Our laboratory is surveying and researching the processes or effectiveness of sustainable town development through the rejuvenation of farming and mountainous regions, which are hit by the declining population and industries, and the economic revitalization in regions with the use of environmental resources. To this end, we have taken practical approaches. For example, we are working on policy proposals on the preservation of natural environments, use of natural energies, reduction of garbage, revitalization of local shopping districts and improvement of transportation networks.