Rolston Lectures, Symposia
Invited Lectures, Symposia Conducted
Yale University, School of Forestry and Environmental Studies
Yale University, Law School
Yale University, Program in Bioethics
Rutgers University
University of Georgia
Harvard University (Visiting Scholar)
Harvard University
Princeton University
Columbia University
Georgetown University
University of Colorado
University of Colorado Law School
University of Colorado, Leeds School of Business
Vanderbilt University
Vandervilt University Divinity School
University of Viginia
University of Virginia Medical School]
University of Virginia Law School
University of Tennessee
Ohio State University
Montana State University
University of Montana
University of Wisconsin, Stevens Point
University of Denver
Iliff School of Theology, University of Denver
Pittsbugh Theological Seminary
Union Theological Seminry in Virginia, Richmond
Jewish Theological Seminary of America
University of Illinois
Syracuse University
Creighton University
George Washington University
Pacific Lutheran University
University of Portland
Oberlin College
Lutheran School of Theology at Chicago
Pennsylvania State University
Graduate Theological Union, Berkeley
Davidson College, Davidson, NC
Queens College, Charlotte, NC
Rhodes College, Memphis, TN
Hastings College, Hastings, Nebraska
Washington State University
Ball State University, Muncie, IN
University of Nevada, Las Vegas
Willamette University
California State University, Fullerton
South Dakota State University
University of Northern Arizona
Arizona State University
Boston University
Marquette University
Villanova University
North Idaho College
St. Joseph's College, West Hartford, CT
Vermillion College, Minnesota
University of Hawaii, Manoa, East-West Center
Stetson University
Calvin College, Grand Rapids, MI
College of Charleston
Oregon State University
University of Oregon Law School
Kentucky State University
Washington and Lee University
University of Utah
Salt Lake Community College
Utah State University
Iowa State University
University of Wyoming
University of Oklahoma
Union College, Schnectady, NY
Wilson College, Chambersburg, PA
Linfield College, Linfield, OR
American University, Washington
Southwest Louisiana State University
University of North Carolina
North Carolina State University
University of South Carolina
Texas A&M University
California Polytechnic University, Pomona
California Polytechnic University, Ibispo
University of the Pacific
University of Notre Dame
University of Florida, Gainesville
University of Michigan
Oakland University, Michigan
Morthwestern College, Orange City, Iowa
Coker College, Hartsville, SC
University of Virginia
University of Virginia Law School
University of Virginia Medical College
Furman University
Clemson University
Purdue University, West Lafayette
Colby College, Maine
Metro State College, Denver
Lubbock Christian University, Lubbock, TX
Seattle University
International Lectures, Symposia
Chinese Academy of Social Sciences, Graduate School, Beijing
People's University, Beijing
Chinese Academy of Social Sciences, Institute of Philosophy, Beijing
Qinghua University, Beijing
Beijing Agricultural University, Beijing
Northeastern University, Shenyang, China
Graduate School, Social Science Department, Northeast Forestry
University, Harbin, China.
Suzhou Institute of Urban Construction and Environmental
Protection, Suzhou, China
Northeastern University, Shenyang, China
National Taiwan University, Taipei, Taiwan
National Chengchi University, Taipei, Taiwan
Fu Jen Catholic University, Taipei, Taiwan
National Taiwan Normal University
Providence University (Jing-Yi). Taichung (at Shalu), Taiwan.
Tunghai University, Taiwan
Tainan Theological College and Seminary, Taiwan
TamKang University, Tamsui, Taiwan
National Cheng Kung University, Taiwan
National Tsing Hua University, Hsinchu, Taiwan
National Dong Hwa University, Hualien, Taiwan
Kyoto University, Hanazono College, Japan
Hong Kong Baptist University, Hong Kong
National University of Singapore
Federal University of Rio Grande do Sul, Porto Alegre, Brazil
Oxford University, Mansfield College
Oxford University, Wycliffe Hall
Oxford University, Ian Ramsey Centre
Cambridge University, St. Edmund's College
Cambridge University, Queens College
University of Manchester
University of Exeter
Aberdeen University, Scotland
University of Edinburgh
University of Lancaster
University of Oslo, Norway
University of Bergen, Norway
University of Helsinki, Finland
Vrije Universiteit (Free University), Amsterdam
University of Stellenbosch, South Africa
University of South Africa (UNISA), Pretoria
Rhodes University, Grahamstown, South Africa
University of Cape Town, South Africa
University of Uppsala, Sweden
Odense University, Denmark
Arhus University, Denmark
National University of Singapore
University of Ireland, Cork
University of Bucharest, Romania
University of Winnipeg, Manitoba
University of Guelph, Ontario
Yukon College, Whitehourse, Yukon Territory
University of Iceland, Reykjavik
Research School of Social Science, Australian National University (Canberra)
LaTrobe University (Melbourne)
University of Tasmania (Hobart)
University of New England (Armidale)
University of Queensland (Brisbane)
Flinders University of South Australia (Adelaide)
Queensland University of Technology (Brisbane)
James Cook University (Townsville, Qld)
University of Western Australia (Perth)
Murdoch University (Perth)
Other Lectures, Symposia
Society of American Foresters
American Fisheries Society, Oregon Chapter
The Wildlife Society
United States Forest Service
Yellowstone National Park
Chicago Botanic Garden
United States Environmental Protection Agency
Colorado Division of Wildlife
United States Fish and Wildlife
Society for Conservation Biology
Texas Parks and Wildlife and the University of Texas
Society for Range Management, Texas Section
Research Center for Eco-Environmental Sciences, Department of Systems Ecology, Peoples Republic of China
Taiwan Forestry Research Institute, Taipei, Taiwan
Society for the Conservation of Nature in Israel
International Society of Environmental Epidemiology
World Health Organization (WHO)
United Nations Environment Programme (UNEP)
U.S. Army Military Veterinary Command
Kruger National Park, South Africa
Wilderness Leadership School, Durban, South Africa
Second National Brazilian Congress on Conservation Areas and Biodiversity, Campo Grande, Brazil
California Bar Association, Environmental Law Conference
Tennessee Bar Association, Waste Management Conference
American Church in Paris
.