This document discusses cooperation between the City of Turku and Siemens to develop smart, sustainable solutions for cities. It notes that 75% of energy is consumed in cities and over half of the world's population lives in cities. Siemens has expertise in areas like sustainable cities research, green infrastructure solutions, and technology for rail systems and smart grids. The City of Turku and Siemens are establishing a strategic partnership to develop Turku as a showcase for sustainability through projects, workshops, and studies on topics like light rail and a new sustainable city district called Skanssi. The collaboration aims to identify solutions and an implementation roadmap to make Turku a best-practice example for sustainable development.