Drawing on an extensive range of political, legal and sociological materials, the author presents and evaluates environmental policy-making in France at a time when environmental problems are growing in complexity and gravity. He highlights the range of inputs to the policy process - including popular movements, green parties, interest group representation, EU legislation and international treaties - and evaluates the diverse nature of the outcomes which lead him to conclude that because new developments involve not only changes in policy content but also adaptation of policy style, environmental demands are progressively changing the shape of politics itself.