There has not ever been funding specifically assigned to long-term monitoring at the LOOP or its precedent forms. All the activities during its history have been maintained thanks to the concatenation of short-term research projects. In this sense, the collation and re-use of the data produced in such projects to build a general view (in space and time) of the environmental change is an added value to the specific results of each project. A list of the projects that have contributed to the data- and knowledge-base held nowadays at the LOOP can be found here.