"The 'River of Already' and the Ocean of Emanations: The Ecological Theology of Water in Jewish Mysticism." Un oceano sin orilla. TBA21-Academy, Cordoba, Spain, November 9, 2022.
"Cambio climatico, local y global." World Weather Network, Artingenium, San Sebastian, Spain, September 28, 2022.
"Philosophy and Energy." Open Architecture Day 2022. Aarhus School of Architecture, Aarhus, Denmark, September 8, 2022.
“Material Sustainability: Perspectival Meditations.” Toward Perma-Cultural Institutions. Exercises in Collective Thinking. Stiftung Künstlerdorf, Schöppingen, Germany, July 13, 2022. [online]
"Lo vegetal y lo espectral." Ontologias plurales: los mundos que referimos. Universidad Pública de Navarra, Pamplona, Spain, June 28, 2022. [online]
"Philosophy of Nature Is Yet To Come!" State of Nature: Dialogues. Goethe Institut, Mumbai, Mumbai, India, February 10, 2022. [online]
“El ejemplo del mundo vegetal ante el reto de la supervivencia.” III Congreso de Liderazgo Ético: Ética y desafío climático. Fundación Vital / La Fundación Cluster de Ética del País Vasco, Vitoria-Gasteiz, September 29, 2021.
(with Laura Tripaldi), "Seven Prophecies of the Future. Part VI: Surface." Venice Biennale, September 23, 2021. [online]
"Between the Garden and the Dump: The Crux of Our Situation (and that of St. Hildegard)." The Garden and the Dump. Aarhus University, Denmark, September 15, 2021. [online]
"With Plants in the Middle." Locating Plants: Philosophy and Literature. University of Vienna, Vienna, Austria, June 10, 2021. [online]
"Further Contributions to Phytogenesis." Phytogenesis: Entanglements in a More-Than-Human World. University of Plymouth, Plymouth, UK, March 24, 2021. [online]
"The Mystical Kiss as a Model of Ecological Knowing." Looking for Experiences and Practices for an Ecological Civilisation in Latin America and the Caribbean, Hankuk University, Seoul, South Korea, February 25, 2021. [online]
"Dust Words & Worlds." Dust-Distraction. German Studies, Johns Hopkins University, Baltimore, MD, USA, February 13, 2021. [online]
"On Art as Planetary Metabolism." Metabolic Rifts IV. Rivoli Theater, Porto, Portugal, March 13, 2019.
"Our Scatological Eschatology." When Was Waste? Rice University, Houston, TX, USA, December 7, 2018.
"Plant-Listening: Resonances." Why Listen to Plants? RMIT University, Melbourne, Australia, December 5, 2018.
"The Three Ds of the Anthropocene: Devastate, Desertify, Dump." Terror on Tour. HEAD, Geneva, Switzerland, November 9, 2018.
"Plants and Philosophy, Plants or Philosophy." Living with Plants. University of Virginia, Charlottesville, USA, February 23, 2018.
"Vegetality." Botanical Speculations. School of the Arts Institute of Chicago (SAIC), USA, September 29, 2017.
"On Lack and Plenitude in the Vegetal World." Plantarium. Linköping University, Sweden, June 1, 2017.
"Becoming More Vegetal--Energy-wise." Roaming Assembly XIV: Becoming More. Van Abbemuseum, Eindhoven, Holland, May 21, 2017.
"Let's Not Hurry to Leave the Middle! Lingering with Plants." Vegetal Mediations. Central European University, Budapest, Hungary, May 6, 2017.
"The Nature of Things: Communication between Plants, Roots, and Fungi." Mykorrhiza: Ein Apparat: Alien Ecologies. FTT Kammerspiele, Düsseldorf, May 13, 2015.
"The Sense of Seeds or Seminal Events". Fifth Biannual Conference of the Association for the Study of Literature, Environment, and Culture (Australia & New Zealand). Australian National University, Canberra, Australia. June 21, 2014.
"Plant Intelligence and Bio-Attention". The Annual Meeting of the Society for Plant Signaling & Behavior. University of British Columbia, Vancouver, Canada. July 9, 2013.
“Recovering the Lifeworld: Toward an Ontology of Political Will”. Fifth Annual Conference of the Telos Institute. New York University, NY. January 16, 2010.
“Becoming-World of the World: Globalization in the Aftermath of Heidegger and Derrida”. International Conference on Globalization, Culture, and the Ethics of the Humanities. St. Berchman’s College, Kerala, India. July 9, 2009.