© Oxford University Press 2017. This chapter elaborates on the need for knowledge- based journalism in politicized science controversies, detailing specific practices and media structures that might enable more constructive debate. In doing so, it analyzes three main models for doing knowledge- based journalism, drawing on examples of veteran journalists who serve as prototypes for new generations of professionals to emulate and for media organizations to invest in. By combining these approaches, journalists and their news organizations can contextualize and critically evaluate expert knowledge and competing claims, facilitate discussion that bridges entrenched ideological divisions, and promote consideration of a broader menu of policy options and technologies. The recent advent of several news ventures focused on deeper forms of explanatory, analytical, and data- driven journalism suggest that at least some news industry leaders and philanthropists have recognized the need for new types of knowledge- based journalism. These ventures, however, are further evidence that dramatic changes are needed in journalism education.