For a very interesting look at the linguistic situation in Libya, check out Lameen Souag’s latest post. He focuses on the Berber minority:
A very large majority of Libyans have Arabic as their mother tongue — in fact, Western Libya was described by the colonial anthropologist Evans-Pritchard as the most Arab place on earth outside Arabia itself. However, the country also has a noteworthy Berber-speaking minority (about 5%, if you dare to trust Ethnologue; it’s not as though anyone’s ever counted them in the past several decades). Most speakers are concentrated in the northwest, where they (traditionally, for once) call themselves Imazighen: the port of Zuwara, along with many towns of the Nafusa mountains, such as Yefren and Nalut. … A quite distinctive Berber language is spoken in the desert oasis of Ghadames on the Algerian border. There is a Tuareg community in the southwest, around Ghat and Ubari. The isolated Berber-speaking communities of Awjila in the southwest and Sokna near the middle are shifting to Arabic (this process is almost complete in Sokna) — their languages are of extreme historical interest and are very inadequately documented.
But he also mentions fascinating nuggets like the Muslim Greek community (whose Greek is almost gone)—what a complicated world we inhabit (and how misguided are the people who want to forcibly simplify it)!