**About the Editor**

**Marcelo I. Guzman** holds a Licentiate in Chemistry degree from the National University of Tucuman, Argentina (2000). He received undergraduate and graduate research fellowships from the Research Council of the National University of Tucuman (1999 to 2002), to perform research in various projects in the Organic Chemistry Department. In 2001, he was awarded The Argentine Chemical Society award. In 2002, he was an Andrew W. Mellon Fellow at the Metropolitan Museum of Art (New York), working on Paper and Photograph Conservation in the Sherman Fairchild Center. He earned his Ph.D. at the California Institute of Technology (Caltech, 2007) working on ice chemistry. For his postdoctoral experience, he joined the Origins of Life Initiative at Harvard University as an Origins Fellow. He is currently an Associate Professor of Chemistry and the Principal Investigator of the Environmental Chemistry Laboratory at the University of Kentucky. He has been awarded a National Science Foundation CAREER award at the University of Kentucky. One of his current environmental chemistry developments is the creation of integrated unmanned aerial systems for the environmental monitoring of trace gases.
