The growing issue of plastic waste poses a significant challenge to environmental sustainability, particularly in urban and aquatic ecosystems. This chapter examines practical strategies and technological innovations for managing plastic waste, starting with an overview of the problem and highlighting successful community-based initiatives. It evaluates sustainable disposal methods that minimize ecological impacts and discusses advancements in recycling technologies and solutions to control plastic pollution. Special attention is given to the effects of microplastics on marine ecosystems. The chapter concludes by emphasizing the need for integrated policy frameworks, technological progress, and multi-stakeholder collaboration to sustainably address plastic pollution.