Kostas Eleftheratos graduated from the Department of Environment of the University of the Aegean, received his MSc in Environmental Physics from the Department of Physics of the Aristotle University of Thessaloniki and his PhD on Climatology from the Department of Geology and Geoenvironment of the National and Kapodistrian University of Athens (NKUA).

He has worked as a postdoctoral researcher at the Biomedical Research Foundation of the Academy of Athens. Currently, he is Assistant Professor of Atmospheric Physics with applications to Climatology at the Department of Geology and Geoenvironment of NKUA.

His research focuses on the changes in the composition of the atmosphere on short and long time and space scales (clouds, greenhouse gases, aerosols, ozone, ultraviolet radiation), the study of natural climatic oscillations, atmospheric effects from aircraft emissions, atmospheric pollution, and changes in climatic parameters (air temperature, precipitation).

He has participated in 15 European and 8 national competitive research projects. He has authored or coauthored 33 papers in peer reviewed scientific journals, 21 papers in book chapters/conference proceedings and 52 conference abstracts.