Longo, AriannaLongo, Alessandro Y.Basile, ValerioBosco, CristinaGrasso, FrancescaIbrahim, Muhammad OkkySkeppstedt, MariaStede, Manfred2025-02-172025-02-172025-03978-9908-53-114-4https://hdl.handle.net/10062/107185This paper investigates how different online communities perceive and discuss the environmental impact of AI through sentiment analysis and emotion detection. We analyze Reddit discussion from r/artificial and r/climatechange, using pre-trained models fine-tuned on social media data. Our analysis reveals distinct patterns in how these communities engage with AI's environmental implications: the AI community demonstrates a shift from predominantly neutral and positive sentiment in posts to more balanced perspectives in comments, while the climate community maintains a more critical stance throughout discussions. The findings contribute to our understanding of how different communities conceptualize and respond to the environmental challenges of AI development.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttps://creativecommons.org/licenses/by-nc-nd/4.0/Article