According to the Glass Packaging Institute, Alexandria, Va., energy costs drop about 2 to 3% for every 10% cullet used compared to making new glass from only raw materials. Cullet (broken or refuse ...

Imagine going for a picnic at the beach and taking some beers. Idyllic, you might think, unless you either (a) have to carry the heavy load of bottles or (b) drop the bottles and leave bits of glass ...