Today, in an era of consumerism and cheap, throwaway products, we are producing more waste than ever. In response, many are calling for radical changes in our habits and lifestyles; companies and municipalities are embarking on ambitious plans to become “zero waste.” But is a world without waste truly achievable? The essays in this volume of RCC Perspectives discuss zero waste as a vision, as a historical concept, and as an international practice. Going beyond the motto of “reduce, reuse, recycle,” they reflect on the feasibility of creating closed material cycles and explore real-world examples of challenges and successes on the way to zero waste.