In this paper, we are interested in how ethnographic research can contribute to the promotion of public deliberation. We do not use ethnography only to study deliberative processes but rather we intend to interpret ethnographic research as a social practice, and we research conditions under which ethnographic research might have deliberative consequences. The paper summarizes the results of the multidisciplinary research project Stories of Drought, which combines natural and social sciences in its approach. The project aims to understand how people in Czech rural areas respond to localized effects of climate change, especially drought. Following a systemic approach to deliberative democracy, we study how ethnography contributes to fulfilling three deliberative functions: (1) the epistemic function; (2) the ethical function and (3) the democratic function. In the context of irrigation disputes in South Moravia, we map the arguments of main actors and critical tensions in local discourses. We conclude that ethnographic research, due to its hybrid position between different sources of knowledge, its institutionally recognized expertise and its ability to establish an ethnographer as a trustworthy actor, can outweigh local critical power imbalances blocking deliberative capacity in local policy systems. [ABSTRACT FROM AUTHOR]