In terms of specific actions, we believe it is vital to first dispel the misconception that the final disposal policy serves to promote nuclear power generation. Even if all the existing nuclear power plants in Japan were to be decommissioned with immediate effect, approximately 25,000 units of radioactive waste would still remain. This is an issue that requires consideration over a time frame of tens of thousands of years, until the radioactive waste decays to the radiation level of natural uranium. On the other hand, our current nuclear power generation technology has undergone drastic changes in just a few decades, and it is clearly not an energy framework that mankind will continue to rely on for a period of time as long as the nuclear waste problem.
Therefore, in this proposal, we recommended abolishing the concept of “genshiryoku hatsuden kankyo seibi” (literally, “nuclear power generation environment development”) from Japan’s radioactive waste disposal policy and changing the logo and the Japanese name of the Nuclear Waste Management Organization of Japan (NUMO), “Genshiryoku Hatsuden Kankyo Seibi Kiko,” to “Hoshaseihaikibutsu Anzen Kanri Kiko” (literally, “Radioactive Waste Safety Management Organization”). To begin with, there has always been a curious discrepancy between the Japanese name of the organization and its current English name, Nuclear Waste Management Organization of Japan (NUMO), which is closer to our proposed name when back-translated into Japanese. At the same time, we also proposed changing the “genshiryoku kankyo seibi” (literally, “nuclear power environment development”) part of the Japanese name of the Radioactive Waste Management Funding and Research Center (RWMC), “Genshiryoku Kankyo Seibi Sokushin/Shikin Kanri Senta,” by renaming it as “Hoshaseihaikibutsu Anzen Kanri Senta” (literally, “Radioactive Waste Safety Management Center”). This would allow people to start thinking about Japan’s radioactive waste disposal policy separately from its nuclear power policy.

It is also very important to share our reflections on the Fukushima nuclear disaster in 2011 in an honest way. This accident debunked the myth of the safety of nuclear power. Nevertheless, a large amount of used nuclear fuel is still stored at nuclear power plants in coastal areas. As long as this remains the case, there is no guarantee that another accident will not occur. The first step that should be taken is to acknowledge past failures and current risks and show the resolve to avoid another tragic accident. Demonstrating the dangers of the current long-term storage of used nuclear fuel in nuclear power plants and quantitatively visualizing the significantly greater safety of used fuel following geological disposal than at present should be effective in promoting a greater understanding of final disposal. 
After separating final disposal policy from nuclear power policy, we included in our proposal details on strengthening the development and coordination of renewable energy policy as well as on transforming the participating area into a leader in the development of renewable energy. 
Creating a society built on sustainable energy is a shared goal even among opponents of nuclear power who are currently opposed to the final disposal policy. Our proposal to leverage the development of the town as a leader in the promotion of renewable energy to attract industry to the final disposal site is not only effective as a regional industrial policy but is also expected to promote a greater understanding of the policy.

How we should design a facility that will leave a mark on the history of mankind is also an important consideration. The current plan is to build a large embankment that measures 1 square kilometer next to the final disposal site. We proposed a design concept that involves designing a 1 square-kilometer mega solar power plant to occupy this land and creating the world’s largest Geiger counter, “HYPER GEIGER,” which can beautifully visualize the wind and radiation levels in the surrounding area, making it a sacred site that continues to raise awareness of the importance of safety. 

In terms of communication, we emphasized the need to convey the intricacy of the policy by moving away from caricatures and rough sketches and toward more realistic CG illustrations and descriptions in order to accurately convey the safety of geological disposal.
No one knows what will actually happen tens of thousands of years from now. We should probably assume that our current language will no longer be understood. Therefore, we stressed the need to take the future seriously over a time frame on the scale of tens of thousands of years and to raise awareness of our commitment to fulfilling our responsibility to future generations by communicating with humans and other forms of intelligent life tens of thousands of years from now, as well as by envisioning various potential environmental changes.