Australia and Papua New Guinea in February 1985. The Treaty defines sovereignty and maritime boundaries in the area between the two countries. It guides decision makers on protecting the way of life and livelihood of traditional inhabitants, on managing the protection of habitats, and on sharing the commercial and traditional fisheries resources. The Treaty established a Torres Strait Protected Zone within which both nations manage access to fisheries resources. Each country exercises sovereign jurisdiction for resources on either side of the agreed jurisdiction lines. Environmental issues facing the region include the risk of mining waste from the Fly River in southern Papua New Guinea, the adverse effects of global climate change, and the sustainable management of natural resources. People, culture and languages The islands' indigenous inhabitants are the Torres Strait Islanders, one of two ethnically distinct groups of Indigenous Australian peoples. Torres Strait Islanders are distinct from both the Papuans of adjoining New Guinea and from Aboriginal Australian peoples of the nearby Australian mainland, but related to both. The people of the Torres Strait have a unique indigenous culture which has drawn the interest of a range of anthropological, historical, archaeological and folklorist researchers. This includes an expedition from Cambridge University led by the early ethnographer Alfred Haddon in 1898, and the more contemporary regional work of Australian anthropologist Jeremy Beckett. Accounts of local Indigenous narrative traditions can be found in the work of Nonie Sharp and Margaret Lawrie. Lawrie developed strong relationships with the people of the Torres Strait from the 1950s to 1970s, and many approached her to record and write down their personal stories and family histories. This resulted in her conducting research into the cultural history of the Torres Strait and collecting transcripts, audio recordings, photographs, slides, works of art and oral stories. Collectively they formed the basis of the publication Myths and Legends of Torres Strait (1970) and Tales from Torres Strait (1972). Her collection is now held by the State Library of Queensland and in 2008 it was added to UNESCO's Australian Memory of the World Register. Two indigenous languages are spoken on the Torres Strait Islands: Kala Lagaw Ya (also known by variant names and spellings), and Meriam Mir (Meriam), as well as Brokan [Broken], otherwise called Torres Strait Creole. Kala Lagaw Ya is the traditional language owned by the Western and Central islands of the Torres Strait. The Kala Lagaw Ya language