My areas of research are communication theory, intercultural communication, international communication, communication and technology, mass communication, and environmental communication. Over the years, I have published in all these areas and in zones of overlap.

I am fascinated with new technologies that are impacting authenticity in mediated messaging (deep fakes and such) and their potential dangers for democratic culture and institutions. I wrote my first paper on the ethics of digital manipulation and visiocentric (as opposed to Derrida's notion of phonocentric) culture back in 1992, well before it was widely recognized as an issue for most scholars. I am also very interested in the role of science within society, especially with regard to environmental communication and policy-making.