Seaweed has been around for a long time, billions of years at the last estimate, and humans have been making use of it for a few thousand years, usually as food, medicine or dyes. More recently though, we’ve been exploring a wider range of seaweed types and discovering just what they can do. Researchers have leaned on the past uses of seaweed to innovate new fabrics and dyes, as well as pushing new boundaries with algae, converting it into fancy fabrics and alternatives to single-use plastics. Learn about five burgeoning uses of the plant and how it's set to replace plastic.