The Rhenish mining district is undergoing a profound transformation process, which challenges today's socio-economic structures, spatial structures and the self-image of the region. The working term 'tomorrow' captures a spatial and temporal dimension of this future task: The area of the Rhenish mining district covers about 5,000 km2, which corresponds to about 2 million acres. The numerical numbering of the area size is intended to illustrate the finite and irreproducible nature of the resource soil, which demands conscious and responsible handling. Tomorrow as a temporal dimension underlines the immediacy and directness of the transformation process in the mining area.

The conceptual symbiosis of space and time in 'Tomorrow' is exemplary for a future-oriented, processual and sustainable development of the Rhenish mining district.