EnTeC project aimed to establish a research infrastructure for Environmental Technology and Climate Research in the field of atmospheric pollution and climate change assessment of the Southeast European region. EnTeC project aimed at combining complementary expertise in areas such as field measurements (Remote/Background monitoring and sampling of key climatic active species and parameters), analytical laboratory techniques (sample processing and analysis), advanced multiscale modelling tools for climate research (both for greenhouse gases and aerosols) and specific cross-cutting issues of mitigation and adaptation to climate change impacts.