- "Outline of an Ecocentric Decision Procedure," at Thinking Through Nature: Philosophy for an Endangered World -- a conference organized by the International Association for Environmental Philosophy, and hosted at the University of Oregon - Eugene (June 2008)
- "Our Environmental Crises," presented at the 40th Anniversary Meeting of the North Texas Philosophical Association, hosted by the University of North Texas - Denton (April 2007)
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"Nussbaum, on Rawls, on Disability," given at the Iowa Philosophical Society's 62nd Annual Conference, Iowa State University (September 2006)
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"Rawlsian Political Liberalism and Environmental Discourse," presented at Globalization, Environmental Ethics, and Environmental Justice, An International Conference, organized by the Lyman Briggs School of Science, Michigan State University (August 2006)
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"Nature and the Nature of Capitalism," presented at the Radical Philosophy Association's Group Session: Capitalism and Globalization, at the Central Division Meeting of the American Philosophical Association, Chicago, IL. (April 2006)
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"Preferential Treatment and the Demands of Fair Competition," at the 10th Annual National People of Color in Predominantly White Institutions Conference, sponsored by the University of Nebraska - Lincoln (November 2005)
