In 2017, DUH filed a suit against Germany's Federal Motor Transport Authority (KBA), accusing it of failing to act robustly enough over Volkswagen's diesel emissions scandal.
[1] In 2023, DUH lodged a complaint calling for the operating licence of the Floating Storage and Regasification Unit (FSRU) ship Höegh Esperanza at Wilhelmshaven LNG terminal to be shortened by a decade citing its discharging of chlorine and risks to Germany's climate targets.
In the ARD magazine Monitor, the lawyer Joachim Wieland commented on Bilger's stance against the DUH that the policy had long watched in connection with the violations of emission values and did not intervene out of consideration for the automotive industry.
[7] In March 2017, local newspaper Frankfurter Allgemeine Zeitung criticized the organization, calling it "an interest group financing by Cease and desist (Abmahnungen)“.
[8] In February 2024 Focus online reported, that the DUH had made an offer to the lobbying group "Erdgas Mobil" in December 2016 to promote Natural gas as fuel for vehicles as part of its campaign against the Diesel engine.