What makes, therefore, an individual adopt environmentally responsible behavior? What makes someone think critically and have environmental awareness in order to recognize his or her part in environmental protection? Hwang et al. [
25] stated that greater environmental knowledge does not necessarily translate into environmentally responsible behavior, and Ishak [
26] found that the environmental knowledge that is provided to students through school programs does not suffice. Moreover, other similar studies have revealed that the relationship between environmental knowledge and environmental attitude is a weak one [
27,
28]. Citizens should, however, develop critical thinking and, most importantly, understand their responsibilities and exercise their rights as both responsible citizens and responsible consumers [
29]. Parents and the wider family environment play a significant role in shaping responsible citizens because their attitudes and values, being more important than knowledge, exert great influence on children’s attitudes [
30]. In addition, schools and environmental education programs not focusing exclusively on the acquisition of environmental knowledge but instead emphasizing emotional and psychomotor objectives comprise another notable factor in shaping pro-environmental behaviors and environmentally responsible attitudes among students. Moreover, in order to enable citizens to understand the danger resulting from the scarcity of energy sources, raise their environmental awareness, and enhance their participation in pro-environmental actions, society should ensure that individuals receive the necessary relevant information [
31].
2.2.1. Education on Sustainable Development
Global concerns about environmental issues have increased the interest of the public, and there is consensus on the need to shape environmentally conscious citizens. As school reflects the problems our society faces, it assumes the important role of changing citizens’ thinking and promoting environmental regulations while encouraging individuals to adopt environmentally responsible behavior. In other words, education can help shape environmentally responsible behavior, raise environmental awareness, and encourage energy saving. The strong link between environmental education and environmental communication can enable the dissemination of environmental information more effectively with the sole aim of promoting environmental sustainability. That is because environmental communication is the process that can promote more appropriate environmental decisions and legislations as it is a wider term than environmental education [
32].
The future citizen should be educated both inside and outside the framework of school in order to have awareness about the environment. To that end, suitable educational programs are required so that students acquire critical thinking about climate change and other environmental issues that are caused by human activities [
33]. At the same time, it has been argued that through education on sustainability and on the environment young people may become the leaders of tomorrow who will contribute to research on environmental protection [
34]. For this reason, the content of this type of education should contribute to shaping positive attitudes, especially towards the management of the natural environment [
35].
The emergence and development of environmental education was linked to the environmental movement of the 1960s and 1970s. In the 1970s, an unprecedented mobility occurred in terms of environmental education, with the most important events being the International Workshop on Environmental Education conducted in Belgrade (1975) and the Intergovernmental Conference on Environmental Education held in Tbilisi (1977). From the 1990s and onwards, environmental education has been defined by the notion of sustainability, which integrates the environment, society, and economy [
36]. More than four decades after the emergence of environmental education, the sustainable school has transcended the tight context of “green” school and is closely related to quality education while it seeks to transform school into a community of interaction and to experience exchange among all participants. Environmental awareness can be raised through nonformal education, that is, through the dissemination of environmental knowledge, news, or discussions as well as through the information the students acquire from the media in their everyday lives. In particular, the greatest part of the population has access to the media and resorts to them for their information. The power of the media is considered immense not only because the media inform citizens about the major environmental issues but also because they are able to shape public opinion. This can prove to be quite useful, especially when it comes to encouraging citizens to participate in programs of managing and protecting natural resources at the local level [
37]. For this reason, journalists must receive environmental education in order to cover environmental topics as well as to present the actual socioeconomic aspects of environmental issues and possible action paths that, in turn, can raise public environmental awareness [
32]. All these were articulated in the Intergovernmental Conference on Environmental Education in Tbilisi, where it was stated that “Environmental education must be offered to people of all ages and at the levels of both formal and non-formal education”.
The lack of relevant information, however, has a negative effect on shaping individual consumers’ behavior [
26]. In a study carried out in Hong Kong, one of the most polluted cities in the world, it was found that although the majority of students believed that it was their duty to protect the environment and recycle at both school and home, their actual behavior deviated from their stated behavior [
38]. In addition, more than 90% of university students in Chile sought to save energy and water by switching off the lights and turning off the tap, whereas only a few bought organic products [
39]. In another study, it was indicated that 60% of students attending the last grade of primary school and 80% of students in the last grade of secondary school were knowledgeable about air pollution but neither recognized the need to reduce the use of fossil fuels nor preferred public transport [
40]. In a large-scale study investigating the perceptions of 3708 school students in New York, it was revealed that a high share of students (by 73%) was concerned about energy issues but considered themselves as having inadequate knowledge and skills to help resolve them [
41]. In addition, most students in a Turkish school were worried about environmental problems but only 12% of them were members of an environmental organization [
42].
2.2.2. The Role of Family in Shaping Environmental Attitudes
At this point, it should be pointed out that students come to school with a system of values and attitudes that has already been shaped by their family environment, while it has also been shown that family plays a primary role in shaping students’ attitudes. Interestingly, a study in Greece revealed that even though students express interest in the environment and its problems, their environmental attitudes tend to diminish over time [
43] because the other family members do not express pro-environmental attitudes on a daily basis. A similar observation was made in a study carried out in Great Britain in which students stated their interest in environmental protection but found it difficult to keep on recycling since their parents were not always willing to recycle [
44]. In another study conducted in the Netherlands, it was indicated that the messages the students received from school and family were often conflicting, as most students’ families owned at least one car and students rarely covered any distances on foot [
45]. Likewise, in New Zealand only 3% of female and 28% of male students aged 13–17 years used their bicycles to go to school, even though their houses were located fewer than four kilometers away from their school [
46]. In Malaysia, primary and secondary students’ parents used cars to make sure their children got to school safely despite acknowledging that walking and cycling are beneficial to health [
47]. It can be stated that if the family exhibits a negative environmental behavior, children are less likely to express pro-environmental behaviors while existing environmentally friendly behaviors can diminish.
Environmental behavior starts to develop in childhood, and, for this reason, parents should provide their children with the appropriate experiential experiences because stimuli and experiences help the child to develop values, attitudes, and behaviors. According to Chawla [
48], habits like family walks in the forest or activities in nature can help parents serve as role models and encourage children to shape positive attitudes towards the environment. A relevant study indicated that children are affected by experiences in nature such as hiking, camping, and fishing, and these experiences can induce them to become environmentally responsible citizens in the future [
49]. In addition, the long-term exposure to nature during summer camping connects children emotionally to nature and prompts them to develop strong environmental beliefs and eventually adopt environmentally friendly behaviors [
50]. In addition, primary school students in New York reported that they collect or recycle the garbage they produce during nature excursions with their parents [
51]. The same observations were made in Bulgaria where primary school students in urban and semi-urban areas expressed their preference for activities in nature that require direct involvement with environmental protection, such as shaping and maintaining green spaces or planting and taking care of trees [
52]. Parents who realize the role of the family in shaping environmentally conscious citizens [
53] can provide their children with experiences to help them come in contact with the natural environment, since through this contact children are expected to form positive environmental attitudes and behaviors [
10].
Parents’ consumer behavior and purchase decisions are also pedagogical actions, as it has been shown that parents serve as examples for children. Indicatively, it is interesting that girls tend to imitate the environmental behavior of their fathers while boys tend to imitate their mothers [
54]. Moreover, parents’ personal participation in environmental activities such as recycling or purchasing products contained in recyclable packages can prompt children to commit to environmental activities [
55]. In addition, Walker et al. [
56] confirmed that the family’s environmental behavior in terms of recycling, consumption patterns, as well as energy and water saving, exerts great influence on children’s environmental attitudes. The same conclusion was drawn by Palmer [
57], who noticed that children’s participation in pro-environmental actions and activities like recycling and water saving is shaped by the effects of parents’ direct and indirect actions. The effect of family actions on the child was also confirmed by a study in which Greek students reported that they recycle packages and batteries because their parents were also doing so [
58].
On a general note, knowledge, awareness, and the ability to evaluate environmental problems can drive individuals to participate actively in the improvement and protection of the environment. The desire to act for the environment, however, depends on a plethora of personal factors. Besides cognitive experiences, emotional experiences and personal factors like creating a family and acknowledging the ecological problem can induce individuals to act for the environment. In a study conducted in the United Kingdom, it was observed that individuals who had their first child and were already concerned about the environment before having their own family, expressed a desire to adopt pro-environmental behaviors such as switching off the lights when leaving a room, buying products contained in recycled paper, or covering short distances on foot [
59]. Moreover, the same study revealed that young mothers are likely to opt for environmentally friendly detergents, motivated by their wish to protect their children from dangerous chemical substances. Furthermore, families in Greece were willing to invest in renewable energy in order to contribute to environmental protection and to pay less money for electricity and water bills [
60]. In Portugal, families with children had a greater inclination to participate in recycling programs in which they would be entitled to some discount if they recycled packages at the supermarket. However, the same study showed that childless couples and unmarried individuals were not inclined to participate in such programs [
61]. According to Gramm-Hanssen [
62], in Denmark adolescents consume 20% more electricity than their parents during the time they live with their parents, but their energy and water-saving patterns change when they begin to pay their own bills. Another study in Denmark showed that even though parents and children have similar pro-environmental behaviors like opting for organic products, parents are more committed to environmental protection and seek to save energy [
63].
If we wish to protect the environment, we need to transform our environmental beliefs into action and move in the direction of sustainability by reducing the household’s impact on the environment. In addition, it is essential to enhance environmental programs at school [
64]. That is because children play a catalytic role and can promote environmental knowledge and behavior among family and society members [
65]. Hence, encouraging students to attend such programs can have far-reaching effects on society. In terms of adults, most people claim that they are interested in the environment, and therefore it is up to them to understand the environmental catastrophe and decide what they want for future generations [
66].
Having discussed the existing information and findings from the relevant literature, the significance of the topic of this paper has been highlighted. That is, in view of the relevant literature it is clearly shown that children shape environmental beliefs and attitudes in response to the stimuli they receive from their families and school. At the same time, future generations will play a critical role in the protection of our planet, and this role underlines the importance of dedicating more attention and resources to investigating their environmental attitudes. Hence, this study can make a significant contribution to this direction as it seeks to examine the environmental views and behaviors of both students and their parents. The findings will not only serve to confirm or contradict the findings of previous research works but will also add further insights. In specific, the contribution of school to students’ environmental attitudes will be investigated and, at the same time, students’ attitudes can be compared to those of their parents.