Neural topic modeling reveals German television’s climate change coverage

Abstract The implementation and acceptance of climate policies depend on public perceptions of climate change. The media play a crucial role in informing the public discourse. While previous research has predominantly focused on written news, television remains the primary source of information globally. Here, we present an algorithm based on natural language processing techniques for identifying climate change coverage from subtitles of the leading German television news program, Tagesschau . Combining a dictionary approach with neural topic modeling, we classify the topics of over 28,000 news items (2015–2023). Our results show that climate change accounts for 4% of the total coverage, surpassed, for example, by sports coverage (9%). Acute crises, such as COVID-19, are covered more frequently and positioned more prominently. 80% of climate change coverage reports on climate policy, while only 10% covers climate impacts, like weather extremes. The latter tend to be covered in later news slots, indicating lower news value.

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Publication Details

Journal
Communications Earth & Environment
Published
2025-06-06
DOI
https://doi.org/10.1038/s43247-025-02402-1
Citations
3
Primary Topic
Climate Change Communication and Perception
Type
article
Field-Weighted Citation Impact
12.60

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article

Neural topic modeling reveals German television’s climate change coverage

Annika Stechemesser, Leonie Wenz, Jakob Lochner, Tatjana Schirmag
3 citations
Communications Earth & Environment
Climate Change Communication and Perception
12.60
article

Neural topic modeling reveals German television’s climate change coverage

Annika Stechemesser, Leonie Wenz, Jakob Lochner, Tatjana Schirmag
article en
3 citations

Abstract

Abstract The implementation and acceptance of climate policies depend on public perceptions of climate change. The media play a crucial role in informing the public discourse. While previous research has predominantly focused on written news, television remains the primary source of information globally. Here, we present an algorithm based on natural language processing techniques for identifying climate change coverage from subtitles of the leading German television news program, Tagesschau . Combining a dictionary approach with neural topic modeling, we classify the topics of over 28,000 news items (2015–2023). Our results show that climate change accounts for 4% of the total coverage, surpassed, for example, by sports coverage (9%). Acute crises, such as COVID-19, are covered more frequently and positioned more prominently. 80% of climate change coverage reports on climate policy, while only 10% covers climate impacts, like weather extremes. The latter tend to be covered in later news slots, indicating lower news value.

Communications Earth & EnvironmentVol. 6(1)
University of Potsdam (DE), Technische Universität Berlin (DE), Potsdam Institute for Climate Impact Research (DE)
Heinrich Böll Stiftung
Openalex Percentile: Top 2%
Climate Change Communication and Perception
12.60
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