Towards Empowering Consumers through Sentence-level Readability Scoring in German ESG Reports

Benjamin Josef Schüßler, Jakob Prange


Abstract
With the ever-growing urgency of sustainability in the economy and society, and the massive stream of information that comes with it, consumers need reliable access to that information. To address this need, companies began publishing so called Environmental, Social, and Governance (ESG) reports, both voluntarily and forced by law. To serve the public, these reports must be addressed not only to financial experts but also to non-expert audiences. But are they written clearly enough? In this work, we extend an existing sentence-level dataset of German ESG reports with crowdsourced readability annotations. We find that, in general, native speakers perceive sentences in ESG reports as easy to read, but also that readability is subjective. We apply various readability scoring methods and evaluate them regarding their prediction error and correlation with human rankings. Our analysis shows that, while LLM prompting has potential for distinguishing clear from hard-to-read sentences, a small finetuned transformer predicts human readability with the lowest error. Averaging predictions of multiple models can slightly improve the performance at the cost of slower inference.
Anthology ID:
2026.nlp4ecology-1.3
Volume:
Proceedings of the 2nd Workshop on Ecology, Environment, and Natural Language Processing
Month:
May
Year:
2026
Address:
Palma de Mallorca, Spain
Editors:
Francesca Grasso, Valerio Basile, Cristina Bosco, Muhammad Okky Ibrohim, Maria Skeppstedt, Manfred Stede
Venues:
NLP4Ecology | WS
SIG:
Publisher:
European Language Resources Association
Note:
Pages:
26–41
Language:
External URL:
https://lrec.elra.info/lrec2026-ws-nlp4ecology-03
DOI:
10.63317/3jfqkwnxuso3
Bibkey:
Cite (ACL):
Benjamin Josef Schüßler and Jakob Prange. 2026. Towards Empowering Consumers through Sentence-level Readability Scoring in German ESG Reports. In Proceedings of the 2nd Workshop on Ecology, Environment, and Natural Language Processing, pages 26–41, Palma de Mallorca, Spain. European Language Resources Association.
Cite (Informal):
Towards Empowering Consumers through Sentence-level Readability Scoring in German ESG Reports (Schüßler & Prange, NLP4Ecology 2026)
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