Protesters Confront NSW Parliament Over Proposed Hunter Valley Mining Extension

Parents for Climate and climate activists have urged the NSW Government to reject the proposed Hunter Valley Operations coal mine extension, warning of billions of dollars in climate damage and long-term costs for children.

Protesters Confront NSW Parliament Over Proposed Hunter Valley Mining Extension
Image Source: HVO.

Sydney, Australia — Climate activists and parents staged a demonstration outside the New South Wales (NSW) Parliament building in Sydney demanding an immediate rejection of the proposed extension of the Hunter Valley Operations (HVO) coal mining complex.

Organised by the advocacy movement Parents for Climate on Thursday, the demonstration featured giant portraits of children displayed directly outside the legislative building ahead of a critical regulatory decision deadline set for September 4, 2026

If approved, the extension would permit mining activities to continue until 2045 at HVO North and 2042 at HVO South.

Environmental assessments indicate the project would generate an estimated 809 million tonnes of greenhouse gas emissions over its operational lifespan.

Parents for Climate Chief Executive Officer, Nic Seton, criticised the economic rationale behind the proposal, pointing to independent financial projections that highlight severe long-term costs.

“Our kids don't get a say on this mine. They don't get a seat at the table or a vote.

"They just inherit the cost. Today, parents have brought their faces to Parliament so decision-makers can't forget exactly whose future they're deciding on,” Seton said.

“Every parent knows what it means to make decisions for someone who can't yet make them for themselves.

"We spend our lives trying to leave our children better off than we were. We expect our governments to do the same," he said.

According to economic analysis by Parents for Climate, the lifetime emissions from the HVO extension represent an estimated $212 billion in global climate damage, translating to roughly $120 000 per child residing in New South Wales.

Separate projections from the Institute for Energy Economics and Financial Analysis indicate that under specific carbon-cost scenarios, total environmental damages could reach $5,64 billion, nearly offsetting the project's assessed net economic benefit of $5,71 billion to the state economy.

“There is something fundamentally wrong with an economic argument that counts the potential revenue from coal, but leaves out the costs NSW families and their children will be forced to carry,” Seton said.

“NSW now has a choice: another disaster-driving coal extension, or a fair deal for our kids. We cannot keep approving coal today and hand our children the bill tomorrow," he said.

The group urged the NSW government to act on the advice of its Net Zero Commission and recognise that new and expanded coal projects remain incompatible with the state's climate targets.