This article develops a theoretical framework for trust in science. The framework is created to facilitate analysis of the growing environmental youth movement’s trust in and relation to climate science. This article provides a critical review of previous theoretical discussions of trust in science–public relations and recontextualizes and continues the discussion. This is accomplished by adopting a discourse analytical perspective on trust, knowledge production, and the construction of social order. The study shows how trust and the assessment of trustworthiness lie at the core of knowledge production and the construction of social order as well as how a problematization of trust as a truth-accepting practice is essential to understanding the growing environmental youth movement and its relation to science.