(CNN)The Australian government on Wednesday turned down a proposal for a new open-cut coal mine near the Great Barrier Reef, invoking environmental laws and the risk of "irreversible damage."
The mining project, proposed by controversial Australian businessman Clive Palmer, would have been located less than 10 kilometers (6.2 miles) from the reef on the Queensland coastline, about 700 kilometers (435 miles) northwest of Brisbane.
Tanya Plibersek, the minister for the environment and water, indicated last year that she intended to reject the mine and formalized her decision on Wednesday. She said it was the first time a federal environment minister had used their powers under environmental laws to reject a mine.
In turning down the project, Plibersek cited significant potential environmental dangers to the reef, which is already heavily threatened by climate change.
"The risk of pollution and irreversible damage to the reef is very real. The project would have had unacceptable impacts on freshwater in the area and potentially on fragile seagrass meadows," Plibersek said in a video posted on social media.