The U.N.’s heritage body expressed concern Wednesday about the state of the Great Barrier Reef, urging Australia to do more to conserve one of the world’s most spectacular natural sites.

UNESCO’s World Heritage Committee held off designating the site as endangered, a move that would have been embarrassing for Australia. But the decision puts pressure on the government to prevent further destruction of the 2,300-kilometer (1,430-mile) reef and requires it to provide progress reports over the coming years.

“At the end of the day what matters is that the current documented declines are halted and reversed,” said Fanny Douvere, a UNESCO spokeswoman.

Australia’s environment minister, Greg Hunt, told the meeting in Bonn, Germany, that his country had “clearly heard” the committee’s concerns and would strive to implement a 35-year conservation plan.

Experts say the Great Barrier Reef’s unique ecosystem is threatened by climate change, waste water, fishing and coastal developments including the use of nearby ports to export coal, all of which harms valuable corals, turtles and dugongs — a species related to manatees.

Environmental group WWF said it wants to see Australia swiftly ban dumping in the reef’s waters.

Photo Credit: FILE - In this undated file photo, a diver swims on Australia's Great Barrier Reef. The United Nations says it is concerned about the state of the Great Barrier Reef and is urging greater efforts to conserve one of the most world’s spectacular natural sites. The decision Wednesday July 1, 2015 in Bonn, Germany, puts pressure on Australia to prevent further destruction of the 2,300-kilometer (1430-mile) reef off the Queensland coast. Brain Cassey / Associated Press