Israel Herrera Orozco is Researcher of the Energy System Analysis Unit at the Energy Department in CIEMAT. B.Sc (1997) and PhD (2004) on Chemical Engineering, with emphasis on environmental assessment, by the Industrial University of Santander (Colombia) and Rovira & Virgili University (Spain). He has taken part in more than forty (40) national and international events (courses, congresses, seminars, colloquia), on life cycle analysis (LCA), environmental evaluation, integral management of residues, cleaner production, and environmental and socioeconomic aspects of the energy, some of them supported by the organizing organisms in diverse national and international institutions (Colombia, Mexico, Ecuador and Spain). He is author or co-author of more than twenty articles, communications and collective works, related to his speciality. Currently, he takes part in projects related to the life cycle analysis of energetic chains from biomass, inventory of atmospheric emission, evaluation of impacts. In the LCA area application, he collaborates with different international institutions.