Environmental Research Group Oxford (ERGO), Oxford, United Kingdom, is a company established in 1985, which specializes in applied research for sustainable development and provides a broad spectrum of advisory services relating to environmental assessment, natural resource management, project implementation and technical back-stopping. Avia-GIS established jointly with ERGO a European economic interest grouping: Euro-AEGIS. The aim of this grouping is to join forces into submitting and implementing projects related to the application of remote sensing and spatial information systems in the field of 'health and environment'.