Featuring an original introduction by the editors, this important collection of essays explores the main issues surrounding the regulation of the environment. The expert contributors illustrate that regulating the environment in the UK is conceptually complex, involves a diverse range of institutions, techniques and methodologies and crosses geographical and national boundaries. In the USA it is more formalised, juridical, adversarial and formally dependent upon legal rules. The articles highlight the fact that despite differences in the UK and the USA's regulatory styles, environmental regulation today has much in common with both traditions.