Matching Items (30)
Description
Over the past decades, rare earth elements (REE) have become a crucial backbone to the functioning of modern technology infrastructure, particularly due to their inclusion within NdFeB magnets which power technologies such as hard disk drives and wind turbines. However, mining and extraction of REEs pose significant environmental and human health risks, thus signaling a need for more sustainable methods of sourcing. This research aims to compare the impact and effectiveness of three recycling processes for decommissioned NdFeB magnets sourced from end-of-life wind turbines, as well as consider strategies for developing these processes on an industrial scale. A material flow analysis (MFA) has been conducted to determine comparable input and output factors for two types of laboratory-scale recycling methods, molten salt electrolysis and hydrometallurgy, and one industrial-scale method, magnet-to-magnet. Following this, an impact analysis of potential industrial level magnet recycling operations for molten salt electrolysis and hydrometallurgy was conducted. The results show that molten salt electrolysis had the highest levels of impact for global warming, ozone depletion, and energy usage of the three methods when scaled on an industrial level. Hydrometallurgy had relatively low energy usage and emissions impacts but required large amounts of water and produced high levels of wastewater. The magnet-to-magnet process showed promising impact results in comparison with the alternate two methods, but further development needs to be done to circumvent the continued use of virgin REE in the final production steps for novel magnets. Overall, it is recommended that locations of recycling operations should be pursued for each process relative to energy and water usage needs, as well as transportation distance from wind farms.
ContributorsSavel, Cassandra Deanne (Author) / Agusdinata, Datu Buyung (Thesis director) / Iloeje, Nwike (Committee member) / School of Sustainability (Contributor) / Barrett, The Honors College (Contributor)
Created2020-12
Description
The goal of this paper is to serve as a case-study of the youth climate movement at the local level, focusing on how young activists and organizers in Arizona perceive their pathways, motivators, and barriers in the climate movement. In order to answer my research question of ‘What are the different experiences of Arizona youth activists’ involvement in climate action?’, I conducted a case-study of 15 interviews with participants between the ages of 18-25 that varied in racial and gender identity, as well as the duration of their involvement. While this paper does not present a comprehensive view of all experiences of youth climate activists and organizers in Arizona, these interviews highlight the upbringing, background, and the degree of involvement of young climate organizers and activists, ultimately revealing their similar yet unique experiences in the climate movement. Even though further research, discussion, and opportunities are needed to better understand the youth climate movement as well as other emerging social movements, these participants represent the heart of the movement here in Arizona. This case-study sheds light on lived-experiences and urges readers to consider young climate activists and organizers’ varying perspectives on how to support, amplify, and implement their requests for a livable, intersectional, diverse, and inclusive future.
ContributorsNguyen, Minh-Tam (Author) / Fischer, Daniel (Thesis director) / Klinsky, Sonja (Committee member) / School of Sustainability (Contributor, Contributor, Contributor) / School of International Letters and Cultures (Contributor) / School of Social Transformation (Contributor) / Barrett, The Honors College (Contributor)
Created2020-12
Description
This thesis conducted an evaluation of the performance and return on investment of a 2 x 6m, simple design greenhouse, as a climate control technology. Specifically, differences in internal microclimate conditions between a greenhouse treatment plot, and sun and shaded control plots were assessed and related to observed differences in crop yields across these plots. Growing conditions and productivity of two crops, tomato and swiss chard, which were grown over summer and winter growing seasons, respectively, were compared. It was found that the greenhouse was associated with improved growth conditions (as measured by the R-Index) for both crops but resulted in higher productivity only for tomatoes. Return on investment and food security impacts from the scaling of greenhouse agriculture were also explored.
ContributorsKline, Jarod Neale (Author) / Aggarwal, Rimjhim (Thesis director) / Agusdinata, Datu Buyung (Committee member) / Vanos, Jennifer K. (Committee member) / School of Sustainability (Contributor) / Economics Program in CLAS (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
As an aspiring educator pursuing a degree in education, hours have been spent observing, visiting, and working in classrooms of elementary schools. In this time, it has become apparent that social studies and science are not a priority within classrooms or even schools as a whole. This dilemma caused extreme disconnect, amongst students, throughout the common and crucial science and social studies standards that should be taught and implemented daily by law. These content experiences, especially in science, expose students to skill sets and themes that are highly desired throughout higher education, the career world, and for the well-being and longevity of planet Earth.
As a solution to this problem, I created an after school program to provide staff and myself additional time to implement such curriculum and expand the depth of knowledge that students are exposed to. This positive additional time to the educational day, was able to come to life through a grant that I wrote and received to transport students from their elementary school to a local greenhouse. At the greenhouse, I was able to create a series of lessons focused on the resources needed for gardens and plant production. Through these lessons, I utilized inquiry based lesson plans to provide me with a template that was unique from typical lessons taught at school. Through these hands on experiences in our club, students were able to work at their own pace and learn about resources, soil, water, pollinators, and parts of a flower.
As a solution to this problem, I created an after school program to provide staff and myself additional time to implement such curriculum and expand the depth of knowledge that students are exposed to. This positive additional time to the educational day, was able to come to life through a grant that I wrote and received to transport students from their elementary school to a local greenhouse. At the greenhouse, I was able to create a series of lessons focused on the resources needed for gardens and plant production. Through these lessons, I utilized inquiry based lesson plans to provide me with a template that was unique from typical lessons taught at school. Through these hands on experiences in our club, students were able to work at their own pace and learn about resources, soil, water, pollinators, and parts of a flower.
ContributorsRafidi, Kaitlynn (Author) / Merritt, Eileen (Thesis director) / Walters, Molina (Committee member) / Division of Teacher Preparation (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
As a cause of negative economic, societal, and environmental effects, food waste is increasingly being seen as a sustainability issue that needs to be addressed. Reduction of food waste is preferred to recycling because it reduces the financial burden and technological innovations needed to address the issue. While there are many different approaches to reduce food waste, this paper investigates dynamic social norms as an avenue for reducing food waste. Recent studies showcased the effectiveness of using dynamic social norms to reduce meat consumption and the use of to-go cups. However, there appears to be a gap in research that investigates the impact of dynamic social norms in U.S. university community dining settings. This study piloted the use of dynamic social norms to intervene in post-consumer food waste behaviors at Arizona State University. Specifically, this study compared food waste amounts in a location with and without an intervention tool as well as conducted interviews to monitor any self-reported behavior change. Results show that dynamic social norms can promote behavior change in terms of food waste when compared to a control location without the intervention. Further, this study advocates for monitoring food habits through both quantitative and qualitative analysis in order to identify potential behavior changes that could not be captured to the same extent by a mono-methodological approach.
ContributorsCampbell, Hailey Paige (Author) / Fischer, Daniel (Thesis director) / Auustin-Behravesh, Shirley-Ann (Committee member) / School of Sustainability (Contributor, Contributor) / Watts College of Public Service & Community Solut (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
Over the past decade, corporate social responsibilities and sustainability has become more of a trending topic; not only amongst citizens, but within many private firms as well. Aligning operations with sustainable practices within a for-profit firm or organization has evolved into a critical focus area in order for a company to be more sustainable.
Having sustainable practices in place can be significant, but it is also important to consider employees and their perspectives, as they are the ones who implement them. The majority of the employees that work within an organization, not those that create these policies, are the ones who’s perspectives should be more strongly considered. In order to effectively implement these practices, firms can educate their employees about the initiatives or newly implemented changes to current practices. Sustainability education for employees, covering company-specific policies, improves the likelihood of participation within initiatives. Increased employee education has the potential to raise the probability that companies will see the benefits that come with enacting sustainable practices.
Having sustainable practices in place can be significant, but it is also important to consider employees and their perspectives, as they are the ones who implement them. The majority of the employees that work within an organization, not those that create these policies, are the ones who’s perspectives should be more strongly considered. In order to effectively implement these practices, firms can educate their employees about the initiatives or newly implemented changes to current practices. Sustainability education for employees, covering company-specific policies, improves the likelihood of participation within initiatives. Increased employee education has the potential to raise the probability that companies will see the benefits that come with enacting sustainable practices.
ContributorsCourrier, Leandra Denaye (Co-author) / Campbell, Hannah (Co-author) / Fischer, Daniel (Thesis director) / Molly, Cashion (Committee member) / Department of Supply Chain Management (Contributor) / Dean, W.P. Carey School of Business (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
A unit plan was created to address a need to educate and create awareness of local foods to elementary aged students. After researching local foods and problem based learning, information was consolidated and developed into a comprehensive unit plan that serves as a teacher resource guide. This unit plan was created to provide information, tools, and resources for upper elementary students from 4th to 6th grade to learn about local foods in hopes of impacting student health and knowledge as well as building a foundation for their future eating habits. Another goal of this unit plan focuses on promoting students' awareness of local foods within their community and the benefits of buying locally in general. This unit contains seven lessons aligned to the current Arizona state standards that have creative and engaging activities ranging from socratic seminars, creating a brochure, and performing skits. Each lesson contains student objectives, clearly laid out lesson plans, and the majority of supplemental materials included such as videos, handouts, Google slides, and photographs. These lessons were planned with the intention of being able to be realistically taught in a 45-60 minute class period and laid out in a way that would be easy for teachers to read and then teach without much preparation. Simple and effective assessments are integrated throughout the unit and provide a means of tracking student progress and understanding of concepts. This unit plan is designed to engage students and plant ideas in their heads about where their food comes from and how learning about local foods can be beneficial for their community and their health.
ContributorsNoe, Karlee Elizabeth (Author) / Merritt, Eileen (Thesis director) / Watanabe, Lynne (Committee member) / Division of Teacher Preparation (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Circles of Sustainability is a self-evaluation tool designed to build educator capacity in K-12 schools seeking sustainability solutions. Based on the Sustainable Schools Challenge Handbook from Memphis, Tennessee, Circles of Sustainability considers environmental impact and efficiency, a healthy and safe school environment, sustainability and environmental education, and engagement and empowerment as four key pillars of whole-school sustainability. Each pillar is composed of elements and rubric items, which are reviewed, totaled, and colored in on the front page of the tool to help educators visualize and evaluate the current state of sustainability at their school. Since its first iteration completed in May 2017, the tool has been used by 300 educators throughout the United States during ASU's Sustainability Teachers' Academy (STA) workshops. Circles of Sustainability is completed as part of an activity called "Evaluating Your Community," where educators complete the tool and then brainstorm sustainability projects and solutions for their school and community. This paper is a review and discussion of the research, informal feedback and formal feedback used to create the second iteration of the tool. A second iteration of the tool was created to make the tool more user-friendly and ensure each pillar, element, and rubric item are based in research. The informal feedback was conducted during STA workshops in Tempe, Arizona; Abingdon, Virginia; Princeton, New Jersey; Chicago, Illinois; Los Angeles, California; Tucson, Arizona; and Charlotte, North Carolina. The formal feedback was conducted using a survey distributed to teachers who participated in the Tucson and Charlotte workshops. Overall, educators have responded positively to the tool, and the second iteration will continue to be used in future STA workshops throughout the United States.
ContributorsColbert, Julia (Author) / Schoon, Michael (Thesis director) / Merritt, Eileen (Committee member) / School of Sustainability (Contributor) / Division of Teacher Preparation (Contributor) / School of Geographical Sciences and Urban Planning (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
This creative project created and implemented a seven-day STEM curriculum that ultimately encouraged engagement in STEM subjects in students ages 5 through 11. The activities were incorporated into Arizona State University's Kids' Camp over the summer of 2017, every Tuesday afternoon from 4 to 6 p.m. with each activity running for roughly 40 minutes. The lesson plans were created to cover a myriad of scientific topics to account for varied student interest. The topics covered were plant biology, aerodynamics, zoology, geology, chemistry, physics, and astronomy. Each lesson was scaffolded to match the learning needs of the three age groups (5-6 year olds, 7-8 year olds, 9-11 year olds) and to encourage engagement. "Engagement" was measured by pre- and post-activity surveys approved by IRB. The surveys were in the form of statements where the children would totally agree, agree, be undecided, disagree, or totally disagree with it. To more accurately test engagement, the smiley face Likert scale was incorporated with the answer choices. After implementation of the intervention, two-tailed paired t-tests showed that student engagement significantly increased for the two lesson plans of Aerodynamics and Chemistry.
ContributorsHunt, Allison Rene (Co-author) / Belko, Sara (Co-author) / Merritt, Eileen (Thesis director) / Ankeny, Casey (Committee member) / Division of Teacher Preparation (Contributor) / Harrington Bioengineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2017-12
Description
The consumption of food, energy, and water (FEW) resources in U.S. households is very carbon-intensive. However, these negative climate change impacts are often invisible due to insufficient awareness and knowledge. Serious games (SGs) can potentially address this issue through an experiential and rigorous approach to simulate household actions and impacts in a playful but realistic setting. This dissertation focuses on: (a) the design and testing of an SG called HomeRUN (Role-play for Understanding Nexus); (b) the effectiveness of gameplay in advancing player knowledge about the upfront costs, financial returns, and greenhouse gas (GHG) emissions of various household decisions; and (c) the effectiveness of intervention messages in increasing FEW conservation to reduce household GHG emissions. The results of gameplay sessions played by 150 university students show that HomeRUN is fun to play, creates a flow experience, and results in experiential learning. The majority of players agreed that the game experience will continue over time to influence their future consumption behaviors to conserve FEW resources. Female players tended to gain more knowledge about financial aspects of interventions, whereas male players were more likely to increase their understandings of GHG emissions and resource consumption after playing HomeRUN. Social comparison intervention messages about energy and food consumption led to the highest reductions in household carbon emissions. The messages associated with each FEW resource tended to be most likely to lead to FEW conservation actions with the game that most closely corresponded to the particular FEW resource addressed in the message. This dissertation advances understandings about the design and use of SGs to foster learning and promote sustainable household FEW consumption.
ContributorsHanif, Muhammad Adnan (Author) / Agusdinata, Datu Buyung (Thesis advisor) / Halvorsen, Kathleen (Committee member) / Janssen, Marco (Committee member) / Arizona State University (Publisher)
Created2021