Although living in the most isolated chain of island in the world, does present it's own unique sustainability issues when it comes to recycling, here are some general facts about recycling glass:
Over a ton of resources are saved for every ton of glass recycled: 1,330 lbs. of sand, 433 lbs. of soda ash, 433 lbs. of limestone, and 151 lbs. of feldspar.
Recycling 1 ton of glass saves the equivalent in energy of 10 gallons of oil.
Glass never wears out -- it can be recycled forever!