This paper provides an overview on societal challenges and opportunities associated with waste valorization strategies, contributing to SDG 12. Moving away from the linear economy model, waste becomes a resource rather than a burden for the society. Focusing on two specific waste streams – namely plastics and food supply chain wastes – it explores a circular economy model. Bearing in mind that waste is a resource, initiatives all over the world should not only target minimizing or totally stopping land-filling but also reducing existing land-fills through landfill mining. In accordance with SDG 17, Clark suggests a three-way partnership between industry, government and the public – where each actor plays a specific role in promoting new technologies, developing supportive regulations and embracing a new consumption attitude towards waste.