Odense Municipality has a vision of being Denmark’s greenest metropolis.Odense Municipality and Water Centre South have a common goal for the project to reduce energy consumption and thus reduce CO2 emissions. The foundation for energy savings is the decoupling of rainwater from the wastewater system. At the same time, the city’s recreational elements must be promoted. The project develops analyses and methods that together will result in sustainable climate adaptation. Finally, working procedures and forms of cooperation in planning must be optimised. Smart CityOdense Municipality will focus on Smart City development and wants Smart City to support the transition to big city. It is therefore obvious to also use a Smart City approach as one of several elements of climate adaptation. Climate-Tech-Lab is being formed to help develop smart solutions. A significant part of the project is about getting citizens and businesses to handle rainwater themselves and thereby contribute to energy savings. Therefore, communication is an important part of the project. The green transformation of Odense will thus be supported through dialogue-based citizen meetings and by the initiative: Imagine Climate Adapt Odense, which will be a beautiful visual 3d tool that shows the effect of climate adaptation in relation to rain. Here, citizens can see the green initiatives in future Odense visualised at street level. The project is being carried out in collaboration with Vandcenter Syd, University of Southern Denmark and Business Academy Lillebælt.