This dissertation analyzes the politics of garbage in Oaxaca, Mexico. In particular, it explores the tactics used by a marginalized colonia near the dump to affect waste management and local development. This colonia provokes garbage crises by blocking the metropolitan areas access to its dump. As a result, garbage builds up in the city and public officials are forced to negotiate with colonia residents. I argue that two prior processes are essential to the success of this strategy. First, the mid-sized city in southern Mexico implemented many new waste management practices during the latter half of the 20th century and the first few years of the 21st in order to produce an image of a clean and modern city for residents and tourists. While the city tried to modernize by increasing the level of sanitation, a concomitant increase in consumerism meant that it was impossible for this clean and modern city to be produced on the ground. Nevertheless, these contradictory processes made cleanliness the marker of urban modernity. Therefore, garbage in the city can undermine the legitimacy of modern urban institutions, as it does in the case of the garbage crises. Second, a process of modern citizen-formation was underway wherein an association with garbage identified one as outsider. In this way, garbage crises are struggles over citizenship and belonging.

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The transformation of cities is a challenge of global significance that will depend on the capacity to re-imagine the potential of cities, and thus needs more than standard technocratic urban planning approaches. Deep engagement with the arts provides one avenue for recasting the future of cities. This thesis explores the question of how ‘critical urban art interventions’ develop alternative ways of knowing urban nature, and the opportunities and limitations of using art to reimagine the future of cities. By drawing on urban political ecology and cultural geography, the thesis documents and explores the aims and tactics used in five urban art interventions to reimagine sites of urban nature in Stockholm. Qualitative interviews and participant observation were carried to explore these questions. Findings suggest that tactics used in urban art interventions promote embodied ways of knowing, and simultaneously interacting with the physical and socio- historical constructions of sites of urban natures.

Urban agriculture and the local food movement have taken main stage both in academic discourse and public and political media. Socio-environmental downfalls of our current industrial food systems have been highlighted, compelling the public and political spheres to engage in activities that support the integration of local, urban food-growing systems. This thesis aims to contribute to that integration by examining possibilities for urban agriculture within the city limits of Atlanta. Through geospatial analysis methods and consultation of city and county property records, possible future sites were ascertained using socioeconomic and ecological factors, with 21 key neighborhoods found to have the greatest potential and need to transform existing land use for agricultural purposes. This research contributes to the larger goal of systemic integration of urban and local food systems into our current economic, political and social landscape, and the study is framed using social theoretical insights from urban geography. While further examination of these urban agricultural food systems is vital, this thesis contributes to broader discussions about urban environmental sustainability and supports the roots of the local food movement by identifying possible sites for food cultivation and food markets.

Cities in the global South are confronting unprecedented challenges to urban sustainability and equitable development, particularly in the realm of water provision. Nearly 1.5 billion people worldwide suffer from a lack of safe access to drinking water and sanitation -an increasing proportion of whom reside in cities. Meanwhile, in the gaps of the grid, a diversity of water harvesting and reuse techniques, infrastructures, and institutional arrangements has emerged to provision poor households. Despite the burgeoning presence of the informal water sector, little is known about its institutional character, environmental impact, or relationship with state provision and private supply. Drawing on qualitative and quantitative data collected during nearly 13 months of fieldwork in Tijuana, Mexico, this dissertation queries how informal water use is managed, whether informal water use constitutes an alternative economy and sustainable environmental practice, and to what degree informal water use redefines urban space and alternative development possibilities. Findings reveal that: 1) despite historical efforts in Mexico to federalize and centralize the control of water resources, state action opens 'gaps' in the hydrosocial cycle, and informal institutions manage these 'extralegal' spaces; 2) informal water use is widespread across socioeconomic levels in Tijuana, predominantly managed by household-based institutions, and conserves a surprising degree of municipal water; and 3) the spatiality of contemporary water infrastructures and economies is highly diverse-ranging from bottled water markets to non-capitalist, self-provisioning greywater reuse-and is in fact constitutive of 'splintered urbanism' and alternative modes of development.

A central challenge of the twenty-first century is to transition to a low-carbon energy system to reduce the risks of climate change. For Pima County, Arizona, where electricity accounts for the majority of greenhouse gas emissions, this requires rapid deployment of grid-tied renewable energy resources. In light of this challenge, photovoltaic solar has emerged as an important solution, providing the top source of new US electric generating capacity installed in 2016. However, there is still no consensus about the optimal scale for solar (centralized power plants, or small, decentralized systems) and the socio-economic implications for low income households. This thesis explores the implications of rooftop solar for energy justice through empirical research about a southern Arizona electric utility rate case. Utilities argue that existing rate structures shift costs from solar owners to lower-income ratepayers, while critics say the utility's proposed rate changes are unjust and that rooftop solar benefits all ratepayers. Drawing on my empirical data and an urban political ecology (UPE) approach, I analyze competing narratives that speak to three types of justice: distributive, procedural, and recognition. While dominant justice claims revolve around the distribution of costs through rates, competing narratives emphasize procedural and recognition (in)justice. Focusing on political economy, power relations, and the materiality of the grid, I reframe the utility’s cost shift argument as a strategic narrative and explain why this justice claim is ultimately validated. I propose that UPE can further an energy justice analysis by understanding procedural and recognition injustice as systemic products of rate of return regulation and the material configuration of the electric grid.

The thesis traces the successive urban responses made by the Hong Kong government from 1997 to 2014, in an attempt to achieve “imagined immunity” for the city. The urban responses being analysed are efforts to regulate the ways in which “live poultry” (especially live chickens) is metabolized and circulating in the city. The efforts are made to re-order the human-birds-microbes relationships in Hong Kong - a process conceptualized as “re-urbanization of nature.” The consequence of these re-urbanization of nature processes, led to changes in the specific practice of consuming “live poultry” in the city. Four periods of re-urbanization of nature are identified in the analysis, and it is argued that in each wave of restructuring there were markedly different frames constructed to generate distinctive meanings of the “contagion condition,” imagined urban immunity, and practices of re-urbanization of nature. Their meanings and resultant practices were products of negotiations, within an entangled web of human and nonhuman features in particular periods. The context of these interventions and the biopolitical contestations are analyzed in the thesis. It is then argued that such contingencies and context-sensitive processes, call for further studies of post-epidemic urban changes. The thesis also explores the possibility of developing a theoretical framework of “urban biopolitical immunology” to accomplish the inquiry. By so doing, it seeks to contribute to studies of the politics of contemporary epidemics, and to research on the production of urban nature.

As we find ourselves in the midst of a planetary trend towards urbanisation, we must acknowledge that urban spaces are linked in a network of metabolic consumption and production that impact not only those recognised as ‘urban dwellers’, but are incorporated into a global structure. Ireland is no exception, with development centred around Dublin, a ‘primate city’ with a vastly larger population than others in the region. Dublin’s Inner City areas have in recent decades been marked by a series of large-scale interventions aimed at reconstituting a new vision of Ireland as a global, modern city home to a tech-savvy workforce. Yet as Dublin explores its post-recession identity as a hub for investment in tech and finance, its urban population continues to grow in ways that are seen to disenfranchise existing Inner City communities. This study explores the perceptions of residents of Inner City Dublin engaged in urban planning processes, in the hopes of making manifest the goals and desires driving participation through various channels, both formal and ‘radical’. A case is made for the city as a site of a post-political condition by questioning the role and efficacy of official consultatory channels, as well as in contrasting held imaginaries presented by interviewees and those presented by official planning documents. Attempts by Dublin City Council to market Dublin as a ‘creative’ city, intent on monetising aspects of cultural identity as a global competitor intent on drawing investment and foreign talent is considered representative of post-politics, contrasted by urban residents’ desires to safeguard the existence of vibrant communities within the Inner City who now risk exclusion.

Greenway trails, or linear community parks, are growing in popularity around the world and are increasingly prevalent in cities of all sizes in the United States. At their best, greenways can provide affordable transportation, access to jobs, safe recreation space, community building, biodiversity protection, stormwater drainage, and air and noise quality benefits. Yet, commonly, neoliberal governance and design of greenways leads to diminished social and environmental design in favor of economic development. Intentional design for social, environmental and economic stability is crucial for successful greenways, though they are often viewed as innately sustainable. Urban Political Ecology (UPE), Actor Network Theory (ANT), and Campbell's Sustainable Development are used together as lenses to better understand the greenway development process and its outcomes. This research is a case study of the Roanoke River Greenway (RRG) in Roanoke, Virginia which was conducted in attempt to discover who benefits from the greenway, in what ways, and by what means. Semi-structured interviews, participant observation, and mapping combined to answer research questions. Participants were eleven neighborhood residents, five greenway commissioners, and five city and regional leaders involved with the greenway. Interviews were transcribed, coded, and grouped into themes, along with map data and field notes. I combined these methods to draw conclusions that shed light on the complex system surrounding the RRG. Conclusions are (1) that residents who live near the greenway and want to use it for recreational purposes as well as the City of Roanoke and its elite class of businessowners and homeowning residents who live near the greenway benefit the most from the RRG benefit because the greenway is catered toward recreation and economic development, in form, function, and process, (2) that the system which enables these benefits and prioritizes their beneficiaries is the greenway's evolving planning process, a system both steeped in mindsets of traditional economic development and exclusive planning aesthetics and imbued with innovative approaches of connecting residents to the outdoor environment, and (3) that Roanoke's greenway movement is strong because of its popularity but is vulnerable, because there are no provisions to officially protect it for the future, in terms of maintenance, increased use, and public opinion. Implications for praxis are that communities with greenway trails should diversify the people and perspectives who have power in the planning practice, that environmental and social design should be addressed directly and consistently in greenway development and maintenance, and greater outreach efforts should be made to residents in order to make the greenways more accessible and welcoming to diverse users. Implications for research are for increased research conducted with low-income and minority residents and on microlevel social and economic impacts in neighborhoods. / Doctor of Philosophy / Greenway trails, or linear community parks, grow in popularity around the world and are increasingly prevalent in cities of all sizes in the United States. At their best, greenways can provide affordable transportation, access to jobs, safe recreation space, community building, biodiversity protection, stormwater drainage, and air and noise quality benefits. Yet, commonly, neoliberal governance and design of greenways leads to diminished social and environmental design in favor of economic development. Intentional design for social, environmental and economic stability is crucial for successful greenways, though they are often viewed as innately sustainable. Urban Political Ecology (UPE), Actor Network Theory (ANT), and Campbell's Sustainable Development are used together as lenses to better understand the greenway development process and its outcomes. This research is a case study of the Roanoke River Greenway (RRG) in Roanoke, Virginia which was conducted in attempt to discover who benefits from the greenway, in what ways, and by what means. Semi-structured interviews, participant observation, and mapping combined to answer research questions. Participants were eleven neighborhood residents, five greenway commissioners, and five city and regional leaders involved with the greenway. Interviews were transcribed, coded, and grouped into themes, along with map data and field notes. These combined to draw conclusions that shed light on the complex system surrounding the RRG. Conclusions are (1) that residents who live near the greenway and want to use it for recreational purposes as well as the City of Roanoke and its elite class of businessowners and homeowning residents who live near the greenway benefit the most from the RRG benefit because the greenway is catered toward recreation and economic development, in form, function, and process, (2) that the system which enables these benefits and prioritizes their beneficiaries is the greenway's evolving planning process, a system both steeped in mindsets of traditional economic development and exclusive planning aesthetics and imbued with innovative approaches of connecting residents to the outdoor environment, and (3) that Roanoke's greenway movement is strong because of its popularity but is vulnerable, because there are no provisions to officially protect it for the future, in terms of maintenance, increased use, and public opinion. Implications for praxis are that communities with greenway trails should diversify the people and perspectives who have power in the planning practice, that environmental and social design should be addressed directly and consistently in greenway development and maintenance, and greater outreach efforts should be made to residents in order to make the greenways more accessible and welcoming to diverse users. Implications for research are investigations into residents who do not use the greenway, for long-term and minority residents.

This exploratory research project explores the production and use, and subsequent closure and eviction of the community-designed and managed Old Tidemill Wildlife Garden in Deptford – a predominantly working-class area in south-east London. This community garden played a key role in the lives of many local residents and its closure and subsequent demolition to make way for a large housing project drew a significant backlash from local residents which included protests, law-suits, and the occupation of the garden itself. Why this small, half-acre community garden garnered such a notable response is the main focus of and motivation for this research project. Using a combined-methods approach consisting of semi-structured interviews and participant observation, this research investigates what it was about Old Tidemill Wildlife Garden which resulted in this backlash, and why the local council’s decision to close it drew such a militant revolt from local community members. Combining the empirical results of this research with a deep inquiry into the concepts of space and power within urban theory, this thesis seeks to understand the rights working-class communities have to contribute to the production of public green space, and how such community-led contribution can impact on the space produced, both inside and outside the context of Old Tidemill Wildlife Garden and its former users.