The government refuses to hear what every independent assessment is saying
For years, Australia has told the world one story about its coalmine methane emissions while satellites have quietly recorded another. New data from the International Energy Agency places Australian coalmine methane output at more than double the figure submitted to the United Nations, reopening a long-standing question about whether the country's climate accounting reflects reality or convenience. Because methane warms the planet with fierce intensity but fades within a human lifetime, the gap between what is reported and what is emitted is not merely bureaucratic — it is a measure of how much time the world may be losing to act.
- Satellites are measuring 1.7 million tonnes of methane rising from Australian coalmines while the government's official UN submission claims just 0.82 million tonnes — a discrepancy too large to dismiss as methodology.
- Methane's extraordinary potency — 80 times more heat-trapping than CO2 over 20 years — means every tonne left unaccounted for carries outsized consequences for the pace of global warming.
- Independent researchers, a UN-backed aerial study, and now the IEA have repeatedly found Australia's coal and gas emissions could be 60 percent or more above official figures, yet the estimation methods remain unchanged.
- Analysts warn that an apparent decline in reported coalmine methane may be an artifact of shifting more emissions to estimation rather than direct measurement, masking the true scale of the problem.
- Australia's government formed an expert review panel in 2024, but with no visible reforms yet and international scrutiny intensifying, the country is described as increasingly isolated in defending its approach.
Australia's coalmines are releasing far more methane into the atmosphere than the country has acknowledged to the United Nations, according to the International Energy Agency's latest Global Methane Tracker. The IEA measured 1.7 million tonnes of methane from Australian coalmines in 2025 — more than double the 0.82 million tonnes in Australia's official submission. The difference is not a technical footnote. It reflects a persistent and widening gulf between government estimates and what independent satellite measurements are recording overhead.
The stakes are sharpened by methane's particular role in the climate system. Responsible for roughly 30 percent of warming since the Industrial Revolution, methane traps heat about 80 times more effectively than carbon dioxide over a 20-year period. Crucially, it also breaks down in around 12 years — meaning that cutting methane emissions now would produce measurable cooling within a human lifetime, one of the few levers in climate action with near-term visible results.
This is not the first time Australia's figures have been challenged. Earlier IEA assessments suggested coal and gas emissions could be 60 percent higher than reported, and a UN-backed study using aircraft over a single Queensland mine found emissions there were potentially three to eight times the official estimate. Methane analyst Sabina Assan of Ember described the latest findings as a wake-up call, while Australian climate analyst Tim Baxter said the government is 'increasingly isolated' in its defence of its methods, with independent assessments forming what he called 'a large choir' pointing to something fundamentally wrong.
The government's own data shows coalmine methane falling from 1.2 million tonnes in 2007 to 0.8 million tonnes in 2024, but Ember has raised concerns that this apparent improvement may partly reflect a shift toward estimation over direct measurement — a change that can obscure rather than reduce actual emissions. An expert review panel was established in 2024, but no changes to the contested methods have yet emerged, even as Australia's standing as one of the world's largest coal exporters places it under growing international pressure to reconcile its reporting with the science.
Australia's government has been systematically underestimating how much methane its coalmines are releasing into the atmosphere—by more than half, according to new data from the International Energy Agency. The IEA's Global Methane Tracker, released this week, found that Australian coalmines emitted 1.7 million tonnes of methane in 2025. The official figure Australia reported to the United Nations was 0.82 million tonnes. The gap is not a rounding error or a matter of methodology preference. It represents a fundamental mismatch between what the country claims is happening underground and what satellites are actually measuring in the air.
The discrepancy matters because methane is not a minor player in the climate equation. Since the Industrial Revolution, it has been responsible for roughly 30 percent of the planet's warming. Over a 20-year window, methane is about 80 times more potent than carbon dioxide at trapping heat. Unlike CO2, which lingers in the atmosphere for more than a century, methane breaks down in roughly 12 years. This means that cutting methane emissions now produces measurable cooling effects within a human lifetime—a rare opportunity in climate work. The IEA notes that 35 percent of all human-caused methane emissions come from fossil fuel operations, yet emissions from that sector are not falling despite the existence of proven, cost-effective ways to reduce them.
Australia's underestimation is not new. Previous IEA assessments found that the country's coal and gas sector emissions could be 60 percent higher than officially reported. A UN-backed study that flew monitoring equipment over a single Queensland coalmine found emissions there were likely between three and eight times higher than government estimates. Yet the pattern persists. Sabina Assan, a methane analyst at the energy thinktank Ember, said the latest IEA figures show once again that "methane emissions from Australia's coal sector remain drastically under-reported." She called the findings a wake-up call for the government to align its policies with climate science and commit to rapid reductions in coalmine methane—described as one of the cheapest and fastest ways to reduce warming.
The Australian government's official data shows methane from coalmines has fallen from 1.2 million tonnes in 2007 to 0.8 million tonnes in 2024. But Ember has raised a troubling explanation for this apparent improvement: more emissions are being estimated rather than directly measured, which can mask the true scale of the problem. Tim Baxter, an Australian climate and energy analyst, said the government is "increasingly isolated" in defending its estimation methods. "Essentially all independent assessments of Australia's methods reveal enormous gaps," he said. "The IEA's latest report is just one among a large choir singing the tune that there is something very wrong with the way Australia estimates its fossil methane emissions, but the federal government refuses to hear."
The stakes are substantial. Australia is one of the world's largest coal exporters, which Baxter said gives the country a major responsibility to cut methane from its mines. Cutting coalmine methane could do "an outsized amount of good while we work on reducing the use of fossil fuels everywhere we can," he argued. For context, Australia's agricultural sector currently ranks as the country's largest methane emitter at 2.25 million tonnes, compared with 1.17 million tonnes from the energy industry—a gap that would narrow significantly if the IEA's figures were incorporated into official accounting. In 2024, the government formed an expert panel to review how methane is being measured, but the panel's work has not yet produced visible changes to the estimation methods that independent researchers continue to challenge.
Citas Notables
Methane emissions from Australia's coal sector remain drastically under-reported, and the government should commit to rapid cuts in coalmine methane—one of the cheapest and fastest ways to reduce warming.— Sabina Assan, methane analyst at Ember
The Australian government is increasingly isolated when it comes to defending its coalmine methane estimation methods. Essentially all independent assessments reveal enormous gaps.— Tim Baxter, Australian climate and energy analyst
La Conversación del Hearth Otra perspectiva de la historia
Why does it matter that Australia's numbers are wrong if the methane is being released either way?
Because what you measure shapes what you're willing to do about it. If the government thinks coalmines are emitting 0.82 million tonnes, it sets one level of urgency. If the real number is 1.7 million tonnes, the case for action becomes undeniable.
But Australia has been reducing its reported coalmine methane for years. Isn't that progress?
That's the trap. The reductions look good on paper, but Ember found that more of those numbers are now estimates rather than direct measurements. It's like saying your debt is shrinking because you stopped counting some of your bills.
What would actually fixing this look like?
Switching to satellite monitoring like the IEA uses, for one. But more fundamentally, it means the government has to stop defending methods that every independent assessment says are broken.
Is there a reason Australia would want to underestimate?
Not explicitly. But if your official numbers are low, the political pressure to act is lower. The incentives align, even if no one's consciously choosing to be dishonest.
How quickly could Australia actually reduce these emissions if it wanted to?
That's what makes this urgent. Methane breaks down in 12 years, unlike CO2. Cuts now produce real cooling within a generation. It's one of the few climate levers that works on a human timescale.