(Bloomberg) -- Australia succeeded in efforts to prevent the Great Barrier Reef from being listed as endangered by a United Nations organization after a diplomacy blitz.

Members of the United Nations Educational, Scientific and Cultural Organization committee on Friday voted against proposals to add the landmark to a list of at-risk World Heritage Sites, a move that would have triggered demands for additional conservation work.

“Without a site visit, no desired state of conservation, no corrective measure, and the absence of an agreed climate policy, an immediate endangered-listing will only harm the reef, not protect it,” Australia’s Environment Minister Sussan Ley told the committee on Friday.

Australia’s pro-fossil fuel government has rejected demands for tougher action on reef preservation, insisting it is already making improvements through a A$3 billion ($2.2 billion) investment program. The government successfully challenged a previous effort in 2015 to designate the reef as endangered.

The reef, which stretches across an area about the size of Japan, is the Earth’s largest living structure and home to more than 600 types of corals and 1,600 species of fish.

Unesco has pressed for additional action after issuing repeated warnings over the deteriorating condition of the reef. The site has suffered significantly from mass coral bleaching caused by higher sea temperatures, according to a U.N. report published last month.

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