REA Centre of Excellence operates since 2001 as part of the Polish Geological Institute, the leading polish geoenvironmental institute. App. 20% of PGI staff is engaged in REA's activities. REA is focused on studies on sustainable management of groundwater resources, marine a biotic environment, human-induced a natural hazards, climatic and environmental changes. REA coordinates a biotic environment research by: organising conferences and workshops; Polish and international research networks; twining agreements with EU centres to promote integration with these organisations and harmonise its activities with EU priorities; training researches from Poland, NAS and NIS; study visits of REA staff to other institutions. The programme is organised in 7 WPs: research themes (WP1-WP5), dissemination (WP6) and coordination (WP7).