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The Climate Litigation Database

DUH v. Bayer

Geography
Year
2026
Document Type
Litigation

About this case

Filing year
2026
Status
Decided
Court/admin entity
GermanyRegional Court of Cologne
Case category
Suits against corporations, individuals (Global)Corporations (Global)Misleading advertising (Global)
Principal law
GermanyAct Against Unfair Competition

Documents

Filing Date
Document
Type

Summary

The Regional Court of Cologne (Landgericht Köln) issued a default judgment (Versäumnisurteil) against Bayer AG following an action brought by the German Environmental Action (Deutsche Umwelthilfe, DUH) concerning Bayer's advertising of a commitment to achieve “net-zero emissions” across its entire value chain by 2050.

Bayer's advertising stated the 2050 net-zero ambition but provided concrete information only concerning measures planned through 2030. It did not explain how the company intended to achieve net-zero emissions across its full value chain from 2050 onwards. After DUH initiated proceedings, Bayer amended the advertising but did not provide a cease-and-desist declaration. Because Bayer failed to defend the action within the applicable deadline, the court issued a default judgment prohibiting the challenged advertising.