Water pollution worsens with microplastics from synthetic fibres like nylon and polyester and improper disposal of used cooking oil. AlgioYarn solves this by using sodium alginate from seaweed, used cooking oil, glycerin, and water to create a strong, flexible yarn through calcium chloride treatment. It can be crocheted or knitted wet or dry, is biodegradable, and leaves no harmful residue. By reducing microplastics and reusing waste oil, AlgioYarn protects marine life and improves water quality