Eco-friendly production is our main principle
I'm not a chemist. And I cannot subscribe or deny the above facts. But glass cannot decompose. Glass consists of quartz glass, lime and soda. The only thing that can cause glass to decompose in the ground is strong chemical influences that do not occur in normal soil. Glass may sooner, under the influence of, for example, water, "grind" over time, but this is also a very long process, since glass is usually very smooth. How many thousands, or rather millions, of years could it take for glass to become sand again?