Polyurethane, the foam used in insulation, car seats, and other cushioning, not only poses health risks but is also one of the least recycled materials. Researchers at Clemson University have created a plant-based alternative that eliminates the health risks and can be easily recycled. "We created a durable bio-based foam using lignin, a byproduct of the paper-pulping industry, and a vegetable oil-based curing agent that introduces flexibility and toughness to the final material."

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