top of page

7 October 2026

High Court sides with Hunter Valley community in landmark climate ruling on coal approvals
High Court sides with Hunter Valley community in landmark climate ruling on coal approvals

share article → 

In Australia's first climate case to reach the High Court, the Upper Hunter group DAMS HEG has won. The Mount Pleasant coal mine expansion approval remains invalid, and NSW decision-makers must now weigh the local climate impacts of Scope 3 emissions.

The Climate Media Centre reports that the High Court of Australia has ruled in favour of the Denman Aberdeen Muswellbrook Scone Healthy Environment Group (DAMS HEG), a grassroots Upper Hunter community group. It is the first climate change case ever to reach Australia's highest court. Read the full release on Medianet Newshub.


The High Court upheld the unanimous NSW Court of Appeal ruling that the Independent Planning Commission broke a mandatory legal obligation when it approved the expansion of MACH Energy's Mount Pleasant coal mine. The Commission did not consider how emissions from the coal the mine exports (Scope 3 emissions) would affect the local region through more bushfire risk, drought, flooding and extreme heat. The expansion would have produced an extra 870 million tonnes of CO₂, 98% of it from coal burned overseas. The approval remains invalid, and the project must go back for proper assessment.


The ruling sets a binding precedent across the NSW planning system and directly affects 17 coal proposals now in the pipeline. According to the release, it is also expected to serve as a legal template in other states and in future climate cases. As DAMS HEG treasurer Tony Lonergan put it: "This isn't the end of coal overnight. But it is the end of coal mine approvals that look the other way on climate."


Why it matters: For years, Australian governments have argued that the climate damage from exported fossil fuels is someone else's problem. This judgment rejects that argument. Planning authorities now have to take into account how a project's emissions lead to real climate harm for local communities. Communities everywhere, including here in Tasmania, are already living with more fires, floods and heat, so this is an important step towards fossil fuel decisions that count their true cost.


This win also shows what persistent community action can achieve. A small group of locals, many of them retired farmers and teachers, took this case through three levels of court over four years. Congratulations to DAMS HEG, their lawyers at Johnson Legal, and everyone who supported them.

No fluff climate stuff, straight to your inbox.

Our newsletter keeps you in the loop with campaigns, events, research and ways to take action.

More News
29 October 2026
What makes a winning environmental campaign? Six decades of activism hold the answer

Researchers write on The Conversation about what six decades of Australian environmental activism tell us about winning campaigns. Read more on The Conversation.


The research team screened more than 3,700 environmental groups and built a database of 2,139 named campaigns going back to the 1960s. They found that partial success is the most common result. Almost two-thirds (62.5%) of campaigns made at least some progress towards their goal, and about one in five fully achieved it. Victoria's end to native forest logging shows how these partial wins add up. Thirty years of protecting one forest at a time eventually ended the industry.


The study found two things that shaped success:

  1. Clear, specific goals. Campaigns to protect a particular forest or stop a particular project are easier to win, and their wins are easier to measure, than broad systemic goals. 78% of conservation campaigns had some success, compared with 66% of climate campaigns.
  2. The right target. Campaigns aimed at banks were the most successful, with 28 of 30 achieving some success. Campaigns aimed at super funds were close behind. Campaigns aimed at politicians did worst, with only 39% achieving their goal in part or in full.


Why it matters for Tasmania: This is encouraging news for anyone campaigning here, especially for the protection of Tasmania's native forests. The research shows that steady, focused pressure works over time, even when individual wins are only partial. It also backs up campaigns that target banks, super funds and specific decisions, not just politicians.


The authors point to the recent High Court ruling on the Mount Pleasant coal mine as an example of a well-designed campaign: a clear goal, a specific decision to challenge, and a community willing to stay the course. They also note that people are more likely to act when they believe action works. That's a good reason to celebrate every win, however small.

29 October 2026
Stand with Generation Justice: Call on the PM to end coal and gas expansion

Generation Justice writes on their campaign page about the urgent need to end coal and gas expansion in Australia. Read more on Generation Justice.


With two UN Special Rapporteurs raising serious allegations regarding Australia's continued fossil fuel expansion, the gap between Australia's climate rhetoric and its domestic actions is widening. This is a critical moment for climate action, especially as we approach COP31.


Generation Justice is calling on Prime Minister Anthony Albanese to:

  1. Stop approving new coal and gas projects and expansions.
  2. Immediately end subsidies to coal and gas corporations.
  3. Develop a national roadmap to phase out climate pollution in a fast and fair way.

Action required: You can add your name to their open letter by 9 November 2026. Sign the open letter here.

23 October 2026
Satellites detect massive methane plumes above Chevron's Gorgon gas plant

The ABC reports that independent satellite monitoring has detected large, persistent methane plumes above Chevron's Gorgon liquefied natural gas (LNG) plant on Barrow Island, off WA's Pilbara coast. Read more on ABC News.


The Tanager-1 satellite, operated by Carbon Mapper as part of the UN Environment Programme's International Methane Emissions Observatory, picked up the plumes on five passes in a row since November last year. The latest, in late August, recorded an average of about 7.8 tonnes of methane an hour. That is well above the US EPA's threshold for a "super emitter" event, and it led to a UN warning to Chevron. Chevron says satellite data comes with "a wide range of uncertainty". It has not confirmed what caused the emissions or whether they have stopped.


The story also shows a gap in regulation. Federal enquiries were sent back to state regulators because methane falls outside Gorgon's federal approval. The WA government said it was unclear what its role was, though its environment department is now investigating. The plumes add to Gorgon's poor environmental record, which includes a carbon capture and storage system that has drastically underperformed and a gas seep into Barrow Island's surface last year.


Why it matters: According to the UN, methane causes about a quarter of global warming. Cutting it is one of the fastest ways to slow warming in the near term. Gas companies often promote gas as a "transition fuel", but leaks like this undercut that claim, and they show that gas emissions can go unmeasured and unchecked when no level of government takes responsibility. For Tasmanians who care about Australia's climate commitments, the lesson is that strong, independent monitoring and clear rules for fossil fuel companies matter no matter where the infrastructure is.

22 October 2026
NSW Passes Landmark Laws for Human Composting

The Guardian writes on the environmental implications of new end-of-life laws in NSW. Read more on The Guardian.


In a significant step for sustainable living and circular economy principles, NSW has passed legislation allowing for natural organic reduction, also known as human composting. This process transforms a body into fertile soil over approximately 60 days, avoiding the energy-intensive emissions associated with cremation and the land-use requirements of traditional burial.


For Tasmania, this highlights the growing importance of finding low-impact ways to integrate human life cycles with the natural environment. As we move towards a more holistic view of sustainability, even our end-of-life choices can contribute to the restoration of local ecosystems rather than depleting them.

bottom of page