This study is a conceptual and descriptive review of the working field of language ecology from a postmodernist perspective. It looks into the pluricentric, holistic, intercultural and multidisciplinary implications of language ecology and English as a lingua franca in a variety of EU glocal, i.e. global and local, sociolinguistic scenarios. Positing a semiotic construct of language as an open and inclusive process and a close interrelationship between language and power dynamics (Bourdieu, 1982,1986,1991), the analysis gives an overview of theoretical questions related to the import of language ecology, diversity, bi/multiligualism and the functional role of English as a lingua franca and lingua mundi in the EU, in a geocentric, contextual, action-oriented and critical approach to language as opposed to the anthropocentric, decontextualized and fractional constructs of 20th century rational structuralism. Grounded in hands-on English-teaching experience, it aims to spotlight the weaknesses of a monolingual and monocultural mindset and focuses on the dilemma between a de facto English dominance and glocal bilingual and multilingual concerns across the European Union. Capitalizing on Foucalt's inspiring paradigm of «problematization» (