Why is the McDonald's logo red in the USA and green in parts of Europe?

McDonald's/Other, Logopedia

Mcdonalds logo hi-res stock photography and images - Alamy

Why in Italy (I don't know elsewhere) has McDonald's redone the design of its restaurants by leaving red and choosing green? - Quora

ABM Blog Adam Gatley: McDonalds Logo Change

McDonald's logo going green in Europe - FoodBev Media

Do you know why McDonald's logo has the big M? - Quora

McDonalds Logo, symbol, meaning, history, PNG, brand

Italy watchdog ends investigation into McDonald's franchising terms

Do McDonald's signs look different in other countries? If so, why? - Quora

Are green logos really anything new?, McDonald's

branding - why red & yellow is used by the fast food industry

Localisation is your Ally: Visuals do matter., by Lucie Genot

Why in Italy (I don't know elsewhere) has McDonald's redone the design of its restaurants by leaving red and choosing green? - Quora

Golden Arches make way for hamburger and fries after McDonald's Russian exit