Seaweed farming is emerging as one of the most sustainable and climate-friendly aquaculture systems. Unlike traditional agriculture, seaweed cultivation requires no freshwater, fertilizers, or arable land, making it an environmentally efficient food production method. Seaweeds absorb carbon dioxide through photosynthesis and can contribute to carbon sequestration, helping mitigate climate change. Additionally, seaweed farms improve water quality by absorbing excess nutrients and supporting marine biodiversity. This paper examines the role of seaweed aquaculture in climate change mitigation, its ecological and economic benefits, cultivation methods, challenges, and future prospects. The study highlights seaweed farming as a promising nature-based solution for sustainable aquaculture and environmental protection.