A conservation group in Australia is making another attempt to halt the Adani’s proposed $16.5 billion Carmichael Mine.

The Australian reported that conservation group Coast and Country has lodged an appeal to the Queensland government’s decision last month to grant Adani a mining lease for the proposed mine in central Queensland.

It is the latest in a series of legal challenges launched by conservationists against Adani’s plans to build the largest-ever coal mine in Australia.

The group lost an earlier legal bid to stop Adani in Queensland’s Land Court after the government issued environmental approval for the mega-mine, set to export up to 60 million tonnes a year to fuel power stations in India.

Solicitor for the Environmental Defender’s Office, which is handling the case, Jo Bragg alleged that the mining lease was unlawful.

“Our client’s case is that the decision by the Queensland Environment Department to issue an Environmental Authority to Adani for the Carmichael mine was not in compliance with the law,’’ she said.

“An examination of the Department’s reasons for making the decision has revealed the Department failed to comply with S5 of the Environmental Protection Act.

“Section 5 of the Environmental Protection Act places a mandatory duty on decision makers to best achieve the ecologically sustainable development purpose of the Act. This is vital because it ensures that Queensland’s environment is protected while allowing for development that improves total quality of life, both now and in the future, in a way that maintains the ecological processes on which life depends.”