In the early 1990’s, researchers at CRAM became members of a consortium of European teams participating in several EU funded projects. In this framework, a research line was started relating limnological dynamics and the climatic and pollution forcing, in order to develop the concept of high mountain lakes as early warning systems of global change. With this aim, a small field station was built on the shore of Lake Redon in 1996, replacing an old storage cabin that had been previously installed. The field station was equipped with an automatic weather station, water level logger and a field lab with the aim to record hydrological, meteorological and limnological parameters of relevance for environmental monitoring. In close relation to this research line, palaeolimnological studies were also started to reconstruct the environmental history of the Pyrenean lakes.