A circular economy is an economic system designed to be regenerative and sustainable, where resources are kept in use for as long as possible, and waste is minimized. In a circular economy, the traditional "take-make-dispose" model of production, where something is made, then used, then trashed, is replaced with a closed-loop system that aims to keep materials, products, and components in use for as long as possible.

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This idea is achieved by designing products and services that are durable, repairable, and recyclable, and by using renewable resources and energy wherever possible. In addition, a circular economy emphasizes the importance of reducing waste and pollution through methods such as reusing and recycling materials, and recovering valuable resources from waste streams.

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Overall, the goal of a circular economy is to create a more sustainable and resilient economic system that is better for the environment, the economy, and society as a whole.