The concept of 'environmental gentrification' has emerged as a critical lens through which to examine the unintended consequences of urban sustainability initiatives. While green infrastructure projects, such as parks and clean-energy retrofits, aim to improve urban living conditions, they often lead to increased property values and subsequent displacement of long-term, lower-income residents. This phenomenon challenges the assumption that environmental improvements are universally beneficial. Researchers argue that without inclusive planning and affordable housing policies, these projects can exacerbate socio-economic segregation, undermining the very social fabric they purport to strengthen. Thus, sustainable urban development must be critically assessed not only for its ecological impact but also for its equity outcomes.