Modeling Circular Urban Metabolism in Santiago de Chile: Waste Tire Management

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dc.contributor.author Dragone, Bianca
dc.contributor.author Mitchell, Leigh
dc.contributor.author Pfleiderer, Emily
dc.contributor.advisor Miller, Shelie
dc.date.accessioned 2020-10-15T18:39:15Z
dc.date.available NO_RESTRICTION en_US
dc.date.available 2020-10-15T18:39:15Z
dc.date.issued 2020
dc.date.submitted 2020-08
dc.identifier.uri http://hdl.handle.net/2027.42/163335
dc.description.abstract Cities account for over 70% of greenhouse gas emissions and consume over two-thirds of the world’s energy. With the continued rise of urbanization, 68% by 2050 as projected by the UN, cities must be redesigned to ensure emissions, and the associated negative impacts of climate change, do not also increase proportionately. One framework through which a city’s sustainability can be analyzed is through the lens of urban metabolism; the inflows, use, and outflows of a city’s resources are viewed as analogous to the functions and processes of an organism. To truly become sustainable, city metabolisms must become “circular,” with high quality resources being recirculated and reused throughout the system, thus diminishing the rate of resource exploitation. Through better understanding of a city’s urban metabolism, governments can implement policies targeting the points of the system with the biggest impact and increase their city’s environmental resilience. Our research focus is on Santiago de Chile, Region Metropolitana, and future management of waste tires. Santiago, as a densely populated city experiencing economic growth paired with rising inequality and environmental sustainability challenges, is an ideal testing ground for innovative environmental policies that could be applied elsewhere in urban Latin America. This material flow is particularly topical as it is one of six products covered by the new Ley de Responsibilidad Extendida del Productor (REP), an extended producer liability law that shifts responsibility of a products’ end-of-life phase from the consumer to the producer. REP is a critical area of interest for the Chilean Ministry of the Environment as well as our client, the EARTH Institute at Universidad Adolfo Ibáñez. We conduct a Material Flow and Impact Analysis of future tire streams in Santiago. Using this analysis, we compare scenarios for managing end-of-life tires (ELTs) to understand which tire circularity strategies will have the greatest positive environmental, social, and economic impact. We find that promoting ELT management strategies that focus on energyrecovery will best promote environmental sustainability and human health while minimizing consumption of water and fossil fuels. There is a tradeoff as energy recovery is more expensive and has a minimal impact on material circularity compared to a baseline scenario and we discuss a potential impact score through the lens of Chilean environmental policy. We further recommend that both an Advanced Disposal Fee (ADF) and a Deposit Refund System (DRS) are considered as potential economic policy instruments to facilitate ELT collection. en_US
dc.language.iso en_US en_US
dc.subject tires en_US
dc.subject Chile en_US
dc.subject circular economy en_US
dc.title Modeling Circular Urban Metabolism in Santiago de Chile: Waste Tire Management en_US
dc.type Project en_US
dc.description.thesisdegreename Master of Science en_US
dc.description.thesisdegreediscipline School for Environment and Sustainability en_US
dc.description.thesisdegreegrantor University of Michigan en_US
dc.contributor.committeemember NA, NA
dc.identifier.uniqname bdragone en_US
dc.identifier.uniqname lrmitch en_US
dc.identifier.uniqname enpfle en_US
dc.description.bitstreamurl http://deepblue.lib.umich.edu/bitstream/null/1/Modeling Circular Urban Metabolism in Santiago de Chile_356.pdf
dc.owningcollname Dissertations and Theses (Ph.D. and Master's)
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