This study explores the notion of contestation in environmental education. Contestation is a process in which self-interested individuals and groups in a social organisation cooperate, compete and negotiate in a complex interaction aimed at solving social problems. A "framework for critique" is developed, comprising technicist, liberal<interpretive and critical paradigms in each of scientific knowledge, educational innovation, educational research and education itself. This framework forms the basis from which a critique is mounted of contesting perspectives in environmental education at international, national and local levels. The thesis argues, firstly, that contestation takes place in the domains of (a) language or "policy in environmental education; (b) organisational strategies aimed at initiating or improving environmental education; (c) educational practices conducted in the name of environmental education; and (d) within perspectives between these domains. The thesis argues, secondly, that the presently dominant techniqist models of innovation expressed in the organisation of environmental education are part of an hegemonic relationship which acts to "technologise" the innovation: they provide an organisational strategy for establishing environmental and educational progress without offering a theory for self-reflection and ideology-critique. The incompatibility of certain contesting perspectives and practices is masked, thus contributing to continuity, rather than reform. The thesis characterises this "educational problem of environmental education" as a series of theory-practice gaps at all levels, where "theory" is the set of beliefs and assumptions held by individual practitioners, and in. terms of which they understand their educational practices. An educational problem exists because these theory-practice gaps exist; the educational problem continues because these theory-practice gaps exist unacknowledged within the infrastructure of environmental education due to the effects of false consciousness and hegemony. The thesis addresses the issue of which of several contesting forms of educational research offers the most coherent response to the educational problem of environmental education, and argues that, for the time being, approaches grounded in the critical social sciences are both the best justified and most promising approaches . to educational research for environmental education.