Viscose (or rayon) has often been marketed as a more ecologically sustainable alternative to polyester because unlike polyester which is made from petrochemicals, viscose is made from cellulose. It is also praised by some fashion brands because it requires less water to produce compared with cotton. Viscose is found in a huge variety of clothes and is used by almost every major fashion brand to some extent. Although not inherently unsustainable, it is the production process of viscose that presents a very problematic story. Basically, wood pulp is extracted from wood, then turned into viscose staple fibre (VSF) and filament yarn through a highly chemical process using carbon disulphide. Viscose production faces a three pronged issue: the risk of deforestation of ancient forests, occupational hazards of factory workers who are exposed to highly dangerous toxins that have been linked to neurological damage, and heavy contamination that results from poor waste management of viscose factories, not only polluting nearby waters and air, but causing widespread illnesses to villagers in the vicinity of factories .