Agence France-Presse: Brigitte Bardot, one-time French screen goddess turned animal rights activist, wants the European Union to institute a "Vegetarian Day" as part of the battle against global warming. In a letter this week to European Commission chief Jose Manuel Barrosoa, Bardot said "a few weeks before the Copenhagen climate summit, I would like to draw your attention to the need to question cattle-farming, whose effects on the environment are of concern." Quoting studies by the World Bank and …