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Articles

Place-based environmental education to promote eco-initiatives: the case of Yokohama, Japan

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Pages 292-308 | Received 13 May 2020, Accepted 07 Jul 2020, Published online: 25 Aug 2020

ABSTRACT

Due to its rapid population growth and urban development, the environment of Yokohama in Japan has significantly degraded. In response, substantial efforts have been made to address socio-environmental issues. One such initiative was a programme called G-30. Implemented in 2005, it aimed to reduce 30% of the amount of garbage waste by 2010, in comparison with that of 2001, by promoting ‘Recycle, Reduce, and Reuse’ (3Rs). Ultimately, the city reduced 43% of its garbage waste during that period. The Japanese government designated the city as one of the Environmental Model Cities in 2008, Environmental Future Cities in 2011 and Sustainable Development Goals (SDGs) Future Cities in 2018, while the World Bank recognized it as one of the Eco2Cities in 2010. A place-based environmental education tool called the eco-picture diary has significantly contributed to the success of the G-30 programme and the designation of the above-stated eco-initiatives. Through documentation research and a series of interviews with stakeholders, the current study examines the eco-picture diary and its potential roles in promoting eco-initiatives, applying the change theory for place-based education. Findings suggest that the eco-picture diary, as a place-based environmental education tool, can promote eco-initiatives by broadening and deepening community social capital.

JEL CLASSIFICATIONS:

INTRODUCTION

Place-based environmental education plays an important role in helping achieve Sustainable Development Goals (SDGs). This is also the case in Yokohama, Japan. As a major city next to Tokyo, it has been developing rapidly, with its population having reached 3.75 million in 2019, quadrupled in the last 70 years (Higashide, Citation2019). Due to its rapid population growth and urban development, the city's environment deteriorated drastically. To counter this, the city has made substantial efforts, including launching a programme called G-30, implemented in 2003, that aimed to reduce 30% of the amount of garbage waste by 2010 (1.13 million toness), in comparison with that of 2001 (1.61 million toness), by sorting the garbage into 15 different categories to recycle, reduce and reuse (3Rs). The city successfully managed to reduce 43% of its garbage waste within this period. Yokohama was designated as one of the Environmental Model Cities in 2008, Environmental Future Cities in 2011 and SDGs Future Cities in 2018 by the Japanese government; it was also recognized as one of the Eco2Cities in 2010 by the World Bank. A place-based environmental education tool called the eco-picture diary was found to contribute significantly to the success of the G-30 programme and the designations of the above-stated eco-initiatives (Ito & Reid, Citation2020). The current case study examines the eco-picture diary and describes its roles in promoting them through documentation research and a series of interviews with stakeholders. It contributes significantly to the literature by illustrating how place-based environmental education tools such as eco-picture diaries help increase the awareness of stakeholders towards socio-environmental issues so that they can formulate strategies to address these issues by broadening and deepening community social capital, consequently establishing healthier social and natural communities. Few works of the existing literature discuss these processes. In undertaking a case study, Yin (Citation2018) underscores the importance of differentiating the substance of the case (i.e., how effective it is) from the process of its implementation (i.e., how it becomes pervasive). Given that previous research has analysed the implementation process of the eco-picture diary (Ito & Reid, Citation2020), the current study focuses on examining its substance and exploring its possible application in wider contexts, using the change theory for place-based education proposed by Powers (Citation2004).

ECO-PICTURE DIARIES

With the slogan ‘Children's ideas help transform world systems’, the eco-picture diary aims to raise awareness of students, their family members and other stakeholders towards socio-environmental issues and help them elaborate on strategies to address these issues. The eco-picture diary was introduced in 2000 by Recycle Design, a cooperative civil society organization based in Yokohama. Over 250,000 students participated in the project between 2001 and 2018 (). It originally aimed at promoting the 3Rs between 2000 and 2008, but expanded its scope to help reduce greenhouse gas emissions between 2008 and 2015. Since 2015, it has been used to help inform stakeholders about SDGs. In recent years, on average, approximately 20,000 students from nearly 300 schools have submitted eco-picture diaries annually.

Figure 1. Number of students who participated in the eco-picture diary project.

Figure 1. Number of students who participated in the eco-picture diary project.

The eco-picture diary functions as follows: students are instructed by teachers to describe, through their drawings and writings, what they would like Yokohama to be like when they grow up and what they could possibly do now to help realize their ideal future through discussions with their family members. This enables them to elaborate on and express strategies about addressing currently underlying socio-environmental issues.

Application forms for the eco-picture diary are distributed to all elementary schools in Yokohama at the end of June. On agreement, teachers use the eco-picture diary as part of the summer break assignment. The submitted diaries are then evaluated by various stakeholders, including those from the private sector, and are returned to the schools at the beginning of September. The most highly valued eco-picture diaries are awarded or exhibited at various places, such as the Japan International Cooperation Agency (JICA) Yokohama or the United Nations Educational, Scientific, and Cultural Organizations (UNESCO) Schools Conferences as well as online (http://www.recycledesign.or.jp/enikki/). In recent years, approximately 5000 citizens have visited these exhibitions annually.

Since 2012, the eco-picture diary has been used in other cities, including Shimokawa (Hokkaido), Higashi Matsushima (Miyagi), Kashiwa (Chiba), Minami Souma (Fukushima), Naha (Okinawa), Kouchi (Kouchi), Yamaguchi (Yamaguchi), San Diego (CA, USA) and Curitiba (Parana, Brazil). In 2018, Yokohama started collaborating with JICA and the eco-picture diary is now being practiced in 13 African countries (i.e., Egypt, Gabon, Cameroon, Kenya, Sudan, Zambia, Djibouti, Tanzania, Niger, Burkina Faso, Botswana, Malawi and Mozambique) (Recycle Design, Citation2019).

The eco-picture diary is not only place-based but also entails backcasting, reflective learning, and ecopedagogic approaches as suggested by previous research and explained below.

The eco-picture diary as place-based education

Given that environmental responsibility is one of its essential features (Howley et al., Citation2011), place-based education can contribute to the sustainable development of communities by enhancing local people's knowledge, needs, values and networks (Horlings, Citation2015). Place-based approaches enable citizens to understand and interact with their environment and to feel a particular connection and sense of belonging to their environment and community. Hence, they begin caring more about the environment in where they live (Kudryavtsev et al., Citation2012). This sense of place is fundamental to fostering environmental and civic engagement (Schild, Citation2016; Smith, Citation2007) and comprises place attachment and place meaning (Lichrou et al., Citation2014). Place attachment is an emotional connection or link between people and specific places, such as the neighbourhood and city (Hidalgo & Hernández, Citation2001), while place meaning describes the reasons for this attraction. Sense of place is central to several environmental learning initiatives because it may lead to pro-environmental behaviours (e.g., Heimlich & Ardoin, Citation2008).

Place-based education is often used to nurture a sense of place in students. It refers to a wide range of pedagogical approaches in which students learn about local environments through experiential learning (Warkentin, Citation2011) by connecting their school experiences to those of local communities (Smith, Citation2007). By connecting students to their local environment and community, place-based education helps foster environmental citizenship (Schild, Citation2016). Powers (Citation2004) also noted that one of the key components of place-based education is the opportunity for civic engagement because, as Howley et al. (Citation2011) highlighted, it focuses on students’ connections to their communities to promote citizenship. This civic promotional aspect of place-based education overlaps with that of ecopedagogy. As it intends to improve a specific place for transformation (Coughlin & Kirch, Citation2010), it is a form of critical pedagogy (Gruenewald & Smith, Citation2008). Indeed, critical pedagogies are essentially pedagogies of place (Johnson, Citation2012). Therefore, some scholars suggest integrating it into the place-based educational approach.

Critical environmental education/ecopedagogy

Derived from critical theory, critical pedagogy represents a transformational educational response to dominant institutions and/or ideologies in which teachers and students question underlying power relations (Bellino & Adams, Citation2017). Likewise, Misiaszek (Citation2016) explains that ecopedagogy focuses on ensuring that students and teachers understand socio-environmental connections to determine environmental actions through praxis, while also enabling them to identify the gap between the current situation (what is not ideal) and the situation they wish for (what is ideal). Whitehouse (Citation2018) points out that the term ‘eco’ in ecopedagogy indicates the educational prospect of actively caring for the lives of others. This approach addresses the negative impacts of neoliberal urbanization by raising students’ awareness of how social and natural worlds and their problems are interconnected (Ceaser, Citation2012).

Gruenewald (Citation2003) states that critical place-based pedagogy emphasizes experiences in connection with protecting environments for future generations and encourages teachers and students to help revive or enliven their social and ecological environments. Similar to place-based education, which connects students with communities (Schild, Citation2016), ecopedagogy is also relevant to civic education because it is a critical and democratic approach to foster citizenship (Freire, Citation2000; Misiaszek, Citation2015; Mogensen & Schnack, Citation2010).

Chawla and Cushing (Citation2007) note that collective actions are more effective than individual ones in promoting environmental education initiatives: people are more likely to be engaged in social actions if their behavioural control is recognized within their collective competence. Therefore, students need opportunities for collaborative decision-making in order to enable them to control their environment – ‘another core principle of democracy’ (Chawla & Cushing, Citation2007, p. 442). In this context, like place-based education, critical pedagogues emphasize learning outside the classroom because it enables students to understand the environment holistically (Misiaszek, Citation2015).

Nogueira (Citation2018) notes that ecopedagogy helps develop critical thinking skills, which are essential to work towards the transformation of society. Hence, ecopedagogy must be in accordance with transformative and emancipatory environmental education/education for sustainable development to promote active democratic participation to counter neoliberal sustainable development agendas. The emancipatory formative process enables learners to ‘learn to make an autonomous and conscious decision-making, providing an effective and democratic sustainability, that is, a Freirean perspective of education’ (Nogueira, Citation2018, p. 54). Freirean education is based on the critical pedagogy of hope and utopian thinking to realize an ideal future by addressing current socio-environmental issues (Misiaszek, Citation2016). Freirean education aims to empower and enable the vulnerable by guiding them to realize that they have a language to express what they feel, articulate their own ideas and struggles, and see the world as a reality in the process of transformation (Freire, Citation2000). The eco-picture diaries serve children as a tool for this purpose.

Backcasting

Given that eco-picture diaries reflect individual and collective thinking, images and visions in an attempt to realize a desirable future, it is considered a backcasting approach (Lehtonen, Citation2012). Vergragt and Quist (Citation2011) define backcasting as first generating a desirable future and then looking backwards from that future to the present in order to strategize and plan how it could be achieved. As Robinson (Citation2003) notes, ‘unlike a predictive forecast, the purpose of backcasting analyses is to assess social and environmental feasibility and desirability, rather than to predict likelihood’ (p. 748). Mendoza et al. (Citation2017) describe backcasting as an approach to develop normative scenarios in order to examine the feasibility and implications of achieving desirable outcomes, by exploring alternative pathways towards it. Phdungsilp (Citation2011) notes that establishing a sustainable city requires a systems-wide approach. Backcasting, therefore, involves various stakeholders ‘in the process of defining and evaluating the desirability of the scenarios’ (Lehtonen, Citation2012, p. 844). This approach coincides with the characteristics of the eco-picture diary, as futures education, which involves multiple stakeholders at different levels, enables students to address concrete socio-environmental problems to achieve an ideal future in a systemic manner.

Futures education aims to provide students with opportunities such as reflection, critical-thinking and problem-solving skills, and cooperation and participatory decision-making experiences to manage and develop a better common future (Lehtonen, Citation2012). These skills and experiences may enhance self-efficacy, foster a sense of connection to the community, and serve as civic education (Lehtonen, Citation2012). Kopnina (Citation2014) explains that backcasting approaches are useful for environmental education/education for sustainable development because ‘they make participants feel responsible and empowered to take action to reach their vision for a better community by raising their awareness of environmental issues’ (p. 219). Misiaszek (Citation2016) also asks: ‘If all citizens in a society have an interest in the future of that society, why should they not have a “say” in the education of the next generation of citizens?’ (p. 601).

In the process of creating eco-picture diaries, students think hard to envision an ideal future image of Yokohama and elaborate on how to address the current socio-environmental issues to realize it. While beginning to practice backcasting, Lehtonen (Citation2012) notes that students find it difficult to think spontaneously about the future and the images of the future of the world tend to be negative. It ‘provokes fiction, surrealistic and humorous future thinking’ (p. 109). By the end of the practice, however, students come to self-reflect and their future thoughts become more realistic (Lehtonen, Citation2012). This suggests that the eco-picture diary is also a reflective learning approach.

Reflective learning

Given that the eco-picture diary is journaling and that journal writing is a means of reflection (Dyment & O’Connell, Citation2011), it can be considered a kind of reflective learning tool. Hubbs and Brand (Citation2005) explain that journal writing reflects the students’ internal processes including ‘an experience, a personal value, or a belief and serves as a means of inner dialogue that connects thoughts, feelings, and actions’ (Hubbs & Brand, Citation2005, p. 62). The rationale for reflective journaling is drawn from the experiential learning theory originally proposed by Dewey and subsequently developed by Kolb (Citation1984).

Kolb proposes the following stage model of experiential learning: (1) concrete experience, (2) reflective observation, (3) abstract conceptualization and (4) active experimentation or application. Reflective journaling helps this learning process. In the first stage, a student describes an experience. In the second stage, the student reflects on a specific experience. In the third stage, the student considers and questions the meaning of the experience. In the final stage, the student applies new meanings, interpretations, or understanding of the experience.

The eco-picture diary includes images as well as texts, which help activate and develop a variety of cognitive abilities for reflective learning (Mayer & Sims, Citation1994). Hansen and Machin (Citation2013) note that text/language and image/visual interactions have received considerable attention in the field of environmental communication. The number of studies on visual environmental communication has been significantly increasing in part because the benefits of visual stimuli over verbal material on episodic memory recognition have been validated through various studies (Brodeur et al., Citation2017). Accordingly, reflective journaling through the eco-picture diary is a cognition-developing tool for reflective learning, which may be instrumental in improving the intention to participate in pro-environmental activities (Varela-Losada et al., Citation2016).

Based on the example and theoretical features of the eco-picture diary mentioned above, it is hypothesized that the eco-picture diary is a place-based education tool in combination with ecopedagogy, reflective learning and backcasting approaches. The current study aims to test this hypothesis.

Theoretical framework and orientation: change theory to place-based education

In order to analytically generalize findings from case studies, we adopted Powers's (Citation2004) change theory for place-based education. This theory assumes that place-based education helps a student first become knowledgeable about and familiar with a place, after which he/she develops a sense of attachment to the place. Place-based education could help students to first acquire relevant skills, followed by competence and self-efficacy. By connecting schools or their activities to the community, along with positive attitudes towards and self-efficacy over the local environment and within the community setting, students become active participants in their community. As their civic engagement increases, social capital expands and deepens. Social capital refers to social networks and resources within social systems where people share common affiliations and help reinforce or have a consensus on social norms of reciprocity and trustworthiness (Putnam, Citation2004) that foster pro-social behaviours (Coleman, Citation1998) and enable people to address socio-environmental issues in the community through collective action (Flanagan et al., Citation2015, p. 296).

Social capital comprises informal and formal networks: the former includes relationships with families, partners, friends and neighbours, while the latter includes relationships with formal entities, such as governments and businesses (Western et al., Citation2005). Bridging social capital is challenging because ‘it demands that people and communities look beyond their comfort zones to form relationships with others who are not like them’ (Flanagan et al., Citation2015, p. 296). For instance, students usually may not have opportunities to interact with governments and businesses, although these interactions can be very beneficial for them educationally and socially. However, place-based education like the eco-picture diary provides this opportunity. Overall, improving a community's social capital will lead to a socially and environmentally healthier community ().

Figure 2. Change theory for place-based education.

Source: Powers (Citation2004).

Figure 2. Change theory for place-based education.Source: Powers (Citation2004).

It should be noted that the change theory has some constructs similar to those of the theory of planned behaviour, which assumes that intentions to perform behaviours can be predicted from attitudes towards the behaviour, subjective norms and perceived behavioural control. These intentions, together with perceptions of behavioural control, account for considerable variance in actual behaviour (Ajzen, Citation1991). Perceived behavioural control refers to people's evaluation of the levels of difficulty of performing a given behaviour. Non-controllable factors, such as time, money, skills and the cooperation of others, may hinder control. When control is not a problem, behaviours can be predicted from intentions, such as voting intentions and a mother's choice of feeding method. Subjective norms refer to the perceived social pressure to perform or not to perform a specific behaviour. As Manstead (Citation2011) explains, many behaviours depend on physical and psychological support or a lack of support from others. Attitudes towards the behaviour may determine whether a person has favourable or unfavourable feelings about the behaviour in question (Ajzen, Citation1991). To sum up, while the change theory for place-based education is a relatively new working model, it is founded on the well-known theory of planned behaviour.

METHODOLOGY

The current research employs a case study approach. A case study is an empirical method that investigates a contemporary phenomenon (the ‘case’) in depth and within its real-world context to understand what the case is, and how and why it works (Yin, Citation2018). Case studies aim at analytic rather than statistical generalization and is concerned not so much for a representative sample, but for their possible contribution to confirm, challenge, or extend theory or the extant literature relevant to the case (Cohen et al., Citation2011; Yin, Citation2018).

Methods

To obtain data, we employ documentation research and open-ended in-depth interviews. Documentation research is important in supporting and augmenting evidence from other sources (Yin, Citation2018). Here, documents refer to eco-picture diaries themselves for analysis. We analysed 529 eco-picture diaries that had won awards of any kind. Further, interviews with relevant stakeholders were conducted. As suggested by Yin (Citation2018), we asked the interviewees about not only their opinions about the eco-picture diary but also their insights and meanings related to it. The interviewees included two city personnel, three staff members from research design, one elementary school teacher, one elementary school principal and one president from a private company. These interviewees were recruited via snowball sampling methods, starting from the Yokohama personnel.

The interviews took place in a focus group because the data that emerge from interactions through focus groups are known to ‘yield insights that might not otherwise have been available in a straightforward interview’ (Cohen et al., Citation2011, p. 436). While regular focus groups typically range from four to ten participants (Krueger & Casey, Citation2000), mini-focus groups, which involve three to four participants, are used for the current research because they are useful to discuss the topic in depth (Anderson, Citation1998); moreover, they are ‘easier to recruit for and can be held at locations that larger groups cannot’ (Daley, Citation2013, p. 11). The focus group interviews were held between 15 November and 15 December 2019 and 17 January 2020.

Data analysis

We conducted content analysis (CA) to analyse both eco-picture diaries and interview scripts. CA classifies written texts as well as visual data into categories through coding and categorization (Silverman, Citation2017). Categories are ‘derived from theoretical constructs or areas of interest devised in advance of the analysis (pre-ordinate categorization) rather than developed from the material itself’ (Cohen et al., Citation2011, p. 559). CA also enables researchers to analyse data quantitatively by detecting frequencies and patterns that indicate significance (Vaismoradi et al., Citation2015). As described above, the eco-picture diary is a place-based instructional tool, entailing ecopedagogy, backcasting and reflective journaling/learning. We coded transcribed data and classified them into these categories based on the following criteria: for ecopedagogy – to what extent the current socio-environmental issues are described; for backcasting – to what extent strategies to address the current socio-environmental issues to realize a desirable future are described; and for reflective learning – to what extent students’ reflective thoughts are described (e.g., detailed/concrete analysis of issues and explanations of solutions instead of simple descriptions). We placed relevant responses into these preset categories to help understand the eco-picture diary better. In analysing visual/textual data from eco-picture diaries, we used a five-point Likert scale (5 = very strong to 1 = very weak) to examine to what extent the contents of eco-picture diaries reflected each category. For instance, if both visual and textual data from an eco-picture diary very strongly reflected ecopedagogical aspects while very poorly reflected future backcasting and reflective learning, we assigned a rating of 5 for ecopedagogy and 1 each for future backcasting and reflective learning. By doing this, we were able to understand better the features of the eco-picture diary.

Given that we use the change theory for place-based education, we also selected relevant responses to analyse the eco-picture diary according to the theoretical framework. The NVivo10.0 software was used to help organize and code the transcribed data.

Reliability and validity

Case studies are susceptible to issues with reliability and validity (Yin, Citation2018). In order to reduce the threat to the reliability of research, the process of analysing data should be systematic and transparent (Schreier, Citation2012). For this purpose, intercoder reliability was calculated for the current research. Intercoder reliability is ‘a measure of the extent to which independent coders evaluate characteristics of texts’ (Lombard et al., Citation2002, p. 589). The two different authors of the current study coded and categorized the same data to establish a consensus (Saldaña, Citation2015). For the validity of case studies, connecting the case with theories is crucial for it to be generalized analytically (Yin, Citation2018). As mentioned above, we used Powers's (Citation2004) change theory for place-based education. As suggested by Gerring (Citation2017), we also went back to the respondents and consulted them to confirm whether their responses were properly reflected in our analysis.

RESULTS

Analysis of eco-picture diaries

The average score of each category is presented in . Findings suggest that a typical eco-picture diary includes reflection (reflective learning) on current socio-environmental issues (ecopedagogy) and future solutions (backcasting) in texts while solutions are particularly emphasized in images. One of the most common contents in the eco-picture diaries was students imagining problematic situations – for example, of empty cans and plastic bags being littered in the river or ocean, making it difficult for fish or water animals to live comfortably. Students study relevant materials, discuss the topic with their family members and think of solutions to address these issues. Finally, they come up with not only simple solutions – such as the use of eco-friendly shampoos and detergents or picking up trash – but also more creative ones, as described in the examples below:

Table 1. Content analysis of eco-picture diaries (n = 589).

A fourth-grade student wrote:

Yokohama is a large city and uses a lot of electricity [which causes pollution in the process of producing it]. I think it is really important to have cleaner air and less pollution in the future. For example, we should use a sustainable energy source like the sun. My idea is to plant artificial trees with elliptical shaped leaves that actually serve as small solar panels. The trunk of the tree is an air filter, taking in polluted air and producing clean air for use to breathe. During the day time, these trees absorb solar energy while cleaning the air. At night time, they turn into pretty street lights that replace ordinary metal street lamp posts. I think Yokohama can be a green city. To do so, we should cooperate help make Yokohama a clean, beautiful, and safe city for its citizens to live.

In this example, the student elaborates on how Yokohama should be in the future and how the city should address local socio-environmental issues to help realize it. Also, the example indicates that the student expresses the current unsatisfactory situation that Yokohama does not produce renewable energy and causes pollution and elaborates on strategies to transform the city into a more sustainable city (, left).

Figure 3. Examples of eco-picture diaries for analysis.

Figure 3. Examples of eco-picture diaries for analysis.

Another fourth-grade student wrote:

I went to a city centre today. I found a lot of garbage between the buildings, and the place smelled worse than where I live. Some elderly people with green numbers were cleaning up the trash there. I wish there were an AI robot that looks like the Asura statue that I saw in a book the other day. Instead of the elderly, it would pick up garbage from morning until night. I also think it would be nice if there were such an AI robot that would use a lot of hands to quickly collect the trash to clean the city and impart a pleasant fragrance. The most important thing, however, is that each of us keeps the roadside clean and litter free.

In this eco-picture diary, identifying and analysing the issue of littered garbage and its bad smell on the road is an ecopedagogical aspect and creation and use of an AI robot that resembles the Asura statue with several hands to collect the trash is backcasting, while the whole process is reflective. In this student's eco-picture diary, the image reflects both the current issues and future solutions (, middle).

Although the eco-picture diary is considered a place-based education tool whose purpose and theme is to reflect on the future of Yokohama, several students go beyond the local context of Yokohama and describe issues and solutions in wider contexts. For instance, one third-grade student wrote (, right):

To stop global warming, what a single person can do alone is very limited, but if we act together, our power will be amazing. To encourage eco-activities, it would be nice if we could record them on a smartphone and view the health meter of the earth at a glance. If it evolved into a game wherein we could raise a character called ‘Little Earth’ by feeding on eco-activities, we could enjoy them even more. As we continue doing what we can for the environment, the earth will become increasingly healthy. The Olympic and Paralympic Games will take place next year. People from all over the world will come to Japan and also to Yokohama. I would like to expand the circle of these kinds of small eco-activities from Yokohama to the rest of the world and make the earth even healthier by leveraging people's power.

Interviews

As will be shown below, respondents viewed the eco-picture diary as a place-based education tool in the context of ecopedagogy, backcasting and reflective learning.

Place-based education

A member of the Recycle Design staff reported that one of the benefits of the eco-picture diary is that it enables students to discuss local and global socio-environmental issues with their family members:

Even if students are not interested in socio-environmental issues in Yokohama and elsewhere at first, they are happy to share their opinions about these issues with their family members. Likewise, even if their family members are not interested in addressing these issues, they will listen to the children in part because the eco-picture diary is a school assignment. Also, employees from local companies will be involved in evaluating eco-picture diaries and participating in awarding ceremonies for those that are highly valued.

The president of a Yokohama-based company added:

We evaluate the diaries and hold an award ceremony for the most highly valued ones at local elementary schools. I feel that the diaries have a ripple effect. In my company, for example, in evaluating the eco-picture diaries, all employees write comments, explaining why they selected the ones they did. Our employees, including me, create our own eco-picture diaries as well. The process helps us understand how we should address local socio-environmental issues.

With regard to involving stakeholders, a member of the city hall personnel said:

Through occasions such as exhibitions that are held in various places such as JICA Yokohama or at UNESCO Associated School conferences, other local citizens also have an opportunity to look at the eco-picture diaries and become aware of local socio-environmental issues and the possible solutions to address them.

Given their focus on addressing local socio-environmental issues in Yokohama, these comments indicate the characteristics of the eco-picture diary as a place-based environmental education tool.

Ecopedagogy

A Recycle Design staff member conveyed a child's concern that current world trends, including SDGs, prioritize economic aspects of development over ecological and social ones.

Due to the long working hours as a result of the excessive emphasis on economy, for example, when asked to write and draw a desirable future in the eco-picture diary, one first grade student wrote, ‘I would like a world where parents and children can have meals together at home’, and accompanied these words with a drawing of a family having a meal together. We adults should not let a young child say something like that. Yet, without the eco-picture diary, we would not even know what children think.

A member of the city hall personnel reported that children are fully aware that the current situation needs to be changed:

We hold annual environmental conferences in collaboration with Recycle Design for children who have submitted the eco-picture diary and ask them to discuss what they want the future of Yokohama to be like. I asked them why they decided to participate in the conference. They told me that the way things are now is not acceptable and has to be changed. For example, they said, ‘Yokohama is clean but does not have enough green spaces. What if aliens observe the city from the universe? They would not like to come visit us’.

These statements accentuate ecopedagogical aspects of the eco-picture diary in that the situation/world needs to be transformed. The same member of the city hall personnel continued:

Although they looked nervous at first, the children looked happy after the [aforesaid] conference. We asked them why they were so happy. They replied that it was ‘fun’ that adults listen seriously to their ideas about how to solve socio-environmental problems. Children have a lot of things to elaborate on and seek opportunities to tell them to adults. The eco-picture diary is a crucial means of expressing their thoughts and ideas.

Reflective learning

A primary school principal reported that one of the advantages of the eco-picture diaries is that it has both pictures and texts:

It is a lot of work for children to do both. The eco-picture diaries ask children to identify reasons why the current socio-environmental issues exist and to propose solutions through pictures as well. We can tell that children really think hard before writing down or drawing their thoughts. This reflective process enables them to acquire critical thinking skills that are necessary to deal with not only current but also future issues.

These statements suggest that the eco-picture diary is a reflective learning tool.

Backcasting

A Recycle Design staff member viewed the eco-picture diary as a backcasting approach in that children write and draw on the theme of a desirable future city:

The eco-picture diaries reflect on the clear action plans of what children and other stakeholders do towards an ideal future. These action plans are elaborated on by family members and thus become a stronger and more sustainable driving force than individual action plans. After all, what children discuss with their family members, including socio-environmental issues and strategies to address these issues, becomes a family commitment.

The Research Design staff continued that the eco-picture diary becomes a proposal from children to adults:

The ‘messages’ from children conveyed through eco-picture diaries contain valuable suggestions for the future city planning authorities to work towards achieving SDGs by 2030 through a transformation of the social system.

A primary school teacher concluded:

To make the most use of the eco-picture diary as children's proposals to achieve SDGs and realize sustainable futures, the number of adults who listen to what children would like Yokohama to be like in the future should increase. If no one is to be left behind, as claimed by the SDGs, we have to listen to children as well. Unfortunately, however, adults and children are two different species now. We adults believe that children do not understand anything. Yet, we have to be aware that they do not express their opinions freely because they still feel that adults are indifferent to their opinions.

DISCUSSION

Findings suggested that our hypothesis that the eco-picture diary is a place-based education tool in combination with ecopedagogy, reflective learning and backcasting approaches is accepted: with the eco-picture diary, students maintain to address socio-environmental issues in order to achieve an ideal future society through the reflective process. However, we further need to relate the findings from the case to theory (Powers's change theory to place-based education) to examine how the diary could impact the society (e.g., its potential contribution to the success of the G-30 programme and the designations of a series of national and international eco-initiatives and others beyond the context of Yokohama). As explained above (), the theory assumes that place-based education first helps students become knowledgeable and then causes them to develop an attachment to the place, such as connecting with schools and their communities, acquiring skills to act, and finally enhancing self-efficacy. These constructs guide students to civic engagement, community participation, and stewardship; broaden and deepen community social capital; and finally establish healthier social and natural communities. Findings from the current research can be accommodated in this theory as below:

Understanding of place, knowledge and experience

Place-based approaches may help students understand and interact with their environment (Schild, Citation2016; Smith, Citation2007). With the eco-picture diary, students have now become more knowledgeable of socio-environmental issues mainly through interactions with their local environment as well as with family members and other stakeholders, which reinforce their learning. These family members and other stakeholders may in turn become motivated to be more aware and may learn from students or seek information themselves to teach or discuss socio-environmental issues with students.

Attachment to place (attitude)

As a result of the interactions with the local environment and stakeholders, students come to care more about their place (Hidalgo & Hernández, Citation2001; Lichrou et al., Citation2014). The involvement of the private sector in evaluating and selecting eco-picture diaries for awards connects private companies with local elementary schools. That participation itself is a contribution to the local community, as students may become motivated to gain recognition, which inculcates in them positive attitudes towards the local environment and community. The eco-picture diary also facilitates the emission of SDG-related information at the citizens’ level: The exhibitions of eco-picture diaries that take place in JICA Yokohama and UNESCO Associate Schools are such examples. This widespread public exposure and recognition of eco-picture diaries may also help students and other stakeholders to have positive attitudes.

Opportunities for school community interplays

Place-based education focuses on students’ connections to their communities, which helps promote citizenships (Howley et al., Citation2011). As explained in the previous section, through such occasions as awarding ceremonies and exhibitions, various stakeholders have the opportunity to become involved in eco-picture diaries. Overall, eco-picture diaries help students and stakeholders proactively participate in SDG-related activities and contemplate how to realize a sustainable society by raising awareness of and addressing socio-environmental issues.

Skills to act, knowledge and practice

Place-based education helps develop skills such as reflection, critical thinking, and problem solving while also providing opportunities for cooperative and participatory decision-making experiences. The eco-picture diaries ask students the reasons as to why the current socio-environmental issues exist and how to address them. As a result, students may acquire the above-stated skills and experiences necessary to work towards achieving SDGs.

Enhanced competency and self-efficacy

With these skills and experiences acquired, students are more likely to be engaged in community activities because they gain a personal sense of competence and perceived self-efficacy in their collective competence (Chawla & Cushing, Citation2007). Additionally, by contemplating what they can do to realize an ideal society in the future, students naturally form clear action plans towards achieving the goals. Making these action plans with family members and other stakeholders helps them acquire enhanced competence and self-efficacy and become conscious of being civic members of the society.

Civic engagement, community participation and stewardship

A sense of place developed from an attachment to a place is fundamental to enhance positive attitudes towards the local community and foster environmental and civil engagement. Varela-Losada et al. (Citation2016) notes than schools’ collaboration with communities enables responsibility towards the environment. Relevant skills and experiences also foster a sense of connection to the community, and serves as civic education to better manage the local environment. Hence, the eco-picture diary also serves as civic education for enhancing this collective environmental action by involving several stakeholders at multiple levels.

Broadening and deepening community social capital towards healthier social and natural communities

Eco-picture diaries involve various stakeholders at different levels who play a proactive role: students as creators of eco-picture diaries; family members as their co-creators; and teachers, local governments and companies as coordinators. This is how community social capital becomes widespread and pervasive through the use of eco-picture diaries. In this way, social capital's extensive cohesive networks are iteratively broadened and deepened, thereby ensuring systemic changes towards healthier social and natural communities (Western et al., Citation2005). This is because ‘communities with higher levels of social capital and its components are more likely to act for the collective good around issues related to environmental management and sustainability’ (Krasny et al., Citation2015, p. 4). This collective action with high social capital involving various stakeholders at different levels could result in several Yokohama residents addressing the 3Rs to reduce garbage waste production in the G-30 programme, make efforts to reduce greenhouse gases, and achieve SDGs. Thus, Yokohama has been selected for the following eco-initiatives: the Environmental Model Cities, the Environmental Future Cities, the SDGs Future Cities, and the Eco2Cities.

CONCLUSIONS

Through the application of the change theory for place-based education, the current research illustrates that place-based environmental education tool like the eco-picture diary can be used to devise effective interventional programmes and formulate or improve policies from the perspective of promoting environmental education and eco-initiatives. The eco-picture diaries also offer a means by which changes to the environment can be closely observed and documented over time, helping individuals and society keep track of the progress made towards achieving SDGs. Furthermore, as indicated by the adoption of eco-picture diaries in other Japanese as well as international cities, the concept of the eco-picture diary can be extended to much wider contexts.

The current study has some limitations. First of all, considering its nature, the sample-size is small for a rigorous statistical analysis. Relevantly, no students were included as formal research participants, while they, as well as teachers, should have ideally been the most distinguishing protagonists in environmental education. We should know the opinions of both students and teachers on the eco-picture diary, including the perceived strengths and weaknesses. Therefore, future research should include a quantitative questionnaire study distributed among a large sample, followed by qualitative focus group interview studies to further analyse its findings to improve the quality of the eco-picture diary as a place-based environmental education tool. Also, case studies similar to the current one should be conducted in other places where the eco-picture diaries have been used in order to assess its possible impacts and explore and determine its potential role in promoting eco-initiatives in different contexts.

ACKNOWLEDGEMENTS

The authors thank Mr Togawa Takanori, Mr Kazuyoshi Shimizu and Ms Maika Katou from Recycle Design; Mr Kenji Hosaka and Mr Syuhei Okuno from Yokohama City Hall; Mr Hidenobu Kawahara from the Taiyo Jyuken; and Mr Yasushi Suzuki from Kozukue Elementary School.

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the authors.

Additional information

Funding

The study was supported by the Japan Society for the Promotion of Science [grant number JP19K12451].

REFERENCES