Recent advances in nanotechnology have significantly contributed to the development of novel materials with enhanced properties for environmental remediation. This chapter explores the role of nanopolymers in addressing environmental challenges, particularly in the remediation of pollutants in air, water, and soil. Nanopolymers, owing to their unique characteristics such as high surface area, tunable properties, and biodegradability, have emerged as effective agents in pollutant adsorption, catalytic degradation, and the removal of toxic substances. The chapter delves into the synthesis methods, functionalization strategies, and applications of nanopolymer-based materials, highlighting their potential to improve existing remediation technologies. Furthermore, the chapter examines the environmental impact, sustainability, and future prospects of nanopolymers, offering a comprehensive overview of their potential to revolutionize environmental cleanup efforts. The advancements in this field provide promising avenues for overcoming the limitations of conventional remediation methods, thereby paving the way for more efficient, eco-friendly solutions for a sustainable future.