Extract Act against Unfair Competition, Sec. 5(1),(2) No. 1 – Klimaneutral [Climate-Neutral] Official headnotes (translated from the German by David Wright-Policepayeh) a) The question whether advertising with environmental protection terms (here: ‘climate-neutral’) and labels is misleading, is – like health-related advertising – subject to strict requirements concerning the accuracy, unambiguity and clarity of the advertising claims (continuation of judgments of the Federal Supreme Court, 20 October 1988 – I ZR 219/87, BGHZ 105, 277 [juris para. 14] – Umweltengel; 20 October 1988 – I ZR 238/87, GRUR 1991, 546 [juris para. 26] = WRP 1989, 163 – Aus Altpapier; 4 October 1990 – I ZR 39/89, GRUR 1991, 550 [juris para. 13] = WRP 1991, 159 – Zaunlasur; 14 December 1995 – I ZR 213/93, GRUR 1996, 367 [juris para. 33 et seq.] = WRP 1996, 290 – Umweltfreundliches Bauen; 23 May 1996 – I ZR 76/94, GRUR 1996, 985 [juris para. 17] = WRP 1996, 1156 – PVC-frei).