Consideration of the local opinion is necessary to promote decommissioning project steadily. This paper discusses how to conduct the public participation in the decommissioning planning process by focusing on a local dialogue of Savannah River Site Citizen Advisory Board. The result shows that public participation at an early stage and active feedback from the government are required to make the local dialogue effective. Furthermore, it reveals that active participation of the government, collaboration among board members, and representative membership are important to realize the feedback. Key Words：

Place attachment to neighborhood is attracting attention in urban development as it promotes citizen participation in urban areas. In this study we focused on an urban park as a city component and aimed at clarifying status of place attachment of neighborhood residents to the park, and verifying relationship between place attachment and park use type. A mail questionnaire survey was conducted to residents living around the Utsubo Park in Osaka City. The results showed that 70% of the residents had place attachment to the park and the surrounding area. The place attachment of residents to the park was explained by emotional and social attachments. In addition, it was associated with the park use with intimate persons and length of park use period.

This study clarified how the relationship between the configuration of the green space on the main street and the intention to use it differs depending on the attributes of the general users of the street, such as age, presence of children, purpose of use, and frequency of use, using the Flower Road in Kobe City as a target. As a result of the study, we were able to categorize the usage behavior on Main Street into three usage groups: "urban active use group," "natural active use group," and "static use group." In addition, the characteristics of different user behaviors by user attribute were clarified, indicating the need for a green space that enhances the willingness of users with different attributes to engage in diverse user behaviors.

In this study, we clarified the composition of green spaces inside and outside the hospital sites and use of rehabilitation and perception of its effects in Hyogo Prefecture. As a results of the questionnaire survey, 86.3% of 109 hospitals had green spaces inside and outside the hospital sites，and 87.2% of those green spaces provided opportunities for physiotherapy. It was suggested that there is a psychological effect on rehabilitation in multiple in-site green spaces and a physical effect on rehabilitation in adjacent green spaces. In addition, as a result of analyzing the relationship between use of rehabilitation, DID and composition of green spaces using GIS, most of the hospitals that rehabilitate in the adjacent green spaces were located in urban areas. Analysis of aerial photographs suggested that the number and size of green spaces had an effect on whether or not it was used for rehabilitation.

The purpose of this study was to clarify the status of the introduction of the designated manager system and the actual situation of park management and operation, and to examine the effective use of the designated manager system and issues in park management, targeting Tokyo metropolitan city parks. Since more than 90% of the 82 parks have a designated administrator system, and furthermore, designated administrators are selected by special order for disaster prevention parks and cultural asset gardens, the Tokyo metropolitan government has determined that this system is being used effectively. In addition, the for-profit corporations that managed about 30% of the parks tended to be more active in disseminating the latest natural conditions on their homepages, despite the fact that they managed parks in relatively unfavorable conditions with no management offices or stores.

In this study, we grasped transition and effects on the collaborative managing Metasequoia (Metasequoia glyptostroboides) roadside trees in Makino Area, Takashima City, Shiga prefecture and aimed to gain the knowledge about town development that make use of roadside trees. As the results, in construction phase, existence effect that consisting of windproof and landscape function appeared. In featured phase, various organizations which involved in the roadside trees appeared utilization effect like tourism. In symbol phase, the private - public - citizens organization was established across the north and south zone, and media effect like community formation, bustle creation, educational and cultural exchange appeared through collaborative management. The system that gave back revenue of bustle creation to collaborative management, further developed an existence effect and utilization effect of Metasequoia roadside trees had an influence as a vehicle for tourism partnership .

Enclosed and semi-enclosed water areas are subject to eutrophication due to influx of nitrogen and phosphorus. It has been pointed out that nitrogen dynamics in these water areas differ according to land use, soil properties, and soil types. In this study, we attempted to elucidate the nitrogen dynamics from land to water in Notsuke Bay, eastern Hokkaido, which has volcanic soil and has been turned into grassland by the development of dairy farming. Anthropogenic nitrogen input occurred due to grazing. In addition, as a result, the nitrate nitrogen concentration in the grassland increased, and the nitrate nitrogen concentration in the soil water runoff from the grassland also increased. On the other hand, the riparian forest soil between the grassland and the river tended to reduce the concentration of nitrate nitrogen discharged from the grassland. From these facts, when soil water passes through riparian forests and wilderness between grasslands and rivers, nitrate nitrogen may be absorbed or denitrified by trees and bamboo grass. As a result, the concentration of nitrate nitrogen in river water may be lower than that in soil water.

Precise plant height (PH) estimation is consequential for precision farming. However, few studies have estimated tomato PH at the plant level using multi-spectral reflectance data obtained from unmanned aerial vehicle. In this study, 14 vegetation indices were compared for estimating tomato PH at the plant level under till and no-till conditions. Results showed good performance for predicting PH was observed for: Infrared Percentage Vegetation Index and Transformed Vegetation Index under till treatment; and Green Normalized Difference Vegetation Index and Weighted Difference Vegetation Index under notill treatment. In addition, all vegetation indices except for some indices under no-till treatment had lower performance for estimating PH as compared with those under till treatment due to soil background effects and presence of weeds.

This study aimed to clarify the site condition and species composition of communities of Pteris vittata, a non-native species established in Osaka City, and discuss the management of this species. Results showed that the relative dominance ratio of non-native species tended to be higher in study plots (masonry walls with P. vittata) than control plots (masonry walls without P. vittata) (Wilcoxon test p = 0.009). However, the impact of immigration of this species is assumed to be limited because the dominant species in the control plots are also ruderals. I conclude that it is not necessary to remove P. vittata at the present moment. Notably, this species should be monitored as an environmental indicator of soil contamination also in urban areas in Japan.

Sewage treatment plants are often constructed near the coast to collect sewage by gravity flow system. However, powerful and large-scale typhoons have become frequent due to recent climate change, and there is a rising concern that the sewage treatment plants located near the coast will be flooded by seawater. Furthermore, there is potential risk of continuous seawater inflow if the inlet pipe is damaged by the earthquake. It has been reported that high salt concentration reduces the treatment function of activated sludge, and it is required to assess the influence and countermeasures of high salt concentration on the treatment performance. The authors conducted an experimental study on the treatment performance of activated sludge with and without salt acclimation, and confirmed that the function of removing organic matter was ensured by acclimatization up to a salinity of 2.0%.

In this study, we focused on group feedback and verified its influence on people's energy conservation behaviors, the determinants of such behaviors, and its effectiveness in reducing electricity consumption. A total of 74 households was divided into an intervention group (36 households) and a control group, and group feedback was given once each week for 4 weeks to only the intervention group. As a result, only the intervention group subsequently showed a significant increase in the evaluation of descriptive norms, one of the determinants of energy conservation behaviors. However, there were no significant differences in subsequent energy conservation behaviors. On the other hand, weekly electricity consumption was reduced by an average of 1.59% over the six weeks from intervention to post-intervention.

Utilizing the microdata of the national statistical survey, It was analyzed that the current situation and issues toward regional decarbonization as a case study of municipalities in Iwate prefecture. It was obtained that valuable knowledge such as the rules, the current status and issues of cooperation with companies and other municipalities, the awareness of issues regarding future measures by municipalities, and the direction of response. Currently, only a part of the microdata is disclosed, but it is expected that disclosing all statistical microdata advance environmental policy.

Focusing on the parasol as one of the measures to reduce heat load for human to prevent heat stroke, the subject experiments aimed at comparison with hat in the artificial weather room and the actual environment were conducted to clarifying the effect on reducing human heat stress. From the results of artificial weather room experiments, it was confirmed that the parasol was effective in reducing the amount of sweating and suppressing the rise in skin temperature. In addition, by analyzing the heat balance of the human body under actual environment, the effect of reducing the amount of heat storage due to the improvement of the radiant environment by the parasol, were confirmed. Although there were differences due to the experimental condition, it was clarified that parasols are effective in reducing heat stress compared to hat when walking in severe thermal environment.

This study focused tendencies and functions of prior consultations under ordinances related to renewable energy. Grasping tendencies enacting those ordinances and examining the hypothesis of functions in the case of Maebashi City. As a result, it was clarified that those ordinances have described the prior consultation are showing an increasing trend, but relations to information sessions are different. And in the case, those functions of coping with environmental and opponent problems are effective, but reflecting local opinions are challenges.

The introduction of renewable energy is indispensable for the realization of decarbonized society. However, output curtailment of renewable energy is being carried out in remote islands. In this study, we evaluated CO2 emissions when the vehicle-to-grid system that stores and uses surplus renewable energy in electric vehicles will be introduce to Tanegashima Island in 2040. The results showed that when only buses were replaced by EVs, annual thermal power generation decreased by approximately 1,600 MWh and CO2 emissions were reduced by 2%. On the other hand, when more than 40% of vehicles were replaced by EVs, the CO2 reduction rate decreased, indicating that the reduction was not sufficient. In addition, when the amount of renewable energy introduced was increased, higher CO2 reductions were achieved, but the amount of output curtailment increased.

Under the act on the rational use of energy, the energy efficiency efforts of businesses are evaluated by the energy intensity. However, it is generally known that energy intensity is affected by production activity levels in addition to energy conservation efforts. In this paper, we evaluate relationship between production activity levels and energy intensity of business operator using the data of 8,774 business operators subject to the act on the rational use of energy. Additionally, we re-estimate the energy intensity using that data, normalized the fluctuation in production activity levels. As a result of the normalization, about 11% of businesses who had achieved their efforts goal changed to unachieved goals. On the other hands, about 4% of businesses that have not achieved their efforts goals have changed to achievement. The result of this analysis suggests that there is improvement in the existing energy intensity under the act on the rational use of energy.

This research investigates the understanding of the current state and components of Japanese gardens built in England from the late 19^th century to the present. In order to grasp the number of these gardens, a literature survey has been conducted. 41 gardens have been extracted from 4 literatures. The extracted chronological table is divided into early period 1850 ~1949 and developing period 1950 ~. The results suggested that the Japanese garden style developed in England was influenced by “strolling garden” in early period and “dry garden” in developing period. It was suggested that the Japanese gardens in England differed in form depending on the time when the gardens were created, and were influenced by the historical background.

This paper analyzes the relationship between the timing and content of learning by education on global warming and the level of awareness and policy acceptance based on a questionnaire survey, with the aim of linking this to effective policy development in light of the significance of environmental education in policy formation. In the analysis, explanatory variables with high importance were extracted by using random forests, and then statistically analyzed individually. The results showed that (1) Perceptions of the need for countermeasures are higher with memories of learning than without, (2) Learning during the university period may affect policy acceptance, and (3) The memorable learning contents throughout the period are those that are related to the impacts of global warming and given through experiences. Future research may include analysis of whether the trends identified in this paper are causal.

In this study, forecasts of the sea of fog were executed by using a machine learning algorithm of the lightGBM for high seasons of the occurrence at the Miyoshi basin in 2018 to 2021. This study has the advantage that the forecasts require only the AMeDAS meteorological data before 21 local time (LT) of the previous day. The SHAP analyses revealed that a temperature drop from 18 LT to 21 LT near the ground surface was the most important factor for forecasting the sea of fog in the following morning, and the model performance was improved by adding the mountainous AMeDAS data to the basin bottom data. The accuracy rate including both the occurrence and nonoccurrence of the sea of fog was 76.7% in the four-year average. In addition, probability forecasts were introduced as a method serving decision-making by a user.

This study organized questions based on previous studies of mountaineering accidents according to issues related to mountaineers and mountain trails. The results showed the scope of responsibility for mountaineers and managers, and that mountaineers’ safety should be commensurate with challenges and be established by stakeholders, and that support and regulation for mountaineers should be considered complimentary. Because the contributing factors of trail conditions and surroundings vary according to the type and level of facilities, information services, and regulation on trails for each mountains range and trail should be classified according to the degree of difficulty, so that, in the planning stage, mountaineers can select trails that match their competence. In addition, adaptable coordination of facilities, information services and regulation of changeable contributing factors can be effective in reducing and avoiding risk in mountaineering activities.

This research aims to verify successful case of Destination Management/Marketing Organizations' (DMOs) formation and establishment plans and clarify the DMOs' overseas promotional strategies and their characteristics, with Taiwan as the target group. We assessed the relationship between promotional activities and the total number of foreign hotel guests, after selecting DMO^’s successful cases of attracting visitors from Taiwan and conducted co-occurrence network analysis of content described in relation to overseas promotions. The results indicate the DMOs conducted promotional activities centered on "dissemination of information overseas" and "promotions directed at travel agencies," supplemented by "aggressive business sales" and "tourism PR."

This study targeted the tourist guidebooks related to the “Project to Fully Enjoy National Parks”, and clarified the characteristics of the cultural landscape concept positioned in Japan's national parks system. The target national parks are eight locations that are promoting the “Project to Fully Enjoy National Parks”. The target tourist guidebook reported a total of 73 cultural resources. When these cultural resources were read as cultural landscapes in the national park system, the breakdown of cultural landscapes was recognized as follows. There are 25 religious landscapes, accounting for 32.1%, 5 village landscapes, accounting for 6.4%, 8 industrial landscapes, accounting for 10.3%, and 40 other landscape elements, accounting for 51.3%.

At the UN Summit held in September 2015, the adopted Sustainable Development Goals (SDGs) included clean water and sanitation. However, public awareness of the importance of rainwater as a water resource is poor in Japan. To ameliorate this situation, "Amamizu Drink," an awareness transformation tool, was used to help people engage in the extraordinary experience of "drinking rainwater." A survey was conducted to investigate the tool’s impact on raising people's awareness of rainwater. The survey results revealed that approximately 70% of the subjects who drank the "Amamizu Drink" showed a tendency to change their attitudes, especially young people in their 20s or younger. The results of this study could be a basis for clarifying the factors necessary to further raise awareness of the importance of rainwater and developing effective environmental education materials for a wider range of age groups.

Chubu-Sangaku National Park has been implementing the "North Alps Trail Program (tentative)" on a trial basis since 2021. In this study, based on this case study, we conducted a text-mining analysis using free description data collected from user questionnaires in order to grasp what points could be improved in the user burden system, based on opinions spontaneously expressed by users regarding user awareness of the cost burden for maintaining trails in national parks. As a result, a positive evaluation was confirmed for the entire initiative, and opinions on the issues and programs for maintaining the mountain trail could be classified into nine groups. In addition, it became clear that the words that appear differ depending on how well they are aware of the current issues.

This study used web scraping to collect TripAdvisor travel reviews of the Japanese World Heritage Site Shurijo Castle written in Japanese, Chinese, and English. Text mining was then applied to clarify the landscape perceptions, behavioral preferences, and travel concerns of users. The results indicate that while tourists are generally satisfied with the Japanese and Chinese cultural charms reflected in Shurijo Castle, domestic Japanese tourists expressed some negative emotions about the prolonged and ongoing restoration work. Japanese tourists were also more familiar with Shurijo Castle's attractions, and their choice of sightseeing methods, timing, and perceptions were more diverse. Tourists from Greater China were not only interested in specific historical features such as architectural layouts and cultural relics but also in tourism infrastructure. English-speaking tourists were more inclined to express their feelings subjectively and took advantage of Shurijo Castle's high terrain to satisfy their need for spectacular views.

In this study, by using text mining analysis of the Twitter posts on a social networking service (SNS) by people who have visited islands, we grasped the attractive factors of islands and the mental landscapes that visitors have. As a result of analyzing the nondesignated islands as targets, (1) Visitors are attracted to the extraordinary nature unique to islands, and enjoy the spiritual satisfaction that comes from enjoying the view and openness of the seaside. (2) Bridged islands are regarded as familiar tourist destinations because of the convenient access to the islands due to the construction of the bridge. (3) For unbridged islands, the imagery of taking a boat to go to the island and the scenery of sightseeing are conceived, and the characteristics of islands can be sensed.

Historical buildings are paramount as one of the most important regional resources in various regions because they have great potential to inherit local historical events and culture and to serve as the core of cultural creation. In this study, industrial modernization heritage as characteristic historical building, RIKEN, is the subject of this research. The purpose of this report is to grasp characteristics of BIM Data of the industrial modernization heritage by constructing multi-age BIMs and analyzing the changes in historical events and reproduced BIMs. The results show that the BIM data was changed by a lot of facilities such as experimental devise, sanitary facility, and furniture in comparison to building skeleton. It founds that reflects historical events.

We hypothesized that college students with higher tendency toward internet addiction disorder tendency, new type of depressive tendency and life stress tend to develop a more severe digital dementia tendency. In addition, students who exhibit higher levels of resilience, a preference for exercising with others and quality of life (QOL), all of which suppress internet addiction disorder ,new type of depressive tendency and digital dementia tendency. Longitudinal data collected by questionnaire surveys of college students were analyzed by structural equation modeling, and the results appeared to support almost our hypothesis. The study also suggested the importance of improving resilience and preference for exercising with others in particular as preventive measures against the negative effects of the chain reaction of these three types of bad tendencies.

Fashion industries are taking a greater interest in sustainable fashion with the rise in public awareness of global environmental and social problems. This study aimed to analyze environmental value propositions regarding denim industries in the Sanbi region and which factors enhance their value propositions (VPs). Qualitative analysis was performed on data from an interview survey and applied Environmental Basic Plan as analytical framework. The study finds that the land ethic influences the VPs and infers that VPs are elements of not only business strategy, but also a regional strategy of producing environmentally friendly denim products.

In this study, we evaluated the outputs (OPs) and compared outcomes (OCs) which are the effects of changes in society and human awareness, of the " Kinoeki Project " activity and local currency project as well as the models produced by the environmental and social value structure of the two districts. First, we created a flow diagram of resources and the economy to visualize the OPs. Second, we analyzed the paths by analyzing the covariance structure to create a common model for the long-term OC effects on the local community generated from the short-term OC effects on individuals, local environment, and local currency in the two districts, based on questionnaire surveys of " Kinoeki Project " members and stores handling local currency. The intensities of the influence from the OC effect of local currency to the long-term OC effect differed between the two districts for Kinoeki Project members.

Efforts to conserve regional resources were examined using Oshima Tsumugi produced on Amami Oshima and its dye, Rhaphiolepis umbellata, as examples. Although the production of Oshima tsumugi was prosperous until the 1980s, the production volume has been declining due to sluggish demand for Japanese-style clothing and the lack of an entity to control the production area. The survey also revealed that the planting of Rhaphiolepis umbellata has not been successful due to a lack of uniformity. In response to the decline in production in recent years, the council established by pongee operators and local government officials to train the craftspeople.

In this study, we clarified the actual conditions of local activities related to community revitalization and the factors that influence them in Tamba area, Hyogo prefecture, based on a questionnaire survey. Among the participation in local activities, "creation of a safe and secure environment" and "preservation and improvement of the neighborhood environment" related to the living environment were found to be the most active local activities, regardless of the degree of progress of small-scale settlements. In addition to potential issues such as the degree to which settlements are becoming smaller, mutual interaction between local residents and migrants was found to contribute to the activation of other local activities. In order to develop "creation of new livelihoods" related to future regional revitalization, it is effective to activate mutual exchange between local residents and migrants.

This study explored the first opportunities for becoming aware of environmental issues, living environments, and nature experiences in early life and examined their associations to current pro-environmental awareness and behavior. Structural equation modeling analysis on questionnaire data on university students in Japan revealed that having nature experiences and loss of nature and environment as the first opportunities enhance current environmental awareness, leading to pro-environmental behavior. It also indicates that having rich nature in the living environment during the first opportunities is positively associated with present environmental awareness. These findings suggest the importance of exposure to nature in provoking environmental awareness in early life.

Using the "Omishonin" certification system of Higashiomi City, Shiga Prefecture, as a case study, the study clarified the important elements in implementing a system to support the realization of a sustainable society by summarizing issues and responses at the design and operation stages, evaluation mechanisms, results of operation, and improvement plans. At the regional level, it is important to promote a clear understanding of the relationship between business activities and regional sustainability, and the study proposed to draw a regional original sustainable vision and to use the contribution to the realization of that vision as a certification criterion. Twenty-one local businesses were certified based on the evaluation of their contribution to the region in terms of social, economic, and environmental aspects of their business activities. Future issues are to promote the sharing of the philosophy of sustainable regions and to study a method to evaluate the contribution to the region more quantitatively.

We clarified the type of the area to which residents were evacuated in Namie town about the evacuation from the evacuation-ordered zone due to the nuclear power station accident. The rate was low in both the evacuation and residential rates within the evacuationordered zones. In addition, many residents evacuated to the municipalities where they had been living before the nuclear accident or where they had easy access to the municipality. The evacuees were concentrated in municipalities where residence restrictions had not been issued and were relatively close to the evacuation-ordered zone, a trend similar to that seen in the movement of residents in the tsunami-affected areas of the Great East Japan Earthquake.

The purpose of this study is to investigate the number and height of Platanthera hologlottis, a rare plant growing in wetlands, and to understand the characteristics of their habitat. In particular, we aimed to understand the relationship with the water situation, which is a major environmental factor. The target area is a small-scale wetland commonly found in hills and mountainous areas, suggesting the existence of wetlands other than the target area for which growth has not yet been reported. From the water condition and the growth range of P. hologlottis, it was inferred that the growth environment of P. hologlottis was supplied with a certain amount of water throughout the growth period and the wetland was kept moist.

The yellow-legged Asian hornet was firstly spotted in 2004 in France, then firstly reported in 2016 in England. Before that, the UK Government had prepared to respond this species, based on learning from the situation in France, and had published the risk assessment in 2011 and the response plan in 2012. Based on the plan, the Government had set up information system for the public to submit information and dispatch the staff to France to have training for removal operation in 2014. As of the end of April 2022, there have been 22 sightings including 12 nests; all of them have been destroyed and any overwintering nest has not been found. Those Government’s responses have been supported by beekeepers’ organized vigilance and information from the public, which is one kind of citizen science. This is the noteworthy case of a nation-wide successful rapid response case based on advance preparation.

The "Act on Promoting the Utilization of Sea Areas for the Development of Marine Renewable Energy Power Generation Facilities" came into effect in 2012. As a result, offshore wind projects are promoted nationwide. However, there are no rules regarding prior coordination prior coordination with stakeholders to designation of promoting area. In order to address this issue, it is necessary for public organizations to provide opportunities of stakeholder participation and undertake prior coordination efforts in a somewhat formal manner. The purpose of this study was to examine effective prior coordination activities by organizing the Ministry of the Environment's zoning project and other efforts related to offshore wind projects, using Goto City as a case study. The features of Goto city were that the city established many meeting for various theme and started collaboration projects with stakeholders by small scale. The roles of city officials, local entrepreneurs, local researchers and local influential person in supporting these collaboration was important.

The business model of solar panel’ setting which are virtually free for a use was announcing from enterprises. There is a social background in which solar panels have been accepted by citizens. The purpose of this paper is to clarify a perception that there is no problem on the landscape by the Landscape Agreement based on the Landscape Law. That is because it is a system that consider attention to the scenery of residential areas. In order to grasp objective numerical value, TV antenna on the roof was positioned as a comparison object for solar panels. Examining the handling of solar panels that stipulated in the Landscape Agreement, it was found to consider the attention by a promotion zone in Tsukuba city.

Toward heat adaptation in community planning, it is effective to conduct a thermal environment simulation for target neighborhoods. The “Project PLATEAU” initiated by MILT may be conducive to diffusing such simulation, since the project releases the 3D city models of municipalities to public. In this paper, we report the CFD analysis for the outdoor environment during the summer daytime in the urban center neighborhood, Nishiki 2 District, Nagoya City, by using the 3D model. The result showed that comfortability in the space of “Kaisho” located in the center of each block in the neighborhood is relatively positive as direct sunlight is blocked by surrounding buildings. We demonstrated the usefulness of PLATEAU data for this analysis as well as the lack of information in its data, and subsequently, pointed out the issue of data availability for generalization of this analysis process.

This study was to try to identify how each municipality implements environmental education related to brown bears, based on the results of a questionnaire survey. The results showed that the policy issue of brown bear control was highly ranked in municipalities where brown bears are inhabiting the area. The results of the analysis showed that municipalities where brown bears are inhabited set a high policy agenda of brown bear control. However, in municipalities where brown bears do not inhabit, the importance of policy issues related to brown bears was low. The municipalities that recognized the relationship between brown bears and residents as an issue also had a high percentage of respondents who were engaged in some kind of environmental education related to brown bears. But contents itself is still insufficient.

This study reports the results of a survey on the implementation of "Local education" introduced in Toyooka City, Hyogo Prefecture, in 2017 and its educational effects over the three-year period from 2017 to 2019. The results show that learning effects were obtained from the viewpoint of “learning about storks”. On the other hand, there are issues that need to be resolved in order to deepen stork education as regional educational program. In order to deepen stork education as ESD and regional learning, it is necessary to make the exploration of "coexistence with storks" more prominent, which will require more support for schools and teachers.

This study aimed to examine the characteristics of street littering in Japanese and Malaysian university students by comparing their opinions about the reasons and solutions for littering in the respective countries. The results of text mining on statement data revealed that respondents’ primary concerns are related to the lack of street dustbins in both countries. The results also suggest that the Japanese respondents believe that maintaining a clean environment on the streets in practice can prevent littering, while the Malaysian respondents believe that raising public awareness by education could contribute to avoiding littering. We discussed the potential influence of socio-cultural characteristics on these differences.