Made from vegetable fibres called cellulose, paper as we know it today was first created in China more than two thousand years ago. Since the advent of the printing press in the 15th century , its use has spread across all continents to the extent that, currently, it is hard to imagine the world without this versatile material. More than 400 million tonnes of paper and cardboard are produced worldwide every year, with more than half coming from recovered sources. Approximately 50% of…