This research aims to consider the status of local people’s awareness for re-introduction projects. There are five places where the re-introduction projects are ongoing in Japan. Comparative analysis of questionnaire surveys was conducted in this research. Followings were found through analysis. Each resident showed positive tendency towards the project. In particular, at Toyooka and Sado, it was clarified that many people had recognized Stork and Ibis as a ‘local symbol’. In Noda and Echizen where the new site of the project, people keep Stork good for the environment. Regarding to a main actor for the project, however, people addressed ‘Nobody’ or ‘City’, but not ‘Resident’ at several site. It is desired that local people’s recognition as a real and concrete ‘symbol’ should be expanded in future in line with the project.

The elements of regional revitalization through renewable energy were set as follows: autonomy of energy, networking, independence of the regional economy, energy risk management, climate change mitigation, security/safety in emergencies, citizens’ vitality. The questionnaire surveys in Japan and Korea were conducted to compare citizens’ consciousness of the expectation to regional revitalization through renewable. The results showed that the primary expectation in Japan was energy risk management especially by females, and the respect toward the nature had an effect on the high expectation. The primary expectations in Korea were the development of regional economy and science technology.

This study discusses the functions that intermediary organizations perform for community renewable energy programs, based on a case study of three organizations in Japan and other countries that are currently engaged in intermediate support activities. The intermediary organizations surveyed formulated and proposed specific plans, provided expertise to program implementation bodies and worked on their behalf, and held information exchange meetings and workshops. Based on the above findings, the study identified the following four functions in intermediary organization in community renewable energy programs: (1) research and proposal, (2) provision of advice and expertise, (3) networking and coordination, and (4) education.

In recent years, there has been a growing interest in the district heating systems that supply several buildings. However, our country has some declining district heating systems that constructed in the high-growth period. Therefore authors extract the issues for disseminate to the future from a case study of a district heating system for residential area of cold area in the public estates Kitahiroshima. As a result, I revealed three problems, that is the building is no connection obligations in the area, non-connection in public facilities, understanding of the district heat supply. In addition, a declining of a case land was also involved to a jump in heavy oil prices. It is also conceivable to use local production for fuels such as renewable energy in order to avoid these problems. As a result, it is also expected effect of local development.

Japan instituted a feed-in tariff scheme for renewable energies in July 2012 and it has been contributing to make rapid progress of installing renewables like, especially, PV power. On the other hand, some renewable power companies are getting to face difficulties with connecting their renewable energies to the power grid systems. In this paper, we evaluated the PV projects with consideration of output suppression using Monte Carlo simulation with DCF (Discounted Cash Flow) analysis. The results showed PV projects had the large and uncertain risk under the output suppression of limitless and no warranty.

In this study, the authors tried to visualize the discussion structure of online deliberation about climate change adaptation with text mining. Aa the result of this, it was possible to identify 11 topics such as “factors of climate change”, “climate change adaptation in agriculture”, “disaster risk” and so forth. It was also clarified that the major topics of deliberation were “recognition of climate change” and “factors of climate change”, and suggested that the initial recognition of the participants influence on the content of the discussion by visualizing relationship among the topics by drawing network graphs.

The change in perceptions of global warming was analysed through an online survey and group interviews. According to the results of the analysis, the video on the impact of global warming provided a vicarious exposure to the participants in their 20s, who had otherwise been difficult to sensitize, raised their perceptions of the effects of global warming, and provided them with clarity and certainty about the seriousness of the threat. These findings suggest that the moving images depicting the risks from global warming were more effective than a website. Compared to websites, the video on adaptation to global warming was more effective in raising the perception of 20-something participants towards the adaptation behaviour and the perception of 40-something participants towards the adaptation policy at local level.

This study estimated the reduction effects of vehicle emissions (CO2, NOx, PM) by abolishing temporary stop rule at railway crossing. The reduction effects are evaluated about the different condition of traffic volume and number of train. As a result, all kind of emissions are reduced by 10% when drivers has no temporary stop rule and have to go slowly at railway crossing on the over 300 traffic volume and the 3 min interval of train. These are reduced over 20% (maximum 70%) when drivers have no temporary stop and no going slowly rule at railway crossing. There are different among reduction rates of these emissions because of the condition of traffic volume and number of train.

In Japan，for the year 2015, more than 5 billion sheets of disposable diapers for adults are produced, and nearly all of these diapers are incinerated after use. In this study, greenhouse gas emissions (GHG), water consumption and land use occupation are compared between incinerating and recycling of used diapers using the Life Cycle Assessment (LCA) method. We found that, per ton of used disposable diapers, recycling will reduce greenhouse gas emissions by about 30 %, 6 ton of water consumption, and 180 m²a of land use compared to incineration.