of environmental injustices. Framing environmental justice through the lenses of distributive and data justice, the project explores both the promises and pitfalls of using emergent data sources to enhance the spatial and temporal precision of environmental equity investigations. Through a combination of systematic literature review, spatial analysis, system dynamics simulation, and policy evaluation, …
How The Ramapough Turtle Clan Tribe Sustained Their Culture Through Ford's Environmental Exploitation, Tori Sutera
How The Ramapough Turtle Clan Tribe Sustained Their Culture Through Ford's Environmental Exploitation, Tori Sutera
Theses, Dissertations and Culminating Projects
The Ramapough Turtle Clan Tribe is an Indigenous community composed of individuals residing mainly in Ringwood, New Jersey and a few surrounding boroughs. This land holds irreplaceable significance among the community, who, after facing colonial diaspora, have ultimately resided in Ringwood. However, due to the vast effects of the Ringwood Superfund site, this community has dealt with the loss of their people and their culture. Beginning in 1967, Ford Motor Company – partial owners of the site at that time – initiated the dumping of heavily toxic materials into Cannon and Peters Mines. This dumping continued until 1971, and the …
Tracking Fall Migration With The Motus Wildlife Tracking System: The Fate Of Window-Struck And Captive-Raised Passerines, Cailin O'Connor
Tracking Fall Migration With The Motus Wildlife Tracking System: The Fate Of Window-Struck And Captive-Raised Passerines, Cailin O'Connor
Theses, Dissertations and Culminating Projects
Many species of North American passerines migrate along the Atlantic flyway in the fall to reach winter habitats in the southeastern United States, the Caribbean, and Central and South America. Birds face many perils along their journeys including window strikes, which kill over one billion birds per year in the United States alone. Some birds survive the impact and may continue their migration. These birds may suffer delayed mortality or show aberrant migration due to injuries. This research seeks to understand if window-struck birds that initially survive bird-building collisions survive into the future and, if so, if they migrate effectively. …
Mitigating Nitrogen Losses: The Role Of Enhanced Efficiency Fertilizers In Sustainable Corn Production, Dipesh Giri
Mitigating Nitrogen Losses: The Role Of Enhanced Efficiency Fertilizers In Sustainable Corn Production, Dipesh Giri
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Nitrogen (N) is essential for crop production, but its inefficient use often leads to environmental losses through nitrate leaching, ammonia volatilization, and nitrous oxide (N₂O) emissions. Enhanced efficiency fertilizers (EEFs), such as nitrification inhibitors (NIs) and urease inhibitors (UIs), have been developed to minimize these losses and improve nitrogen use efficiency (NUE). This research combined a multi-year field experiment and a controlled laboratory study to evaluate how dual-inhibitor fertilizers compare to conventional urea and single-inhibitor formulations in Nebraska cropping systems. The main objective was to understand how nitrogen inhibitors influence N availability, crop performance, and nitrogen losses across different environmental …