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Environmental Literacy Research: Global Scientometric Mapping of Five Decades

Vijay Kumar R.1 * , Thamizhiniyan K.2 and Naseema S.3

Corresponding author Email: vijaykumarsoe@gmail.com

DOI: http://dx.doi.org/10.12944/CWE.16.3.26

To date, there is no scientometric study conducted on Environmental Literacy (EL) literature. Hence, this paper aims to bridge this gap.We aimed fora holistic scientometric analysis of scientific literature available on EL, whichresulted in finding global research trends in EL research. We operatedthe following scientometric tools: VOSviewer and Bibliometrix R Package-Biblioshiny for complete science mapping analysis of the collected bibliographic data retrieved from Scopus database. We analysed the Scopus scientific research outcomes during the last 50 years. The outcome included438 total documents published and among them 354 were articles and 84 were conference papers published by1112 authors from 50 countries. The findings of this study arevital for policy makers, researchers and other working in environmental education and literacy development to understand the potential gaps and strength in the current EL research in Scopus literature.

Environmental Education; Environmental Literacy; Research Trends; Scientometric Analysis; Scopus Database

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Kumar V. R, Thamizhiniyan K, Naseema S. Environmental Literacy Research: Globalscientometric Mapping of Five Decades. Curr World Environ 2021;16(3). DOI:http://dx.doi.org/10.12944/CWE.16.3.26

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Kumar V. R, Thamizhiniyan K, Naseema S. Environmental Literacy Research: Globalscientometric Mapping of Five Decades. Curr World Environ 2021;16(3). Available From: 


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Article Publishing History

Received: 14-07-2021
Accepted: 20-12-2021
Reviewed by: Orcid Orcid Daniele De Wrachien
Second Review by: Orcid Orcid Chadetrik Rout
Final Approval by: Dr. Mohammad Oves


Introduction

The exponential growth in scientific papers around the world demanded the interpretation and summarization of the research papers on ensuing information in order to assess and analyse its growth, evolution, and progress1. Scientometric analysis aims to evaluate scientific productivity of research outputs and also helps in exploring the dynamics of researchers and their research outcomes. Scientometric is a quantitative analysis of visualization of bibliographic data in presenting the research trends including the timeline, production year/ author/ journal/ country/ citation/ institution/ country collaboration/ keyword occurrence, etc., several studies dealing with bibliometric elements of research production published in the scientific sources. Scientometric examination of publication output in various countries has been studied in a few studies2. Citation Analysis is a research approach in informatics that compares the citations of scientific papers, journals, and other research items3.

Environmental literacy is a set of information, feelings, attitudes, abilities, and behaviours relating to the human-environment relationship and environment4. EL is broader in its application in various discipline. Teacher preparation in early childhood education is one among the applications where teachers need knowledge, attitude and skills towards effective implementation of EL to students. Like other subjects, EL is one of the paradigms of early childhood teacher education centered on professional development and targeted at gaining action skills from an environmental literacy perspective5. Natural resource conservation education, nature education, resource utilisation education, informal education, geography education, and science education all benefit from environmental education, which evolved as a separate field in the mid-1960s.  Economic, ecological, social, and political awareness are all goals of environmental education6. Environmental literacy refers to people's environmental knowledge, positive environmental values and attitudes, as well as the motivation and skills, and dedication needed to help solve environmental challenges7.

Increasing environmental literacy at all stages of life will result in a shift in mind-set and subsequent behaviours or actions on the part of individuals, ultimately protecting the entire globe8. Cognitive and affective skills, the ability to collaborate with others, the development of communication skills, the understanding of complex information, the analysis and application of such information to new situations, and the acquisition of higher-level skills to develop psychomotor capabilities are all examples of EL skills6. Increasing pre-service teachers' environmental literacy and competency so that when they become professional teachers, who can plan and implement active environmental accomplishments in their teaching9.

Most reviews suggest the inclusion of El in various disciplines of social sciences and humanities. Like that, science discipline too put the effort in promoting Environmental literacy will be addressed primarily in scientific curriculum and textbooks, perhaps providing opportunities to protect the natural environment and encourage its efficient use.10 It is necessary to develop kids' environmental literacy. EL is the ability of each individual to take positive action toward the environment in their daily lives by using knowledge about environmental situations11. Citizen Science projects, where participants and scientists work on a project together, result in participants communicating about and engaging in field research, and increasing their scientific knowledge and environmental literacy12. Environmental literacy is essential for students. The formal education system plays an essential role in environmental education activities, particularly at the higher education level, where trans-disciplinary curriculum is available to help university students improve their environmental literacy13. And because of their increasing numbers, people play a significant role and have significant influence on the planet. As a result, the demand for food, clean water, fuel, and space grows. Every year, environmental changes will occur in both local and global contexts. As a result, environmental literacy needs to be improved14.

Literature Review

Research policy and within the research system, citations are increasingly being employed as performance indicators15. We are currently in the midst of a terrible environmental crisis that is not restricted to any one country or region; it is worldwide. The survival of all living species, including humans, has grown increasingly difficult as land, water, and air have gotten increasingly polluted. It is past time to begin a dynamic process of educating youngsters and all residents about today's environmental realities. We need to re-educate ourselves to treat the environment with greater prudence and control, and it is because of this knowledge that environmental education is given top priority16.

Environmental literacy is a notion that dates back to the late 1980s and was formalized as an agenda for environmental teaching in the 1990s17. The promotion of EL is at the heart of the environmental teaching (ET) movement. Nature study and outdoor education were forerunners to environmental education in the early nineteenth century, but The first worldwide conference on environmental education, sponsored by UNESCO in 1977, drew attention to the area.18 Environmental literacy is required to develop an environmentally sound society that understands the importance of ecology and the environment for human beings' long-term survival19. Environmental literacy is developed and nourished through a variety of educational programmes that lead to the development of knowledge, attitudes, skills, and, eventually, environmental behaviour20. Environmental knowledge is the foundation of environmental literacy21.

It is evident from the above review, no research studies on Environmental Literacy have been conducted using Scientometric analysis. It is also evident that analysis of burning issues on the environmental education-related topic will shed light on policy issues to revisit the environmental curriculum.

Objectives of the Study

To analyse the global research productivity in Environmental Literacy Research in terms of Annual scientific productivity. The top contributing authors, The most contributing Journals, The top productive countries, The most cited documents, Visualise the Keyword Co-occurrence Network, The top productive affiliations, The top Country collaboration and creating a word cloud for Author’s Keywords.

Limitations

This study has a few limitations. First, the bibliometric data were collected only from the Scopus database for analysis neglecting other scientific databases like Google Scholar and Web of Science, Thus, other databases may offer a different number of published data or citation counts. Secondly, due to frequent change in citation volumes overtimes, the findings of this study are of temporary nature and valid for the time point of the present study’s data retrieval on 9th July 2021. This research documents those that are published in English covered the important search domain like Title, Abstract and Keywords, etc., that too limited to Journal Articles and Conference papers. However, we believe that this study provides a complete scientometric output and advances insights into the global research on Environmental Literacy.

Methods and Materials

All research publications in EL research were retrieved from the Scopus Database on July 9th 2021. The search term was (“Environmental Literacy*”)in the Title-Abstract- Keywords field and the metadata were collected from 1971 to 2021. The data is limited to research articles and conference papers retrieved in the English Language. The data were collected 9th July, 2021. The exact output of the search was TITLE-ABS-KEY (“Environmental Literacy*”) AND (LIMIT-TO (DOCTYPE, “ar”) OR LIMIT-TO (DOCTYPE, “cp”)) AND (LIMIT-TO (LANGUAGE, “English”)) and the same has been analysed accordingly.

The bibliographic data analysis has been carried out with the help of Bibliometrix - An R programme (R version 4.0.2) that allows conducting extensive quantitative research. It allows bibliographic data to be imported from a variety of sources like data retrieved from Scopus database22.

VOSviewer (Version 1.6.16) – is a software tool for mapping and visualizing of scientific network data.

Results

Table 1: Research Outputs in Environmental Literacy.

Scopus Data Output In Environmental Literacy

Timespan

1971 to 2021

Total Documents

438

Average citations per article

10.82

Average citations per year per article

1.243

Total number of References

12829

DOCUMENT CONTENTS

Keywords Plus (ID)

1335

Author's Keywords (DE)

981

AUTHORS

Total authors count

1112

Authors of multi-authored articles

1021

Authors of single-authored articles

91

AUTHORS COLLABORATION

Single-authored articles

98

Documents per Author

0.394

Per-Document Authors

2.54

Per-Document Co-Authors

2.98

Index of Collaboration

3

 

This study looked at the overall increase in EL publications over the last 50 years. 1112 authors published a total of 438 papers, including 222 journals and 216 conference proceedings. Prior to 1993, the total number of scientific publications was quite low (n-4) and began to rise rapidly after 1993, peaking in 2020 (n-57). The average yearly percentage growth rate of annual scientific production increased by 11.65%.

Figure 1: Annual Scientific Production in Environmental Literacy Research.

Click here to view Figure


Figure 1, depicts the annual number of scientific publications on EL, starting with one in 1971 and ending with 34 in 2021, all of which are already in the Scopus database. From 1971 to July 9th 2021, there has been a steady development and increase in the number of article publications. The increasing growth of publication is seen from 2008 to 2020. Moreover, the year 2020 was the most productive year in terms of the highest number of publications in EL with 57 documents.

Citation Rate and Dynamics


The average citation per item (CPI) was 10.82 for the 438 items retrieved and the average citation per year per document was 1.234. The year with the most total citations per article was 60.5, followed by 58.7 in 2007. The average total citation per year in 2007 was a whopping 4.19. The number of single-authored articles has remained constant at 91, while the number of multi-authored articles has increased to 1021.

Table 2: Top Contributing Authors in Environmental Literacy Research.

Rank

Authors

Articles

Articles Fractionalized

h-index

g-index

m-index

TC

PY-start

1

GOLDMAN D

10

3.33

8

10

0.5

416

2006

2

YAVETZ B

6

2

5

6

0.313

352

2006

3

MARDIYANTI L

5

0.95

0

0

0

0

2021

4

ORION N

5

1.83

4

5

0.211

128

2003

5

ERDOGAN M

4

2.17

4

4

0.308

96

2009

6

ERTEPINAR H

4

1.17

4

4

0.308

131

2009

7

FANG W-T

4

0.74

4

4

0.571

70

2015

8

PETERSON MN

4

0.71

3

4

0.333

82

2013

9

BOGNER FX

3

1.33

2

3

0.5

13

2018

10

DANIELS CB

3

1

3

3

0.75

28

2018

 

In the EL research, there were 91 single-authored publications in the whole data set of 1112 authors obtained from Scopus and 1021 multi-authored publications. Among the top ten contributing authors in the field of EL, Goldman D had the most publications (n = 10) and the highest h-index (n = 8), followed by Yavetz B with the second most publications (n=6) and h-index (n=5). Citation is the most important factor in publishing. Among the top authors listed in table 2, Goldman D had the most citations (n=416), followed by Yavetz B (n=352).

Table 3: Top Contributing Journals in Environmental Literacy Research.

Rank

Source               

h-index

g-index

m-index

TC

NP

PY-start

1

ENVIRONMENTAL EDUCATION RESEARCH

12

23

0.461538

585

31

1996

2

JOURNAL OF ENVIRONMENTAL EDUCATION

18

26

0.473684

1041

26

1984

3

SUSTAINABILITY (SWITZERLAND)

5

10

0.714286

109

14

2015

4

INTERNATIONAL JOURNAL OF ENVIRONMENTAL AND SCIENCE EDUCATION

6

10

0.5

100

10

2010

5

APPLIED ENVIRONMENTAL EDUCATION AND COMMUNICATION

5

6

0.357143

44

8

2008

6

EURASIA JOURNAL OF MATHEMATICS, SCIENCE AND TECHNOLOGY EDUCATION

4

8

0.307692

87

8

2009

7

INTERNATIONAL JOURNAL OF SUSTAINABILITY IN HIGHER EDUCATION

5

8

0.238095

110

8

2001

8

JOURNAL OF CLEANER PRODUCTION

6

6

0.272727

268

6

2000

9

WATER (SWITZERLAND)

2

2

1

7

6

2020

10

JOURNAL OF BIOLOGICAL EDUCATION

3

5

0.166667

26

5

2004

 

The above data analysis reveals that the top contributing sources/journals were 222 scientific Journal publishing papers in research area of EL. The table 3, reveals that the journal Environmental Education Research had the highest scientific document output (n=31) followed by Journal of Environmental Education (n=26), Sustainability (n=14), International Journal of Environmental and Science Education (n=10) and Applied Environmental Education and Communication (n=8). The top cited journals among the most productive journals were Journal of Environmental Education (n=1041), followed by Environmental Education Research (n=585) and Journal of Cleaner Production (n=268).

Table 4: Top Productive Countries in Environmental Literacy Research.

Country

Articles

SCP

MCP

Total Citations

USA

78

74

4

1185

INDONESIA

39

38

1

59

CHINA

30

25

5

158

TURKEY

25

19

6

380

ISRAEL

20

19

1

715

AUSTRALIA

16

11

5

137

UNITED KINGDOM

14

13

1

157

MALAYSIA

11

10

1

139

CANADA

10

9

1

41

AUSTRIA

5

2

3

33

 

Fifty countries were involved in total research output in EL in Scopus Publication. Among them, the top ten countries contributed the maximum of publications compared to other countries (Table 4). TheUnited States of America (USA) published the maximum papers (n=78), had the highest 1185 citations. Other most productive countries were Indonesia (n=39), China (n=30) followed by other countries. The United States of America ranked first in terms of Single Country Publications (SCP) (n=74), followed by Indonesia (n=38), China (n=25) and other countries. In Multi-Country Publication (MCP), Turkey ranked first (n=6) followed by China and Australia (n=5) each

Table 5: Most Cited Papers in Environmental Literacy Research.

Out of 438 total publications on EL, 50 publications received more citations. Table 5, depicts the top ten publications as per the total number of citations. The article entitled “Two Avenues for Encouraging Conservation Behaviors by Martha C. Monroe in Research in Human Ecologypublished in2003 received the highest citations (n=158) followed by other publications presented in the table5 for comprehensive understanding.

Figure 2: The Author’s Keywords Co-Occurrence Network.

Click here to view Figure


From the above figure, it is inferred that a total of 1731author’s keywords, only 75 met the criteria of threshold. The strength of the co-occurrence linkages with other keywords was assessed for each of the 75 keywords. We chose the terms with the most total link strength. The keyword Environmental literacy occurred 153 times with 345 total link strengths, Environmental Educationoccurred 104 times with 293 total link strengths, Literacy occurred 36 times with 204 total link strengths, Students occurred 40 times with 136 total link strengths followed by Article occurred 15 times with 134 total link strengths.

Table 6: Top Productive Affiliations in Environmental Literacy Research.

Rank

Affiliations

Country

Articles

1

UNIVERSITAS NEGERI MALANG

INDONESIA

30

2

UNIVERSITAS PENDIDIKAN INDONESIA

INDONESIA

29

3

UNIVERSITY OF OTAGO

NEW ZEALAND

27

4

NORTH CAROLINA STATE UNIVERSITY

USA

18

5

MIDDLE EAST TECHNICAL UNIVERSITY

TURKEY

17

6

BEN GURION UNIVERSITY OF THE NEGEV

ISREAL

11

7

NATIONAL TAIWAN NORMAL UNIVERSITY

TAIWAN

10

8

UNIVERSITY OF SOUTHERN CALIFORNIA

USA

10

9

SEBELAS MARET UNIVERSITY

INDONESIA

9

10

UNIVERSITY OF SOUTH AUSTRALIA

AUSTRALIA

9

 

From the above table, it is evident that, a total 435 contributed affiliations, more than 39 affiliations contributed more than 5 publications (Table 6). Among the top ten affiliations first eight affiliations contributed ten or above publications. Three affiliations belong to Indonesia, Universitas Negeri Malang(n=30) and Universitas Pendidikan Indonesia (n=29)have contributed the highest documents in EL followed by New Zealand’s University of Otago (n=27). Indonesia’s three affiliations and The United State of America’s two affiliations and each affiliation from Turkey, Israel, Taiwan and Australia were present among the top contributors.

Table 7: Country Collaboration Network in Environmental Literacy Research.

From

To

Frequency

USA

TURKEY

7

INDONESIA

MALAYSIA

4

CHINA

THAILAND

3

CHINA

USA

3

CHINA

AUSTRALIA

2

TURKEY

CZECH REPUBLIC

2

USA

AUSTRALIA

2

USA

IRAN

2

USA

ITALY

2

AUSTRALIA

KOREA

1

 

Among 68 Country collaboration network identified in EL research. Table 7, presents top ten country collaboration, among them The United States of America and Turkey collaboration occurred seven times followed by Indonesia and Malaysia – four times. Chinawas the second topper in country collaboration with three countries followed by the United States of America was the most collaborated country among the top ten collaborations with four countries.

Figure 3: Word Cloud for Author’s Keyword.

Click here to view Figure


Among 50 Keywords, Authors provided in all 438 documents, a word cloud was formed by measuring the repeated word occurrence in square root for the top fifty words in a circle shape. The word cloud inferred that the mostly appeared words like; Environmental Literacy and Environmental Education are treated as the top keywords used by the authors.

Discussion

Scientometrics is the study of assessing the quality and impact of research23. The number of EL related publications have increased 50-fold since 1971, probably reflecting the different approaches and dimensions of Environmental Literacy(EL) concepts. We deducted an extensive increase in number of publications after 2007. The analysis forecasts that EL research is in an increasing trend since there has been a steady increase in the number of publications since 1971.

Multi-authored publications have a higher trend than of single-authored publications. The United Kingdom had the top two ranked journals: Environmental Education Research(3.512 impact factor (IF) and 5.2 Cite-Score as per 2020, the most contributed journal in EL) followed by another United Kingdom-based journal The Journal of Environmental Education publishes pedagogical research in sustainability and environmental education, (2.915 IF and 4.2 Cite-Score as per 2020.)

The supportive policy, funding and research outlook policy in USA placed the in the top among 78 articles in which 74 SCP and receive the highest 1185 citations. The larger the influence, the more often is cited. Because of its pioneering contribution, high-citation literature is frequently regarded as a landmark in this academic field3.

Since the study collected bibliographical data on ELand it is highly associated with the key term Environmental Education, keyword co-occurrence network reveals that most of the authors in EL research papers used Environmental Literacy(n=153) or Environmental Education (n=104) as the predominant keyword in their papers. Three affiliations from Indonesia and two affiliations from the USA were among the top productive affiliations in EL research.

Country collaboration is a noted parameter in research output of any discipline. In El research the association between the USA and Turkey found to be the highest.

The study results shall be of great support to the Stakeholders in order to know the research trends or pattern on a specific key terms and publications in Environmental Literacy. The stakeholders like funding agency may fund more on the most needed researched areas. The researchers, may identify the research gap of the research areas and fill the gap by conducting research. The teachers, may give more concentration on the recent research findings in their teaching. The students may take up specializations which are the need of the hour.

Conclusion

Increased attention to environment and environmental issues inevitably brings rising expectations for solutions to critical problems through research-based evidence. Empirical research has always evolved from academic disciplines that draw from theoretical and empirical foundations. Hence, research and the number of publications on environmental literacy (EL) have been published over five decades has been evaluated using Scientometric analysis. The purpose of this research was to portray a comprehensive and systematic scientometric analysis of environmental literacy research in the global scenario. This study is the first of its kind to investigate global ELresearch trends that provides in-depth analysis and information into the annual scientific productivity, top contributed authors, most contributed journals, top productive countries, globally most cited documents, Co-occurrence Network of Keyword, top productive affiliations, top Country collaboration network finally word cloud for Author’s Keywords, emphasizing the different dimensions of EL research approaches. Over the past five decades, research in environmental literacy has progressed tremendously, resulting in a greater awareness of fundamental Environmental issues from regional, national and international levels.EL is important because it plays a crucial role in leading to advancement in emerging areas like sustainable development, environmental attitude, awareness and behaviour, education for sustainability, eco-friendly practices, pro-environmental behavior, environmental knowledge and health literacy.

Acknowledgement

The authors submit sincere thanks to Pondicherry University for providing subscription to Scopus database for retrieving data. In addition, two blind peer-reviewed reviewers are acknowledged for their suggestions in improving this article.

Funding Sources

No financial support was received to conduct this research study.

Conflict of Interest

All the authors declare no conflict of interest.

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