The transition into circular economics means the transition into a system where we consume dramatically less natural resources, since the products we use are circulated in one of four ways; reused, reset, upgraded or recycled. The value of products is kept a lot longer than today, and companies can make a profit by having their customers subscribe to product function rather than buying new products. RISE research into circular economics includes the use of secondary resources such as plastics, food waste, building and demolition waste, biomass and metals.