Fast fashion relies heavily on synthetic fibers that are made from oil and gas. Some designers are working to cut those products out completely and instead use biomaterials. (AP Video: Mary Conlon)

A designer dressed Chappell Roan with seaweed. But don’t expect to find the approach in stores - yet

Fast fashion relies heavily on synthetic fibers that are made from oil and gas. Some designers are working to cut those products out completely and instead use biomaterials. (AP Video: Mary Conlon)