The recent High Court ruling that halted the expansion of MACH Energy’s Mount Pleasant coalmine in New South Wales has sparked debate over the federal government’s role and its earlier support for a United Nations vote on fossil fuel projects. The court found that emissions from exported coal were not properly considered under state law when approving the mine’s development in the upper Hunter Valley, marking a significant moment for climate-related litigation in Australia.
The decision, handed down on Wednesday, has raised concerns among climate activists that similar legal challenges could emerge targeting other fossil fuel projects nationwide. While federal ministers emphasize the ruling’s focus on New South Wales legislation rather than federal policy or international legal opinions, opposition figures have questioned the government’s consistency.
The Albanese government faced criticism over its backing of the International Court of Justice’s (ICJ) advisory opinion on climate change during a United Nations General Assembly vote in May. This advisory opinion suggested that countries supporting fossil fuel production, exploration licenses, and subsidies could be committing an “internationally wrongful act.” Australia was among a group of Western nations voting in favor of the resolution led by Pacific Island countries.
Opposition energy and emissions reduction spokesperson Dan Tehan argued that the government’s support for the ICJ opinion helped set the groundwork for the High Court’s ruling and accused the Albanese administration of sending mixed messages. “Its support of the ICJ decision through the UNGA resolution this year sadly opened the door for such a ruling here in Australia,” Tehan said, adding that the government needed to clarify its position and legislate to address the resulting legal uncertainties.
Climate Change and Energy Minister Chris Bowen declined to comment directly on the court’s judgment while attending the pre-COP31 conference in Fiji, reiterating the principle that court decisions constitute the law regardless of personal or political views. “You’re asking me whether I agree with a decision. A court decision is the law of the land. It’s no matter whether I agree with it or not,” Bowen said.
A government spokesperson emphasized that the ruling pertained to New South Wales legislation and was not a direct consequence of the ICJ advisory opinion. The spokesperson underlined that Australia’s support for the Pacific-led UN resolution reflected a broader commitment to addressing climate change in the region, noting the government had cautioned that backing the resolution did not imply agreement with every aspect of the advisory opinion.
The ICJ’s advisory opinion has been lauded internationally for broadening the understanding of climate responsibility, extending it beyond domestic emissions to include fossil fuels burned overseas after export. While the opinion carries no binding power for Australian courts, legal experts have described it as highly influential for future climate-related cases.
Australia’s ambassador to the United Nations, James Larsen, highlighted the country’s “proud” support for the opinion and acknowledged its important contribution to defining states’ obligations in responding to the climate emergency, while maintaining a nuanced stance on the opinion’s content.
The High Court decision was welcomed by the climate minister of Vanuatu, the Pacific nation that championed the ICJ’s climate advisory opinion, reflecting regional support for stronger legal approaches to fossil fuel accountability.