I thought this might have been an article on turning nuclear waste into glass (vitrification). Might be of interest to some people especially given current questions/challenges regarding reclassifying nuclear as "renewable":
Nuclear is “clean” energy in terms of generating minimal waste compared with natural gas, coal, hydro etc. It’s not technically renewable but it’s widely available enough to the point that it could power our civilization for a good long while. Enough time that fusion should become feasible which technically isn’t renewable either since there’s a finite amount of hydrogen in the world but should be enough to see us through building a Dyson sphere of some kind.