"Twitter is a key site for understanding the highly polarized and politicized debate around climate change. We examined large datasets comprising about 15 million tweets from different parts of the world referencing climate change and global warming. Our examination of the twenty most active users e ... mploying the term ‘global warming’ are likely to be automated accounts or bots than the most active users employing the term ‘climate change’. We used a mixed method approach including topic modelling, which is a digital method that automatedly identifies the top topics using an algorithm to understand how Twitter users engage with discussions on ‘climate change’ and ‘global warming’. The percentage of the top 400 users who use the term ‘climate change’ and believe it is human-made or anthropogenic (82.5%) is much higher than users who use the term ‘global warming’ and believe in human causation (25.5%). Similarly, the percentage of active users who use the term ‘global warming’ were much more likely to believe it is a results of natural cycles (18%) than active users who use the term ‘climate change’ (5%). We also identified and qualitatively analysed the positions of the most active users. Our findings reveal clear politically polarized views, with many politicians cited and trolled in online discussions, and significant differences reflected in terminology." (Abstract) more

"Dans la première partie, intitulée Repenser l’environnement en tant que commun, les considérations liées à la nécessité d’une approche interdisciplinaire en communication environnementale sont précisées. La deuxième partie, intitulée La question du public et la gouvernance de l’env ... ironnement analyse de manière détaillée les dimensions théoriques et pratiques de la communication environnementale et clarifie la notion de public et les modalités de mise en place des débats publics sur les questions environnementales. La troisième partie de l’ouvrage, intitulée Développement durable et communication de risque, traite de la communication environnementale dans les organisations. S’attardant sur les notions de développement durable et de communication de risque, l’auteur examine le rôle de l’expertise dans les processus communicationnels liés à la gouvernance des questions environnementales." (Dos de couverture) more