An effective protection of our environment is largely dependent on the quality of the available information used to make an appropriate decision. Recently, a new discipline called “Intelligent Environmental Informatics” is emerging. This new discipline integrates environmental science with artificial intelligence (AI) and computer science Using AI concepts and techniques new forms of intelligent decision support systems can be created that allow the computer to act as an intelligent assistant. Such systems focus on strategic decisions and not operational ones. This paper discusses the technical aspects of the intelligent decision support systems in environmental management problems. In addition, the paper identifies the main characteristics of the intelligent environmental decision support systems (IEDSSs).