We present our work towards application of advanced data mining and integration techniques in the environmental applications domain. The work is being conducted in the scope of the project ADMIRE, a 7th FP ICT project dealing with data mining and integration of distributed data in the grid. Its technology is based mainly on the OGSA-DAI framework, which is also being extended in the project with new activities targeting environmental data access. The focus of this paper is the data integration engine for environmental data, and the three environmental scenarios which will be used in the project to comprehensively test the developed data mining and integration technologies.