Surfing has a dirty secret: surfboard production techniques are often at odds with the sport’s eco-conscious image. Most modern surfboards are a sandwich-like construction: a polyurethane foam core – known as a blank – coated in a fibre-reinforced composite.

Regenerated fibres are man-made, or synthetic, fibres created from natural polymers. These polymers are broken down by chemical processes and then reformed into fibres that can be spun and woven to produce fabric.

A significant proportion of food waste is dairy. WRAP, a UK charity that helps individuals and organisations reduce waste, says that 20% of the estimated 1.