Paper Title
Recycling and Environmental Sustainability: The Decreasing Element Problem with a Focus on Rare Earth Elements

This paper elaborates on sustainable process and introduces Annual mean element locking (AMEL), a mathematical quantity to calculate the un sustainability of a given Raw materials value chain. The decreasing element problem is explained in view of the current glass recycling scenario. Biogeochemical cycles are elaborated and it is explained why they represent ideal raw material value chains. The Rare earth elements are introduced and the balance problem is explained. Various aspects of recycling of REE’s are explained and then barriers to circular economy are then mentioned. Keywords - Recycling, Sustainability, Rare Earth Element, Value Chain.