4.5 Recycling glass saves resources

Glass itself, as a material, is considered environmentally friendly since it is recyclable and can be reused. When recycled, it saves raw materials and energy. Each ton of cullet used to manufacture glass saves ca. 1.2 tons of virgin raw materials (sand, limestone, and soda ash). The substitution of each 10 per cent of virgin raw materials in the furnace saves about 2 per cent of the energy required for melting.

Source: Fédération Européenne de Verre d'Emballage

The US EPA estimates that recycling of one glass container saves enough energy to light a 100 Watt bulb for 4 hours.

Recycling also diverts materials from landfill and significantly reduces the amount of waste from mining that would otherwise be generated.