The companies Kalle and ÖKO-TEC are introducing a new oil binder made of regenerative raw materials: FLUISORB. FLUISORB is a blended product of cotton and regenerated cellulose, the latter from chemical pulp (i.e., natural wood fibres of beech, fir, eucalyptus or pine). The manufacturing process of regenerated cellulose has a much smaller CO2 footprint on the earth’s atmosphere and greenhouse effect than synthetic fibres manufactured based on petroleum or natural gas. The way a natural sponge functions provided the model for the development of FLUISORB adding the advantage of unlimited reproducibility.