Thomas H. Birch of the University of Montana spent 1991-1992 investigating the nature of moral considerability in environmental ethics. During that time, he was a visiting professor in the Department of Philosophy and Religion Studies at the University of North Texas.

YRJÖ SEPÄNMAA, then of the University of Helsinki, spent 1992 and part of 1993 at the center investigating the relationship of environmental ethics to environmental aesthetics through research grants from the Fulbright Program and the Academy of Finland. He now teaches environmental aesthetics at the University of Joensuu.

William Jordan III of the University of Wisconsin Arboretum, Madison spent 1993-1994 studying ethical issues related to ecological restoration through a Professional Development Award from the Ethics and Values Studies Program of the National Science Foundation.

Jack Paxton of the Department of Plant Pathology at the University of Illinois, Urbana spent two months of his sabbatical leave in 1995-1996 looking into environmental ethics issues related to the goals of agricultural production.

Myung-Gyu Song, from the Department of Regional Planning at Dankook University in Seoul, Korea spent the1996-1997 academic year as a visiting research professor at the universtiy.

He brought his wife and children with him and took them to see much of the western United States.

Hsiao-Peng Hua graduated from the Universtiy of Texas, Austin with a Ph.D. in environmental education in spring 1996. He then spent 1996-1997 at the Center for Environmenal Philosophy engaged in postdocrotal research in environmental ethics.

Hua collaborated with Maggie McRaven, a graduate student in the environmental ethics program, and presented a paper on "A Taoist Perspective on Environmental Education" at the 26th Conference of the North American Association for Environmental Education in Vancouver, British Columbia in August 1997.

Ricardo Rozzi, a graduate student on a Fulbright Fellowship from Chile, is working toward a Ph.D. in ecology at the University of Connecticut. He is taking courses in environmental ethics during the summer and fall 1997, which will be part of his coursework toward his degree in ecology. Ricardo is attempting to bridge the gap between ecology and philosophy as part of his work for initiatives of the Institute of Ecological Research of Chiloe to explore the role of ecological values in the relationships between communities and the native forests of southern Chile at both the local and national level.

Jorge Mario Rodriguez Martinez, a Fulbright Fellow from the University of Saint Carlos of Guatemala, is spending the summer of 1997 attending an environmental ethics seminar and translating environmental ethics materials into Spanish for publication in Guatemala. In fall 1997 he will study philosophy at Ohio University, Athens.

Kurt Jax of the Center for Ethics in the Sciences and the Humanities at the University of Tuebingen spent two weeks in fall 1998 in the department as part of a research trip to the United States, investigating the impact of various definitions of the ecosystem concept on management policy.

Sally Packard, a faculty member of the School of Visual Arts at the University of North Texas, spent June 2000 in the department working on an environmental exhibit and participating in a seminar in environmental ethics.

Albert Cinelli from the University of Kansas spent 2000-2001 in the department in order to undertake postdoctoral research on environmental ethics.

David Kronlid of the Center for Ethics of Environmental and Development Studies at the University of Uppsala spent summer 2001 doing research on ecofeminism. Kronlid is also a Ph.D. student in the Ethics Department of the Department of Theology at the University of Uppsala.

Julien DeLord from the Ecole Doctorale lettres et sciences humaines of the University of Paris spent part of summer 2001 in the department in order to undertake doctoral research on environmental ethics.

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Robert Hood of the Department of Philosophy at Middle Tennessee State Univeristy spent summer 2001 doing research on how to establish and manage an environmental philosophy center.

Lars Fischer is from the University of Tuebingen and the University of Greifswald. He is doing research on environmental aesthetics. He also visited UNT in Summer 2001.

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Yong-Gae Cho, a research member of the Catholic University of Daegu, and a publisher of Eco-Friends, spent Spring 2002 at the university, engaged in research into environmental ethics and environmental education.

Yang Tongjin visited the department and center in early June 2002. He is an associate professor in the Institute of Philosophy at the Chinese Academy of Social Sciences in Beijing, China. He the fall of 2001 and the spring of 2002 at Colorado State University with Holmes Rolston, III before visiting UNT.

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Pandu Hegde spent the month of October 2004 in the department as a Fulbright Scholar. Hegde is the leader of a peoples organization known as Appiko, which means to hug. It has raised environmental consciousness in the Western Ghats of India utilizing the strategy of the earlier Chipko movement of northern India of hugging trees to shield them from the axe.

Johan Hattingh of the Unit for Environmental Ethics of the Department of Philosophy at the
University of Stellenbosch in South Africa made a brief visit with his son to the University of North Texas during Thanksgiving week in 2004. His visit included a talk for faculty and students.

Chigbo Joseph Ekwealo, a lecturer on a leave of absence from the Philosophy Department of the University of Lagos, Akoka, Nigeria, spent fall 2005 through fall 2006 doing research on environmental philosophy.

Kurt Heidinger, a Ph.D. in English from the University of Connecticut, is engaged in research and writing at the center in cooperation with the Omara Foundation in Puerto Williams, Isla Navarino, Chile. Heidinger is the former President of the Naubesatuck Watershed Council (2000-2005).

Myungsik Kim, a visiting professor from the Department of Moral Education, Chinju National University of Education, Sinan-dong, Jinju, Gyungnam-do, South Korea, engaged in research into environmental philosophy from fall 2008 to summer 2009.

Xiaona Yao, a lecturer of ethics from the Department of Social Science, East China Normal University in Shanghai, China, spent fall 2008 to summer 2009 doing research in environmental ethics. Her research interest is in applied ethics and moral education. Her focus at UNT was on the application of environment ethics theory in environmental education in China.

Jason Simus is a visiting research professor at the Center for Environmental Philosophy, doing research on environmental aesthetics. He is the first Ph.D. in the environmental philosophy program of the University of North Texas.

Magda Costa Carvalho. a professor of philosophy from the Department of History, Philosophy, and Social Sciences, Universidade dos Açores, in Ponta Delgada, Portugal, spent the first two weeks of June 2010 doing research in environmental ethics in the center. Her research interest is in applied ethics and moral education. Her focus at UNT was on an overview of environment ethics theory with an emphasis on its application in environmental ethics education.

Xiaohua Liu is a returning visiting professor from the Beijing University of Chemical Technology, on a second one-year leave of absence (2010-2011), to again engage in comparative research on on environmental ethics between East and West.

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Eleanore Presler, a graduate student in philosophy at the Free University of Brussels, ULB (Université Libre de Bruxelles), made a six-week visit in spring 2011 in connection with research for her dissertation investigating the building of a postmodern understanding of the classical "subject" in the context of deep ecology, quantum physics, and ecology. Especially important were her meetings with J. Baird Callicott concerning his own research in this subject area.

Mauro Gün, a philosopher at the Universidade do Planalto Catarinense in Brazil, spent several months at the Center on Environmental Ethics to engage in research on environmental philosophy, critically examining the interaction between nature and humans that theorizes a crucial role for nature in our lives as social citizens. In addition, he looked at environmental aesthetics in connection with the work of Eugene Hargrove and J. Baird Callicott .

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Angelika Neudecker had just finished her PhD at the University of Basel, and visited the Center for Environmental Philosophy as a post-doctoral research scholar, beginning in Spring 2012. Her focus is environmental ethics in the field of landscape change and the advancement of the "Four-Dimensional Balance (FB) Argument." She is also editor of the book Praxisband Angewandte Ethik, available through Amazon.

Antoine C.-Dussault a graduate student at Université de Montréal, is spent the Spring 2012 semester working on issues regarding the ecological foundations of ecocentrism. He is also a member of the Centre de recherche en éthique de l'université de Montréal and instructor in philosophy at Collège Lionel-Groulx.

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Edward Ezedike of the Department of Philosophy in the University of Port Harcourt in Nigeria is a Fulbright Scholar spending seven months in 2013 and 2014 in the Center for Environmental Philosophy doing research on environmental ethics and sustainable development.

Yun Xia Wang, a philosopher from
Shaanxi Normal University in Xi'an, China, is spending a year in the Center for Environmental Philosophy doing research on on environmental philosophy, specifically, involving a study of a comparison of ecocentrism and eco-Marxism. She is here with her husband and daughter.

Guohong Wang, a professor of business in the School of International Business in Shaanxi Normal University in Xi'an, China, is spending a year doing research in the Department of Management in the UNT College of Business. He is the husband of Yun Xia Wang (see above). For his conventience and his wife's, the Center for Environmental Philosophy is also providing him with office space as a visiting professor.

Ana Pineiro, a Spanish biologist from the Universidad Autonoma de Madrid with a speciality in eco-ethology and physiology of European wild animal species, is currently a postdoctoral researcher of the Millenium Institute of Ecology and Biodiversity. She will develop research on forest birds in the Omora Ethnobotanical Park in the Antarctic Province in Southern Chile and will also apply her knowledge on environmental education and ecotourism in the Cape Horn Biosphere Reserve area in Puerto Williams, Chile. She made a short visit in September 2013 to the UNT Sub-Antarctivc Biocultural Program, a program with which the Center for Environmental Philosophy is closely involved. See CEP's South American activities.

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Sergio Elórtegui is a Ph.D. student in the Ciencias de la Educacion, Pontificia Universidad Catolica de Chile in Santiago, Chile. He made a short visit in February 2014 as a visiting scholar to visit the Center for Environmental Philosophy and the associated Sub-Antarctic Biocultural Conservation Program. His research involves the ethos of naturalists and its application in environmental education.

Pergiacomo Pagano is a senior researcher in the Italian National Agency for New Technologies, Energy, and Sustainable Economic Development in Bologna, Italy.He is a specialist in evolutionary biology and environmental ethics. He made a two-month visit to the center from January 15, 2014 to March 15, 2014. He attended classes, met with faculty, and made a colloquium presentation. For more information see his personal website.

Xialing Li is a philosopher from the College of Marxism of the China University of Geosciences (CUG) in Wuhan, China. She is spending 2014 at the center doing research on environmental philosophy in the context of Heidegger and philosophy of science.

Grace Darling is a visiting scholar from the Department of Philosophy and Religion, Banaras Hindu University, Varanasi, India. She is spending a year at the center doing research on environmental ethics and its application.

Tetsuya Kono visited the center from August 2014 through March 2015. He is a professor in the Department of Education, Rikkyo University in Tokyo, Japan. He is concerned with environmental philosophy, environmental ethics, and environmental aesthetics, trying to establish a phenomenology of nature in terms of the theories of Fudo established by Tetsuro Watsuji.

Xue Fuxing is a professor of philosophy from Nankai University
in Tianjin, China, who visited the center from March 2015 through August 2015. He spent much of his time working with J. Baird Callicott discussing Callicott's work. In addition, he was interested in environmental ethics consciousness with regard to the development of a healthy and appropriate aesthetic taste in appreciation of environments.

Lu Feng, a professor of philosophy from Tsinghua University in Beijing, made a brief visit during the first two weeks in March to meet with the faculty in the Department of Philosophy and Religion Studies at the University of North Texas. He presented a lecture entitled, "Two Conceptions of Ecological Civilization in the Chinese Context," in a departmental colloquium.

Chukwugozie Maduka, a professor of philosophy from the Department of Philosophy and Religions, University of Benin in Benin City, Nigeria, is visiting the center from August 2015 through January 2016 to engage in independent research on environmental ethics. This is his second visit to the University of North Texas. He was a speaker at a conference on African environmental ethics in May 2010.

Angelina Paredes Castellanos, who is visiting the center and the Sub-Antarctic Biocultural Conservation Program, is from the Universidad Michoacana de San Nicolás de Hidalgo in Morelia, Michoacán, México. Her interests include environmental aesthetics, ecohermeneutics, ecofeminist ecocorporal female philosphy, history of South American environmental philosophy, history of Latinamerican, and the ancestral Amerindian roots in environmental ethics

Flavia Morello Repetto is a visiting scholar at the center and the Sub-Antarctic Biocultural Conservation Program at the University of North Texas (UNT). Dr. Morello is from the Universidad de Magallanes (UMAG), where she is researcher in social sciences and professor since 2001. Currently, at UMAG, she serves as Director of the Instituto de la Patagonia and Academic Coordinator of the Master in Social Sciences, Mention in Heritage or Mention in Social Intervention. She graduated in Archaeology at the University of Chile, and did her Master and PhD in Archaeology at the University of Paris 1 Pantheon-Sorbonne, France. Since 2021, Dr. Morello is PI at the Cape Horn International Center (CHIC), where she directs research on Biocultural Heritage closely collaborating with CEP and the Sub-Antarctic Biocultural Conservation Program at UNT. In September 2023 she visited at CEP - UNT to develop collaborative research.