An integrated and interdisciplinary approach to Early Warning and Risk Management is described in this paper as well as the general technical implementation of Early Warning and Risk Management Systems. Based on this systems approach, a concept has been developed for the design of an Integrated System for Coastal Protection. In addition to this, as a prototype implementation of a modern environmental monitoring and surveillance system, a system for the Remote Monitoring of Nuclear Power Plants is presented here in more detail, including a Web Portal to allow for public access. The concept, the architectural design and the user interface of Early Warning and Risk Management Systems have to meet high demands. It is shown that only a close cooperation of all related disciplines and an integrated systems approach is able to fulfil the catalogue of requirements and to provide a suitable solution for environmental monitoring and surveillance, for early warning and for emergency management.