Organisers say around 2000 protestors have marched in Brisbane to reiterate their opposition to Adani's north Queensland coal mine, as questions swirl around who will provide insurance for the controversial project.
Environmentalists, uni students and Indigenous activists disrupted peak hour traffic in Brisbane on Friday, converging at the top of Queen Street in the CBD before marching to ABC headquarters at South Bank.
Wangan and Jagalingou Family Council spokesman Adrian Burragubba told the crowd that First Nations voices opposed to the mine had been "drowned out".
Mr Burragubba is among a group of Traditional Owners challenging the mine's Indigenous land use agreement in the federal court.
"We took five federal court cases up in this country and we’ve lost on every single ground, because the state, the government and the mining industry, the native title legislation, the native title tribunal and everybody waged a war against our council," he said.
"That mine will never go ahead - not on our watch.
"We’re going to stand strong as the First Nations people from the Galilee basin."
Speakers told protestors that "civil disobedience" would be required to stop the mine's construction from progressing.
Adani say construction on the mine has already begun after it secured its last remaining environmental approval from the Queensland Government this month.
But questions remain over who will provide insurance for the project.
American insurance firm Liberty Mutual confirmed it would not insure the mine on Friday, joining 13 of the world's largest insurers who have ruled out their support.
Adani claim they have secured insurance, but have declined to name the company providing it.
“Details on insurance providers for the Carmichael Project are commercial in confidence, however we have the requisite insurance requirements in place," an Adani spokesperson told NITV News in a statement.
There are plans to hold another protest in Brisbane in a fortnight.