The document is a slide presentation on circular economy. It introduces concepts like global challenges, the shift from linear to circular models, and new business models in the value chain enabled by technologies. It discusses opportunities for servitization through product-as-a-service models and sharing platforms. It also outlines challenges to overcome, like validating problems and solutions, activating value chains, and overcoming resistance. Finally, it provides nine tips to empower ecosystems through inspiration, awareness, understanding user needs, experimentation, and coalition building.