Bringing about sustainable consumption relies on significantly reducing and eventually eliminating waste. Waste refers to anything that is discarded through the production cycle or after consumption. If not reused, recycled or upcycled, waste (clothing, food, electronic, plastic packaging etc.) accumulates in landfills and natural spaces. As waste decomposes over time – and for some products that could be several lifetimes – it releases chemicals and other compounds into the air, soil and water bodies. These pose a health risk – to people and to ecosystems. The circular economy approach focuses on reusing and recycling resources to make the most of them throughout their lifecycle. Many Green Action Week campaigns focused on reducing and recycling waste and boosting a circular economy approach.