Public participation refers most often to participatory political process of reclaiming interests, values and worldviews by social actors who are not professional or elected politicians. This chapter aims at reconsidering this form of expert representation, or civic epistemology, in relation to the tensions and reconfigurations of the Czech environmental movement and issues. The first part analyses the implications of the proposal for National policy for research development and innovation (2009-2015) and the second one discusses three cases of production and use of knowledge in three environmental knowledge production activities (urban ecology, rural and landscape ecology and conservation biology).