Like many cities, Atlanta, Georgia faces several significant socio-environmental challenges, including sprawl, environmental degradation, and a dearth of public transportation and park space. In an attempt to address some of these issues, city officials have begun to execute one of the nations largest and most expensive urban greening projects: The Atlanta BeltLine. The project will create a 33-mile network of multi-use trails around the city of Atlanta, and will establish new green spaces, increase neighborhood connectivity, and address stormwater runoff, among other goals. While the BeltLines social and environmental benefits have received ample praise, the project has also been critiqued for falling short on several targets and for causing new problems including gentrification and displacement. What, then, are we to make of urban greening projects that address some socio-ecological problems while generating others? To develop a more nuanced understanding of the socio-ecological gains and losses attributed to urban greening, how they are produced, and how they are experienced, this dissertation explores three facets of urban greening. First, this dissertation investigates the role of urban professionals tasked with urban greening, often called technocrats in academic literature, by developing an understanding of their subjectivities. That is, how their identities, experiences, and emotions influence their priorities for their work, and the ways that the planning process does or does not allow them to translate their priorities into project outcomes. Second, this dissertation explores the wants and needs of diverse residents living in BeltLine neighborhoods, and the benefits and new problems they experience since the project has been implemented. Resident needs and experiences are compared to promised outcomes, underscoring how the project is and is not addressing the needs of local residents. Finally, this dissertation observes project outcomes from two divergent frameworks, environmental management and urban political ecology. These frameworks value different outcomes and together highlight the tradeoffs inherent to urban greening, elucidating how outcomes produce gains for some actors and losses for others. The insight gained from this research is useful to create planning, engagement, and policy recommendations to guide the outcomes of urban planning in more intentional and equitable ways.