How is sustainability different from circularity?

The UN has defined sustainability as: “meeting the needs of the present without compromising the ability of future generations to meet their own needs.” Circularity or circular economy is an alternative to a traditional linear economy (make, use and dispose) in which resources are kept in use for as long as possible, the maximum value extracted from them whilst in use, and then products and materials recovered and regenerated at the end of each service life. Circularity relates to products, consumption, and waste, whereas sustainability encompasses more data points such as emissions, social impact, and transparent governance. To summarise, circularity is a practice that will lead to sustainability.