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Breathing Earth's Ancient PastMore than 2bn years ago, during the Paleoproterozoic era, the Earth's atmosphere began to fill with free oxygen, enabling the rise of aerobic life and, ultimately, humans. This Great Oxidation Event is now being experienced firsthand by visitors to the Museum of Old and New Art (Mona) in Tasmania, where French-Swiss conceptual artist Julian Charrière has created an extraordinary installation that allows people to inhale oxygen that has been trapped in iron ore since that ancient time.When Charrière came up with the concept for what would become 'Breathe,' Mona's owner David Walsh not only approved the project but created a bespoke space for it, recognizing the unique intersection of science, art, and human experience that the installation represents.The Science Behind the Ancient OxygenThe installation is a marvel of scientific ingenuity and artistic vision. Charrière has sourced ancient iron ore from Australia's Pilbara region, which is processed daily in an on-site laboratory. The water is extracted from the ore using specialized machinery, then put through a Hofmann apparatus—a piece of scientific equipment that electrolyzes water—to liberate the trapped oxygen molecules.This pure, ancient oxygen is then released into a specially designed room where visitors can breathe it in, creating a direct connection to the beginning of life on Earth. As Charrière explains: 'I want people to get all the way back to the beginning of the earth. It's like a time machine.' The installation is designed as a solitary experience, with visitors accessing a vault-like corridor reminiscent of a mining drift, flanked by raw sandstone and lined with deep red rocks from the Pilbara.The Immense Timescale of the InstallationThe timescale involved in 'Breathe' is almost incomprehensible. The oxygen visitors inhale has been trapped in iron ore for over 2.4 billion years—since the Great Oxidation Event that transformed Earth's atmosphere and enabled the development of complex life forms. This installation literally connects each visitor to the primordial beginnings of our planet's atmosphere.As visitors walk through the tunnel, the temperature drops as they approach a high-ceilinged cylindrical room, an underground windowless tower where lighting depends on the amount of sun that can be reflected through a small opening above. Walking over tiles made of polished ancient tiger ore, they circle a floor-to-ceiling clear glass tube that houses the Hofmann apparatus. It is here, at a small opening, that visitors have their closest access to Charrière's pure, ancient oxygen.Redefining the Art-Science Experience'Breathe' represents a groundbreaking fusion of scientific methodology and artistic expression, challenging traditional boundaries between disciplines. The installation creates a profound personal experience that connects visitors not just to art, but to the very essence of life on Earth.What makes this installation particularly powerful is its claim that each visitor is the first human being to ever inhale that specific oxygen. As Charrière explains: 'You are breathing something which is so pure and has not been touched by any being before you... And the beauty of the piece is you will carry it until you die. You're going to become a small part of this installation and you become a big part of the great oxygen cycle, and you will only finally free this oxygen once... once you're going in the other world.'This installation is part of a broader trend in contemporary art that incorporates scientific processes and concepts, creating works that are both intellectually stimulating and viscerally impactful.The Future of Scientific Art Installations'Breathe' is opening alongside Charrière's major new exhibition 'Hard Core,' which showcases both the ambition and scientific curiosity of the Berlin-based artist. Individual elements of 'Hard Core' have been exhibited elsewhere in the world, including at the Venice Biennale, but the full exhibition finds its perfect home at Mona, with its exposed rock, industrial aesthetic, and fusion of science with art.As museums and galleries continue to seek innovative ways to engage audiences, installations like 'Breathe' point to a future where art and science are not just displayed together but are fundamentally intertwined in the creative process. This approach has the potential to create more immersive, educational, and thought-provoking experiences that challenge visitors to see the world—and their place in it—in new ways.Charrière's work demonstrates how art can make abstract scientific concepts tangible and personal, creating connections across vast stretches of time and space. As our understanding of the universe expands, art installations like 'Breathe' will play an increasingly important role in helping us process and relate to these profound concepts.

The Jimblebar Beneficiation Project: A Missed Opportunity for DecarbonizationBHP has quietly abandoned plans for a major iron ore processing facility near its Jimblebar open-cut mine in the Pilbara. The project, which was well advanced in 2025, aimed to improve the purity of iron ore to meet global demand, particularly from China. Despite being internally rated as having "excellent social value" and being "well-aligned" to shareholder-endorsed climate plans, the mining giant decided to cancel all further work on the plant.The Economic Trade-off: Marginal Returns vs. Climate GoalsThe decision to scrap the Jimblebar plant was driven by a strict assessment of marginal economics. BHP determined that the project would struggle to compete for capital against other potential investments. This cancellation is part of a broader pattern where the company is either shelving or delaying major projects designed to reduce emissions, including a 50-megawatt solar and 20MW battery project that had board approval.Capital Allocation: The miner is prioritizing projects with higher immediate returns over those that offer long-term environmental benefits.Fleet Strategy: Despite pledging to electrify its fleet, BHP has continued purchasing polluting diesel trucks for Pilbara operations.Quantifying the Impact: Scope-Three Emissions and Market PremiumsThe Jimblebar facility was not just a logistical upgrade; it was a strategic tool for decarbonization. By providing higher quality iron ore, the plant would have allowed steelmakers to reduce their emissions intensity, which is one of the cheapest methods for the industry to cut carbon output.The economic and environmental stakes were significant:Emission Reduction: The project was estimated to reduce scope-three emissions by 1.7m tonnes a year.Comparative Impact: This reduction is equivalent to taking more than 350,000 cars off the road, representing about three-quarters of the entire annual emissions from BHP’s Western Australian iron ore division.Market Premium: Higher quality ore allows BHP to charge customers a premium, creating a potential win-win scenario that was ultimately deemed too marginal.Broader Implications for Australia's Safeguard MechanismThe leaked documents, dubbed the "BHP files," raise serious questions about the efficacy of Australia’s Safeguard Mechanism. This federal policy requires the country's largest polluting industrial facilities to cut greenhouse gas emissions intensity year on year. BHP's decision to delay or cancel green investments suggests that the current policy framework may not be strong enough to compel major miners to prioritize decarbonization over short-term profitability.Future Outlook: The "Net Zero" DilemmaBHP's recent actions indicate a potential shift in its timeline for achieving net-zero goals. By war-gaming options to significantly delay major investments, the company is signaling that its 2050 emissions target may be more aspirational than operational in the near term. Investors and climate advocates will be closely watching whether BHP can reconcile its climate commitments with its capital allocation strategy as global pressure mounts.

BHP’s Diesel Truck Spend Undermines Its 2040 Decarbonisation GoalBHP has continued to allocate hundreds of millions of dollars to diesel haul trucks in the Pilbara, despite internal analysis flagging the move as “misaligned” with its climate‑change strategy.Continued Procurement of Diesel Trucks for Pilbara SitesThe mining giant authorised the purchase of 62 new diesel trucks for the Jimblebar mine, with an estimated cost exceeding $500m. The trucks are intended to operate at Jimblebar and the planned Ministers North mine, where diesel haulage is projected to dominate direct emissions through at least 2041.Jimblebar fleet refurbishment in 2022 aimed to extend service life by 60,000 hours (≈8 years).Original plan targeted full electric replacement in the 2030s.2023 decision shifted to new diesel purchases, citing a “material reduction in cost”.Financial and Emissions Footprint of the Diesel FleetThe $500m outlay represents a significant capital investment in a technology the company has publicly pledged to phase out. Documents note the purchase aligns with a “40% diesel displacement by 2040” target, yet diesel haulage remains the largest source of BHP’s direct greenhouse‑gas emissions in Western Australia.Strategic Implications for BHP’s Climate CommitmentsAustralia’s biggest diesel consumer, BHP’s reliance on diesel trucks threatens the credibility of its broader decarbonisation roadmap, which calls for full diesel displacement by 2040. The company has warned regulators that battery‑electric truck technology is not yet ready for large‑scale deployment, a stance that delays the transition timeline outlined in its 2024 climate action plan.Future Outlook: Electrification Delays and Regulatory PressureWhile BHP claims to be partnering with equipment manufacturers to trial two 240‑ton battery‑electric haul trucks and four electric locomotives, the company acknowledges that “technology is not advanced enough to scale to an operational fleet.” Continued diesel procurement may invite heightened scrutiny from the Environmental Protection Authority and investors demanding alignment with climate targets.

The Global Significance of the Fitzroy RiverThe Martuwarra Fitzroy River, which flows 700km through the Kimberley to King Sound, is considered the last stronghold for sawfish globally and is home to four of the world's five species. This untamed river ecosystem supports largetooth, dwarf, green and narrow sawfish, all protected under national environment laws. The river, its estuary and near-shore marine environment provide a critical habitat that represents what a relatively untouched sawfish population looks like on a global scale.The Water Extraction PlanA Western Australian government proposal aims to increase groundwater allocation from about 32GL to 75.7GL in the Fitzroy River catchment. While the draft water plan, now out for consultation, has proposed no additional surface water allocations and no dams on the river, environmental groups are particularly concerned about the increased groundwater extraction. The underground water stores feed several large pools and wetlands that act as crucial refuges for sawfish and other species during long dry periods.The Ecological ImpactEndangered largetooth sawfish, the largest and most imperilled species, are born at the river's mouth and spend several years inhabiting the river, its tributaries and deep aquifer-fed pools before heading out to sea. Adults can reach up to seven metres in size. Conservationists warn that sawfish won't survive without these refuge pools, which also provide life support for barramundi, a whole range of other fish, freshwater prawns and big trees and vegetation that sustain birds, possums, bats and insects.The Indigenous PerspectiveDr Anne Poelina, executive chair of the Martuwarra Fitzroy River Council, an alliance of elders and young leaders from traditional owners of the catchment, emphasized that water is precious and a life force. She stated that the lived experience of Aboriginal people on country is that the river is already stressed, and continued decline will affect people's lives and livelihoods as well as the environment, including access to clean drinking water and the rising cost of living. Poelina called for more time to gather information before any additional licences are granted.The Scientific ConcernDr Leonardo Guida from the Australian Marine Conservation Society described sawfish as "probably one of the most unique looking animals on the planet." Martin Pritchard from Environs Kimberley noted that the underground water stores that feed refuge pools are "absolutely critical in a landscape that's so hot and dry." Dr Ryan Vogwill, a hydrogeologist, explained that groundwater plays an "incredibly important" role supporting the high biodiversity and cultural values of the river ecosystem during dry periods when surface water isn't flowing.Future OutlookThe WA government's draft water plan requires applicants seeking a licence to demonstrate "sustainable groundwater use" and "protect water-dependent ecosystems and sites of ecological, cultural and social significance." However, conservationists remain concerned about the potential impacts, especially given the failure of a similar water allocation plan in the Pilbara where groundwater aquifers are in decline. The Fitzroy River has national and Aboriginal heritage list status for its outstanding cultural and natural values, making its protection a matter of significant environmental and cultural importance.

Gina Rinehart, Australia's wealthiest person, faces a potentially significant loss of wealth and control over her Pilbara iron ore empire as a court verdict looms in Perth. The Western Australian supreme court judgment will determine whether Rinehart must share the spoils of some of Hancock Prospecting's most lucrative iron ore projects with the family of her late father's business partner, Peter Wright.The dispute centers on the lucrative Hope Downs mining complex near Newman in north-west Western Australia, a joint venture between Hancock Prospecting and Rio Tinto, which delivered a $832m profit to Hancock Prospecting in 2025. The Wright family heirs claim they are entitled to an equal share of the 2.5% royalties coming from Hope Downs to Hancock Prospecting.Hancock Prospecting rejects the claim, arguing it undertook all the work and bore the financial risk of development, making it the legitimate owner of the Hope Downs assets. The judgment, expected to be appealed regardless of the outcome, may also impact Rinehart's children, who have accused their mother of an 'egregious fraud' against them.Rinehart's company and Hancock Prospecting have rejected all claims, with Rinehart's lawyers arguing that her actions were done to right an historic wrong by her father. The court's decision will also inform a separate federal arbitration process that will decide how Hancock Prospecting's shares are divided between the family.In a related development, Hancock Prospecting's latest annual report shows that more than $6.4bn in dividends have been placed in reserve pending the outcome of arbitration.