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Structure and Content of the Discourse on Climate Change in the Blogosphere: The Big Picture
Authors:Dag Elgesem  Lubos Steskal  Nicholas Diakopoulos
Affiliation:1. dag.elgesem@uib.no
Abstract:Based on the texts of 1.3 million blog posts and the structure of the links between the blogs in which these posts appeared, this study presents an analysis of the discourse on climate change in the English-language blogosphere. Our approach combines community detection with probabilistic topic modeling to show how topics related to climate change are discussed across various parts of the blogosphere. We find that there is one community of predominantly climate skeptical blogs but several accepter communities. The topic analysis reveals a series of issues that are characteristic of the climate change discourse in the blogosphere. Two topics, one related to climate change science and one related to climate change politics, are particularly important for characterizing the discourse. We also find that the distribution of topics over the communities cuts across the divide between skeptics and non-skeptics (accepters) and that there are differences in the patterns of interactions between the skeptics and different groups of accepters.
Keywords:climate change discourse  blogosphere  community detection  topic modeling  skeptics
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