Australia's Coalition has declared war on arithmetic. After a 3-2 high court majority ruled that NSW's Independent Planning Commission failed to follow its own planning laws by ignoring overseas emissions from the Mount Pleasant coalmine, the Coalition announced it wants to scrap mandatory scope 3 disclosure entirely. The framing — "absurd," "madness," "net zero on steroids" — is designed to make the ruling sound radical. The ruling itself is not. What the high court actually said is narrow. The NSW planning system has required consideration of scope 3 emissions — the greenhouse gases released when exported fossil fuels are burned — for nearly 20 years. The majority found the planning commission hadn't followed that existing law. As University of Melbourne climate law expert Jacqueline Peel put it: "The high court has really just said the quiet part out loud." The provision doesn't block coal approvals; it requires the commission to consider whether to impose conditions on overseas emissions. The Coalition's counterargument rests on the UN climate convention's accounting principle: emissions are assigned to the country where they're released. This is technically correct as a carbon accounting convention. It is also irrelevant to the question of harm. The CO₂ from Australian coal burned in a Japanese power plant warms the same atmosphere, raises the same sea levels, and intensifies the same cyclones regardless of which nation's spreadsheet it sits on. Justice James Edelman wrote that the commission was "distracted by the accounting concepts of the scopes" — mistaking a bookkeeping category for a physical boundary. The fossil fuel industry's alarm is understandable on its own terms. If scope 3 conditions become standard, coal production gets more expensive. That's the entire point. Scope 3 emissions represent the lion's share of an exporter's climate impact. Ignoring them is like a cigarette manufacturer disclaiming responsibility because the cancer happens in the customer's lungs, not the factory. This isn't a fringe legal innovation. The International Court of Justice declared last year that a state's failure to protect the climate from emissions "including through fossil fuel production" may constitute an internationally wrongful act. 141 countries endorsed that opinion. The eight dissenters — Saudi Arabia, Russia, Iran, Belarus, Israel, Yemen, Liberia, and the climate-denying United States — are not the company a country aspiring to credibility wants to keep. New mandatory disclosure rules are being phased in, largest companies first, requiring annual reporting on scope 3 emissions. The Coalition wants these gone. The Nationals leader Matt Canavan called the court ruling "net zero on steroids." But scope 3 accounting doesn't ban fossil fuel exports. It forces transparency about what those exports actually do to the climate — and then asks decision-makers to weigh that information. The resistance isn't to counting. It's to knowing. The trajectory here is global. Legal systems are slowly closing the gap between where emissions are produced and where their effects are felt. Australia, as one of the world's largest fossil fuel exporters, sits at the center of this reckoning. The Coalition's strategy — repeal disclosure, rescind planning rules, ignore the ICJ — amounts to a bet that you can outrun physics with legislation. Twenty years of planning law and a growing international legal consensus suggest otherwise.
