My research is centered on the biogeochemistry of trace elements and natural organic matter degradation in the environment, particularly in extreme environments. In spite of doing some research work in coastal systems (mainly in saltmarshes), in the last decade I’ve been mostly working in Polar Regions. While my research in Antarctica is focuses on the study of the human impact in the southern ecosystems, my work in the Arctic is more dedicated to permafrost thaw ecosystems particularly in studding the role of natural organic matter, including is chemical composition, in greenhouse gases release. With this work, particularly in the Arctic, I am strongly involved in International Scientific Arctic Organizations (International Arctic Science Committee, Arctic monitoring and Assessment Program, etc) and now leading the pan-Arctic research program T-MOSAiC (t-mosaic.com).