“Non-Profit Institutions and Community Wind Projects,” Windpower 2012, Annual Meeting of The American Wind Energy Association, Atlanta, Georgia, June 6, 2012.
“More Heat Than Light": A Christian Ethical Assessment of U.S. Energy Policy, Annual Meeting of the Society of Christian Ethics, Chicago, Illinois, January 11, 2009.
“The Power to Change: U.S. Energy Policy and Global Warming,” Annual Meeting of the American Academy of Religion, Chicago, Illinois, November 3, 2008.
“Bonhoeffer, the Church, and the Climate Question,” Ecclesia & Ethics: An Eco-friendly and Economically-feasible Online Biblical Studies and Theology Conference, St. Andrews University, Scotland, May 25, 2013.
“Climate Justice and U.S. Energy Policy,” plenary address to the annual meeting of the Methodist Federation for Social Action, Des Moines, Iowa, October 20, 2012.
“Dietrich Bonhoeffer and Social Ministry,” remarks presented to a meeting of retired executives of Lutheran Social Service Agencies, Decorah, Iowa, October 11, 2012.
“The Business Case for Sustainability: The Luther College Experience,” panel remarks at Finding Iowa’s Way: Economic Solutions for a Healthier Environment, the annual conference of the Iowa Environmental Council, Des Moines, Iowa, October 4, 2012.
“The Energy Stewards Initiative of Lutherans Restoring Creation,” Root River Conference of the Southeastern Minnesota Synod of the Evangelical Lutheran Church in America, September 11, 2012.
“Lutheran Theology and the Environment: Bonhoeffer, the Church, and the Climate Question,” Association for Teaching Theologians in the Evangelical Lutheran Church in America, Capital University, Columbus, Ohio, August 14, 2012.
“A Lutheran Ethic of Environmental Stewardship,” plenary address at the “Vocation of a Lutheran College” annual conference, Augsburg College, Minneapolis, MN, July 31, 2012.
“Lutheran Perspectives on Ecological Issues,” five one hour-long lectures presented to the Lay School of Theology, Northwest Wisconsin Synod of the Evangelical Lutheran Church in America, Chippewa Falls, Wisconsin, March 9-10, 2012.
“Iowa Leadership in Wind Energy Education,” panel remarks at the annual meeting of the Iowa Wind Energy Association, April 27, 2011.
“Skull Valley: Nuclear Waste, Environmental Racism, and Tribal Sovereignty,” public speech sponsored by the Center for Ethics and the Environmental Studies Department at the University of Montana in Missoula, Montana, April 18, 2011.
“Climate Justice and U.S. Energy Policy,” Philosophy Forum, University of Montana, Missoula, Montana, April 18, 2011.
“Luther College’s Integrated Renewable Energy and Campus Sustainability Initiative,” Annual Meeting of the Association for the Advancement of Sustainability in Higher Education, Denver, Colorado, October 12, 2010.
“Hydraulic Fracturing and ELCA Social Policy,” ELCA Consultation on Hydraulic Fracturing,” Hickory, Pennsylvania, September 23, 2010.
“Ethical and Religious Values on Energy Policy,” The Institute on Religion in an Age of Science, Star Island, New Hampshire, July 24-31, 2010.
“Sustainability, Higher Education, and Climate Change,” Spring convocation address, Waldorf College, March 15, 2010.