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Journal of Environmental Science and Public Health
Volume 1, Issue 2 Review Article
Theories and Concepts for Human Behavior in Environmental
Elijah A. Akintunde*
Department of Environmental Management, Institute of Life and Earth Sciences, Pan African University, University
of Ibadan, Nigeria
*Corresponding Author: Elijah A. Akintunde, Department of Environmental Management, Institute of Life and
Earth Sciences, Pan African University, University of Ibadan, Nigeria, Tel: +2348068241066; E-mail:
Received: 31 July 2017; Accepted: 22 August 2017; Published: 30 August 2017
This paper reviews vital behavioral and environmental theories that are capable of nurturing pro-environmental
citizenry. Theories are developed to explain, predict, and enhance the understanding of phenomena. Theories
challenge and extend the frontiers of knowledge within the boundaries of critical bounding assumptions. Theories
vary in their development on the basis of the concepts and methods employed and empirical test undertaken. The
testability of a theory is one of its essential feature. An integrative application of different behavioral and
environmental theories could prove to be invaluable in solving contemporary environmental problems. The models
and theories reviewed in this paper include; primitive models (behavioural change model, environmentally
responsible behaviour model, reasoned/responsible action theory), planned behaviour theory, environmental
citizenship model, model of human interaction with the environment, the value-belief-norm theory of
environmentalism, health belief theory and diffusion of innovation model. This paper concludes that none of these
theories can independently entirely explain human-environment interaction, but a combination of these theories will
undoubtedly provide further insights and possible solutions to the increasing 21st century environmental problems
posed by humans and her technology.
Keywords: Environmental Theory; Behavioral theory; Human-Environment interaction; Environmental
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For several centuries, the environment has provided habitation for humans and numerous organism but the insatiable
needs of humans have driven them to devise strategies for survival and adaptation. Several of these strategies,
especially technology, have had direct and indirect negative consequences on the immediate environment, resulting
in the degradation of the latter. Many of today's environmental problems are increasingly the outcomes of individual
actions, personal consumer decisions, and the activities of small and large businesses. Nevertheless, the fact remains
that the healthiness of the world’s economy and people is inextricably bound to the wellbeing of the environment.
This implies that now, much more than previously, there is a greater need to understand patterns, connections,
systems and root causes of the degrading environment. A very strong tool for nipping the 21st century environmental
problems, which are becoming lot more alarming in the bud, is environmental education. One veritable tool for
achieving this feat is a proper understanding and the application of behavioural models and theories.
Theory is a well-established principle that has been developed to explain some aspect of the natural world. He stated
further that theories arise from observations and testings that have been carried out repeatedly and they incorporate
facts, predictions, laws, and tested assumptions that are widely accepted. The theoretical framework thus provides a
platform for expressing a theory of a research study. It presents and describes the theory that explains why the
research problem under study exists .
There is a close relationship between concepts and theories, such that, the constituents of a theory are concepts and
principles. A concept is a symbolic depiction of an actual thing. It is the building block of the theory. The main
difference between the theoretical and the conceptual framework is that a conceptual framework is the idea of the
researcher on how the problem of the research will have to be explored. This is established on the theoretical
framework, which lies on a much broader scale of resolution. The theoretical framework thrives that have been
tested repeatedly over time that express the findings of numerous investigations on how phenomena occur. This
framework provides a general representation of relationships between things in a given phenomenon. On its part, the
conceptual framework describes the relationship between specific variables identified in the study. It furthermore
outlines the input, process and output of an entire investigation . A model is a blueprint for action, describing
what happens in reality in a universal way. Models are used to describe the application of theories for a particular
case. In a nutshell, theories are well-established principles developed to elucidate dimensions of the natural world,
they are made up of concepts and applied by employing models.
A theory presents a systematic way of understanding behaviors, events and/or situations. It is a set of interrelated
definitions, concepts, and propositions that predicts or explains events or situations by specifying relationships
among the variables . The notion of generality, or broad application, is important. Thus, theories are by their
nature abstract and not content- or topic-specific. Although numerous theoretical models can express the same
general ideas, each theory uses a unique vocabulary to articulate the specific features considered to be significant.
Additionally, there is a variation in theories in the extent to which they have been developed conceptually and tested
empirically. A very crucial feature of a theory is its ability to be tested . Numerous theories and concepts exist for
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understanding Human Behaviors in Environmental Preservation. Few of these theories are reviewed below
alongside their application to environmental preservation. These theories and concepts enhance further
understanding as to why people participate in different environmentally influencing behaviors. It is however evident,
that no single theory, gives a perfect explanation of the complete interactions and relationships among variables
influencing Human Behavior in Environmental Preservation. Models and theories to be reviewed include the
following; Primitive models (Behavioural change model, Environmentally Responsible Behaviour model,
Reasoned/Responsible Action theory), Planned behaviour theory, Environmental Citizenship model, Model of
Human Interaction with the Environment, The Value-Belief-Norm Theory of Environmentalism, Model of Diffusion
of innovation and Health Belief Theory.
To properly examine the concept of Environmentally Responsible Behavior (ERB) there are 3 theories that can aid
its understanding . These are the Primitive models, Model of environmentally responsible behaviour proposed by
Hines et al.  and Ajzen and Fishbein’s theory of reasoned/responsible action .
1.1 Primitive models
Primitive models are the traditional, ERB field’s precursors entertained beliefs that were not founded on rigorous
experimentation, but rather on several assumptions interpreted from previous works . These models were founded
on the assumptions that educating the public on various ecological and environmental issues could alter human
1.2 Behavioural change model
This reasoning was directly associated with the supposition that if people were better informed, they would become
more aware of environmental problems and consequently, would be motivated to behave in an environmentally
responsible manner. Many other similar models, as will be discussed subsequently, linked knowledge to attitudes
and attitudes to behaviour. Thus, as evident in Figure 1, when knowledge increases, environmentally favourable
attitudes that lead to responsible environmental actions are developed . Figure 1 illustrates the relationships
emanating from the models proposed at that time .
Figure 1: Behavioural Change Model .
Nevertheless, ulterior research refuted the arguments of those that saw the principles of human behavioural change
in this model. As a result of this, the legitimacy of such simplistic linear model was not recognized or supported for
a long time . Researchers then focused their attention on a hypothesis that they would quickly verify and accept
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over the course of the following years: that a multitude of variables interact in different degrees to influence the
embracing of environmentally responsible behaviour.
The behavioural model, though very simplistic, provides a base for the consideration of possible relationship
existing between environmental knowledge, environmental awareness and attitude and how these can translate to
action or inaction. A good knowledge of environmental variables may not necessarily imply good and sustainable
environmental behavior. On the other hand, lack of environmental knowledge or awareness may also not necessarily
imply a poor environmental practice. Therefore other intervening factors like the Locus of control, intention to act
and personal responsibility need to be considered. While a line of possible relationship can be deciphered through
this model, reality is far more complex than this linear trend, hence a more advanced model, incorporating this line
of relationship is needed to offer a succinct explanation of the interacting variables of human behavior in
1.3 Theory of environmentally responsible behavior (ERB)
The ERB theory was proposed by Hines, Hungerford and Tomera . The model argues that possessing an intention
of acting is a major factor influencing ERB. The Model of Responsible Environmental Behavior indicates that the
following variables; intention to act, locus of control (an internalized sense of personal control over the events in
one’s own life), attitudes, sense of personal responsibility, and knowledge .suggested whether a person would adopt
a behavior or not.
Figure 2 presents the interactions likely to develop ERB. This model considers the major variables that play a part in
the individual process of ERB adoption. According to the model, the internal control centre has a very considerable
impact on the intention of acting, which determines an individual’s ERB substantially. This model also highlights
the existence of a relationship between the control centre, attitudes of individuals and their intention to act. The
authors asserted that the control centre directly affects an individual’s attitudes which can lead to an improved
intention of acting and improved behaviour. Thus, the theory concentrates more on existing interactions between
parameters that influence a person’s behaviour than on the singular impact of a single variable.
Figure 2: Theory of Environmentally Responsible Behavior (ERB) .
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In waste management processes, no single factor is responsible for current behaviors or sufficient to initiate behavior
or cause behavior change. For instance, people pile up their waste materials in the middle of the streets in large cities
like Ibadan, Port Harcourt, Jos etc., despite regulations from waste management authorities, prohibiting these acts.
Many of these flouters do so at odd hours when law enforcement agencies are not available, others are influenced to
indiscriminately dump these waste materials because they see others doing so, yet some still find ways of decently
disposing off their waste materials.
From the model in Figure 2, knowledge alone is grossly insufficient to act responsibly towards the environment,
while some individuals’ knowledge on the environment and its regulations could prompt them to have a good
attitude which could translate to good intentions to act, other individuals may go through the internal and external
control, such as being influenced by the actions of others or holding strongly to a belief to act rightly despite the
actions of others towards the environment. Although, separate constructs of attitudes, control center and intention of
acting may not be enough for creating an intention to act, united under one overarching concept they become a base
on which predispositions for pro-environmental behavior are formed.
1.4 Reasoned/Responsible action theory
This theory was proposed by Ajzen and Fishbein . The Reasoned Action Theory assumes that human behavior is
grounded in rational thought, and the model uses the Principle of Compatibility, which predicts that attitudes reflect
behavior only to the extent that the two refer to the same valued outcome state of being (evaluative disposition) .
The theory stipulates that the intention of acting has a direct effect on behaviour, and that it can be predicted by
attitudes. These attitudes are shaped by subjective norms and beliefs, and situational factors influence these
variables’ relative importance. Reasoned Action Theory accounts for times when people have good intentions, but
translating intentions into behavior is thwarted due to lack in confidence or the feeling of lack of control over the
behavior . Figure 3, illustrates these relationships graphically.
Figure 3: Theory of Reasoned/Responsible Action .
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In a study published in 1995, Glenda Hanna tried to verify the coherence and validity of this Ajzen and Fishbein’s
model . Focusing on factors preceding the adoption of ERB, proposed a model inspired by that of Ajzen and
Fishbein, the model however took the influence of previous experiences with nature into account. Shown in figure 4,
preceding factors, for instance, past experience and demographic factors, interact with an individual’s knowledge
and ability to act. This interaction contributes to developing environmentally favourable attitudes towards relevant
issues that in turn lead to reinforcing the intention to act responsibly. Finally, these intentions are given concrete
expression through the individual’s specific actions .
Figure 4: Conceptual model for preceding factors of ERB .
Figure 5: The Theory of Reasoned Action .
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The theory of Reasoned Action is important to the extent that it provides a foundation for the understanding of why
people may not act in favor of the environment, despite having good intentions either due to their lack of confidence
or for the reason that they feel they lack control above the behavior. Furthermore, as asserted by Azjen and Fishbein
, on the basis of different experiences and different normative beliefs, people may form different beliefs on the
consequences of performing a behavior. These beliefs, in turn determine attitudes and subjective norms which then
determine intention and the corresponding behavior. As illustrated in figure 5, better understanding of a behavior
can be gained by tracing its determinants back to underlying beliefs, and thus influence the behavior by changing a
adequate number of these beliefs.
The model gives further explanations as to how good intentions for the environment are not enough in themselves to
propel an action. Attitudes and subjective norms, as seen in figure 5, contribute to behavioral intentions, which can
be used to predict behavior. Subjective norms in this context denote an individual’s beliefs about whether their
society’s members—family, friends, and co-workers—believe that the individual should or should not participate in
a specific behavior. The social environment has been proven to mediate the consequence of environmental attitude
on environmental behaviors . Similarly, Hanna’s proposition gives a foundation for the incorporation of
demographic characteristics as they influence individuals’ attitudes towards the environment, positively or
2. Theory of Planned Behavior
The Planned Behavior Theory was proposed by , this model of planned environmental behavior considers the
intention to act and objective situational factor as direct determinants of pro-environmental behavior. The Intention
itself is considered summarizing the interplay of cognitive variables which include; (knowledge of action strategies
and issues, action skills) as well as personality variables (locus of control, attitudes and personal responsibility).
The Planned Behavior Theory grew out of the Theory of Reasoned Action and it suggests that human behavior is
influenced by three belief constructs: beliefs about consequences; expectations of others and things that may support
or prevent behavior. A strong premise of the theory is that, at the conceptual level, links among influences on
behavior and their effects are captured through one of the components of the model or relationships in the model.
The application of this model to this study is that, the model provides further explanations into the connection
between knowledge, attitude, behavioral intention and actual behavior as they influence waste management
practices. Knowledge is not a specific component in the model but “attitudes are a function of beliefs” ; since in
this context, beliefs refer to knowledge about a specific behavior. Azjen’s model therefore, allows for representation
of cognitive elements through affective elements by their influence on beliefs. For instance, when a person
understands that he/she has control over a certain situation, his/her behavioral intentions reflect this understanding as
much as his/her beliefs as to the outcome of a certain behavior.
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3. The Environmental Citizenship Model
This model was proposed by Hungerford and Volk . The Hungerford Volk Model arrays three stages of
educational involvement ranging from first exposure (entry) to real involvement (empowerment), and then suggests
that each stage has certain knowledge and attitude characteristics.
In the Environmental Citizenship Model, Hungerford and Tomera grouped the variables that influence whether a
person takes action into three categories, as evident in Figure 6. These are;
Entry-level variables—such as general sensitivity to and knowledge of the environment
Ownership variables—including in-depth knowledge, personal commitment, and resolve
Empowerment variables—such as action skills, locus of control, and intention to act
Figure 6: Environmental Citizenship Model .
This theory is vitally important because of its potential to evolve a citizenry that is touched with the feelings of the
environment, who will bear its burdens to the extent of possessing skills that can enable them act in the interest of
the environment. One popular environmental variable for instance is that of solid waste. This theory could become
applicable such that whether it be purchase of goods or undertaking of services, one thing will be paramount in the
minds of the citizens; sustainability of the environment. Similarly, when it comes to the generation, disposal and
and skill in
Entry Level Ownership
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management of wastes; citizens will be most concerned with a sustainable manner of waste generation and
management hinged on avoidance, reduction, reuse and recycling.
In application, the Hungerford Volk Model identifies numerous variables required to be an environmentally literate
citizen. Secondly, the model provides a basis for the classification and separation of environmental literacy variables
according to their importance either as a major variable or a minor variable. Also, the model provides a
framework/scale to identify the level of an individual in the literacy ladder, such that one can tell if a citizen is in the
entry level, ownership level, empowerment level or has grown to become an environmentally responsible citizen.
4. Model of Human Interaction with the Environment
The model of human interaction with the environment was proposed by Hammond in 1995 . This model
describes four interactions between human activity and the environment. These are;
4.1 Source: From the environment, people derive minerals, energy, food, fibers, and other natural resources of use
in economic activity, thus potentially depleting these resources or degrading the biological systems (Such as
soils) on which their continued production depends;
4.2 Sink: Natural resources are transformed by industrial activity into products (such as pesticides) and energy
services that are used or disseminated and ultimately discarded or dissipated, thus creating pollution and wastes
that (unless recycled) flow back into the environment;
4.3 Life support: The earth's ecosystems—especially unmanaged ecosystems—provide essential life-support
services, ranging from the breakdown of organic wastes to nutrient recycling to oxygen production to the
maintenance of biodiversity; as human activity expands and degrades or encroaches upon ecosystems, it can
reduce the environment's ability to provide such services;
4.4 Impact on human welfare: Polluted air and water and contaminated food affect human health and welfare
Figure 7: Model of Human Interaction with the Environment .
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This model expresses how the human activities bear imprints on the environment. While this model concerns itself
with the entirety of human activities, knowledge of interacting variables in the model enhances understanding of
possible outcomes for different behaviours within the environment.
5. The Value-Belief-Norm Theory of Environmentalism (Paul Stern 1999)
The Value Belief Norm (VBN) Theory was proposed by Stern . The value-belief-norm (VBN) theory of
environmentalism has its roots in some of the above theoretical accounts linking value theory, norm-activation
theory, and the New Environmental Paradigm (NEP) perspective through a causal chain of five variables leading to
behavior: personal values (especially altruistic values), shown in figure 8. This chain of five variables, grouped into
categories of values, beliefs, and norms; influences whether a person is likely to adopt some environmental
Figure 8: Value-Belief-Norm Theory of Environmentalism .
VBN theory measures from other theories to account for three types of nonactivist environmentalism: these include
environmental citizenship, private-sphere behavior, and policy support (willingness to sacrifice) . The discovery
was that the VBN cluster of variables was far stronger in predicting each behavioral indicator than the other theories,
even when other theories were taken in combination . On the VBN, behavior that will be environmentally
significant is dauntingly complex, both in its variety and in the causal influences on it. Stern affirmed that, while a
general theory is still yet to be arrived at, enough is known to present a framework that can increase theoretical
coherence. This framework will include typologies of environmentally significant behaviors and their causes and a
growing set of empirical propositions about these variables .
The Value Belief Norm theory, among the hitherto discussed theories, provides a more elucidative explanation of
the human- environment interaction and how these interactions can affect each other, taking into consideration a
relatively ample number of variables responsible for cause and action. Furthermore, the theory is well applicable to
this study because:
The Value Belief Norm approach offers a good account for the causes of the general predisposition toward
Environmental practices depend on a broad range of causal factors, both general and behavior-specific. A
general theory of environmentalism may therefore not be very useful for changing specific behaviors.
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Different types of environmental practices have different causes. These causal factors may vary greatly
across behaviors and individuals, hence, each target behavior should be theorized separately.
In addition to the models and theories discussed above, two theories have been identified that affect environmental
behavior . These are the theory of diffusion of innovation and the health belief theory.
6. Diffusion of Innovation Model (Everett Rogers 1962)
In 1962, Everett Rogers introduced the concept of innovation diffusion . The theory purports that change
spreads in a population through a normal distribution of willingness to accept new ideas. At the level of the
individual, behavioral adoption occurs through the stages of knowledge, persuasion, decision, implementation and
confirmation . Several studies have considered and applied diffusion theory . The theory was popularized
with the general public in Malcolm Gladwell’s 2000 bestselling book The Tipping Point: How Little Things Can
Make a Big Difference. According to diffusion theory, behaviors are affected across a community through change
agents. There are four elements that would affect a change agent’s own behavior while diffusing innovation and
these are: involvement; social support; response information and; intrinsic control .
This model is important because of its ability to identify and assess the environmental literacy inducing information
possessed by individuals, with respect to the content, sources, quality and effect; within a social context, social
process and social support as upheld by this model.
7. Health Belief Theory
Beliefs help shape behavior. While enduring, beliefs are not fixed individual characteristics, but rather are acquired
through primary socialization . The Health Belief Model focuses on two aspects of an individual’s views of
health and behavior. These views are threat perception and behavioral evaluation . Threat perception – or
perceived risk appraisal – is founded on one’s perceived susceptibility to illness and the anticipated severity of the
consequences of such an illness. The Health Belief Model submits that, anytime there is an increase in an
individual’s assessed level of risk, there is an increase in the likelihood that the individual will adopt recommended
prevention behaviors . Behavioral evaluation, also known as coping appraisal  relates to the belief that an
available course of action will be beneficial and the anticipated barriers or costs of embarking on an action do not
outweigh the benefits . In addition to these core components of the model, there are demographic, socio-
psychological and structural variables, as well as ‘cues to action’ . Cues to action are the stimuli necessary to
initiate or trigger engagement in the desired, healthy actions. Cues could come in the form of media campaigns or
the illness of a family member, relative or close friend .
The Health Belief Model has been extensively used in health education to predict behavior change and research
continues to reveal validity in the model. Over time, much of the work of environmental and conservation education
has been framed to address the four core components of the Health Belief Model . The concepts of issue
relevance and cues to action, for example, are prevalent in the Guidelines for Excellence of the National Project for
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Excellence in Environmental Education. Therefore, making the concepts explicit and focusing on the secondary
variables may benefit environmental education .
Tenets of this theory could be applied in environmental studies for prediction of behavior change, particularly a
study like this one which also bears an interplay with health in terms of some negative environmental practices that
can lead to the incidence/prevalence of diseases. Also, the Health Belief Theory will enable the researcher to assert
if the fear of negative outcomes from bad environmental practices will propel individuals to imbibe pro-
environmental practices or not. Furthermore, since pro-environmental behavior is a mixture of self-interest (e.g.,
pursuing a strategy that minimizes one’s own health risk) and of concern for other people, the next generation, other
species, or whole ecosystems (e.g. preventing air pollution that may cause risks for others’ health and/or the global
climate), this model can as such provide a good base for a better understanding for such cause and action.
The discourse of environmental education and waste management cuts across numerous areas especially for the
reason that it deals with human behavior which is in itself a complex variable. Hence several concepts, models and
theories have evolved over the years to attempt an explanation into this interaction.
In conclusion, an amalgamation of these models and theories can create relational paths to finding long lasting
solutions to various environmental problems created by different human behaviors. For instance, the Environmental
Citizenship Model (ECM), the Value Belief Norm theory and the Reasoned Action Theory could be integrated in a
way that the Environmental Citizenship model provides a framework/scale to identify the level of an individual in
the environmentally literacy ladder. The ECM can help determine if a citizen is in the environmental entry level,
ownership level, and empowerment level; along with the likely environmental behavior a citizen would demonstrate.
The ECM is insufficient since it makes no provision for the biospheric, altruistic and egoistic values of the
individual, thus, the Value Belief Norm theory (VBN) can be complementary to the ECM. Furthermore, the VBN
specifies the kind of pro environmental behavior, be it activism, non-activist public sphere behavior, private sphere
behavior and behaviors in communities, which are not emphasized in the ECM. The Reasoned Action Theory
complements the ECM and VBN by providing a better understanding that good intentions towards the environment
are not enough in themselves to propel an action. It further explains that attitudes and subjective norms, contribute to
behavioral intentions, which can be used to predict behavior. The models and theories reviewed will undoubtedly
prove invaluable in the quest for nurturing a citizenry who will engage the environment sustainably.
Warm gratitude to the African Union Commission for its support for this paper through The Pan African University,
(Institute of Life and Earth Sciences, Nigeria) scholarship. I thank Prof. S.B Agbola and Dr.W.B. Wahab for their
supervision, I also thank the editor and the reviewers.
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