This paper exploits bigdata to explore to what extent Generation Z customers engage in discussing sustainability practices carried out by their service providers when posting a review online. The study identifies the attention Gen Z pays to the environmental and social domains of sustainability, including trend over time and their association with ratings (i.e. customer satisfaction). Text analytics with a specific dictionary developed for the study of sustainability are applied on a dataset of 500.000 hotel reviews, covering six European cities and 10 years. Results reveal how, despite Gen Z is portrayed as the most socially and environmentally conscious generation, often bringing sustainability into their consumption practices, the story is rather different with regards to their discourse online. Gen Z tend to discuss fewer on sustainable practices comparing to other generational cohorts, while the social and environmental dimensions are differently associated with their ratings
