Glasswork has good sustainability credentials. It's main component is silica one of the most common materials, does not degrade in light, lasts for thousands of years and can be endlessly recycled. Artworks can some cases repaired (please feel free to contact me if this is the case). I use highly insulated computer controlled kilns for my work using green energy providers. My suppliers are UK based, the wood I use is from a local Joiner and my frames are made in the UK from sustainable sources. I also recycle and use recyclable packaging.