"I learned a new word this week," wrote Randall Bart, "then I had to unlearn it. In an article on Problembar, the people supporting the reintroduction of bears in Italy and Austria were referred to as ambientalists. Was it a new word for people who support the reintroduction of species? I eventually determined that it's the Italian word for environmentalist (ambientalista) mistranslated."
Fonte: Michael Quinion, World Wide Words