The pulp and paper industry, which manufactures everything from tissue paper to cardboard, also generates a significant yet often overlooked byproduct—a complex polymer called lignin. Around 100 million tons of lignin are produced each year. Despite being the largest natural source of aromatic ...

Source: [Phys.org](https://phys.org/news/2026-07-industry-toughest-lignin-byproducts-feedstock.html)

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