“…In ScienceDirect 1341 articles and in Scopus 1538 articles can be found containing "footprint" and "life cycle assessment" or "LCA", most of them over the last four years. Different studies have been performed using the life cycle approach for ecological footprint (e.g., Huijbregts et al, 2008;Stoeglehner and Narodoslawsky, 2009), water footprint (e.g., Berger and Finkbeiner, 2010;Jeswani and Azapagic, 2011), carbon footprint (e.g., Strohbach et al, 2012;Filimonau et al, 2011), energy footprint (e.g., Woolridge et al, 2006;Chowdhury et al, 2012), and nitrogen footprint (e.g., Xue and Landis, 2010;Cu cek et al, 2012a). Only a few studies have been performed as yet on social footprints (e.g., Hutchins and Sutherland, 2008;Labuschagne and Brent, 2006).…”