Growing polarization around climate change on social media

Max Falkenberg, Alessandro Galeazzi, Maddalena Torricelli, Niccolò Di Marco, Francesca Larosa, Madalina Sas, Amin Mekacher, Warren Pearce, Fabiana Zollo (), Walter Quattrociocchi () and Andrea Baronchelli ()
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Max Falkenberg: City University of London
Alessandro Galeazzi: Ca’ Foscari University of Venice
Maddalena Torricelli: City University of London
Niccolò Di Marco: University of Florence
Francesca Larosa: University College London
Madalina Sas: Imperial College London
Amin Mekacher: City University of London
Warren Pearce: University of Sheffield
Fabiana Zollo: Ca’ Foscari University of Venice
Walter Quattrociocchi: Sapienza University of Rome
Andrea Baronchelli: City University of London

Nature Climate Change, 2022, vol. 12, issue 12, 1114-1121

Abstract: Abstract Climate change and political polarization are two of the twenty-first century’s critical socio-political issues. Here we investigate their intersection by studying the discussion around the United Nations Conference of the Parties on Climate Change (COP) using Twitter data from 2014 to 2021. First, we reveal a large increase in ideological polarization during COP26, following low polarization between COP20 and COP25. Second, we show that this increase is driven by growing right-wing activity, a fourfold increase since COP21 relative to pro-climate groups. Finally, we identify a broad range of ‘climate contrarian’ views during COP26, emphasizing the theme of political hypocrisy as a topic of cross-ideological appeal; contrarian views and accusations of hypocrisy have become key themes in the Twitter climate discussion since 2019. With future climate action reliant on negotiations at COP27 and beyond, our results highlight the importance of monitoring polarization and its impacts in the public climate discourse.

Date: 2022
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DOI: 10.1038/s41558-022-01527-x

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