Discourse analysis is the examination of argumentative structure in documents and other written or spoken statements and practices. Discourse is defined as an ensemble of ideas, concepts, and categories through which meaning is given to social and physical phenomenon, and which is produced and reproduced through and identifiable set of practices. It can refer to a particular tradition in dealing with environmental problems, with its particular ideas about the role of a pollution inspectorate and its particular notions on what industries should do in response. Argumentative discourse analysis (ADA) is the examination of what is being said to whom, and in what context. This emphasis on argumentation as interplay in the context of practices puts methodological constraints by which data can be interpreted and assessed. Discourses are reproduced by the personal qualities of the actors and also by the specific features of the settings in which they operate.