Land & environment

Satellite imagery and artificial intelligence can detect with high accuracy two invasive weed species in Australia, posing a new opportunity for defense against these pervasive plants. Research conducted by Charles Darwin University (CDU) and Charles Sturt University (CSU) explored the potential for SkySat satellite imagery and AI algorithms to detect and map African lovegrass (Eragrostis curvula) and bitou bush (Chrysanthemoides monilifera ssp. rotundata).

Kaali King. Few of us know that tin is one of the fastest growing rare-earth mineral commodities in 2025, outstripping lithium, cobalt, silver and graphite. Demand for electronics and EVs, all of which use tin solder (48 per cent of the global tin market) is fuelling the boom.

Roger Underwood. A Bold Endeavour – a history of our work in the Western Australian rangelands is a terrific book. I read it from cover to cover and then went back and read some parts again ... if the political will for action ever arises, best-practice land management systems for the WA rangelands are now known and understood, and could be implemented across the rangelands tomorrow.  This situation can be attributed to the work of that small band of tough, dedicated scientists of the Rangeland Management Branch during its short, but dramatic history. 

The Territory’s 45 million hectares of cattle country is “some of the most intact” land in Australia, something that pastoral families, over more than a century, have achieved not “by locking the country away ... Romy Carey, CEO of the Northern Territory Cattlemen’s Association, is making a powerful point in her group’s current newsletter, as her $1.5 billion a year industry is facing Chinese trade restrictions and criticism over its position on buffel weed.

The Menindee Lakes system is often described as the beating heart of the Darling-Baaka river system, but in the halls of Canberra and Sydney, it is also a vital "battery" for the Murray-Darling Basin. As we move into 2026, the lakes find themselves at the centre of a major policy shift - the "rescoping" of a controversial water-saving project that has pitted engineering efficiency against cultural survival.

The Northern Territory Government takes a holistic, evidence-based approach to sustainably managing water in the Territory. The Cambrian Limestone Aquifer (CLA) is vast and plentiful and contributes to water resources across a large area of the Territory.

The NSW Government has called for community input on recreational opportunities in the proposed Great Koala National Park. Regular ARR.News commentator on koala issues, Vic Jurskis, responds and has some questions for the Environment Minister ... Where do koalas no longer exist in NSW? What is the evidence they existed there when Europeans arrived? What is the evidence they are no longer there? Do you intend to reintroduce them?

Colleen Krestensen. With the repeal of the Kosciuszko Wild Horse Heritage Act 2018 (NSW), the Australian Brumby Alliance and brumby rehoming organisations are deeply concerned that the NSW Government and NPWS will move to quickly slaughter the remaining brumbies by aerial culling or other lethal methods ... The ABA strongly believes that with the brumby population in Kosciuszko National Park now as low as 579 horses, and the perceived density problem addressed, there is time to review how the remaining horses are managed and to make animal welfare an imperative.

On Thursday 15 January 2026, the Minister for the Environment and Water, Murray Watt, announced the Federal Government's decision to list the Lower Murray River System as being of Critically Endangered conservation status pursuant to the Environment Protection and Biodiversity Conservation Act 1999 (Cth). Minister Watt's statement together with early statements from National Farmers' Federation and the Nature Conservation Council of NSW demonstrate some of the points of difference over this contentious decision.

On Friday 9 January, during a day with a Catastrophic Fire Rating, a grassfire started between 2 and 3pm at Fogartys Gap Road in Ravenswood and by 5pm it had crossed Calder Freeway. Emergency warnings to ‘Leave Immediately’ were issued at 7pm for Harcourt and areas to the east towards Sutton Grange. The fire burned through the Harcourt township and travelled up Mount Alexander/Leanganook.

Indigenous Cultural Fire Practitioners and Queensland farmers are working together to improve grazing landscapes using First Nations land management practices, including Cultural Burning - transforming the way food and agricultural systems work.

Mat Dalby. More than 120 people rallied in Denmark on Saturday, calling on the State Government to halt a planned summer prescribed burn in the Walpole–Nornalup National Park. The rally of people from Walpole, Denmark and across the Great Southern followed days of escalating concern of the Department of Biodiversity Conservation and Attraction's plans threatening the last remaining ancient red tingle forest.

A major operation is underway in the Upper Murray and Tallangatta Valley to complete a 300km containment line to bring the Walwa-River Road fire under control … the blaze was started by a lightning strike in the Mt Lawson National Park 25kms west of Walwa on January 5th and has now burnt more than 105,000 hectares and the perimeter stretched around 420kms. To date, there have been nine confirmed house losses, 53 structures (sheds) destroyed and an estimated 10,000 hectares of HVP pine plantation and communication infrastructure at Mt Lawson have been burnt.

The Australian public is being called upon to unite and lend a helping hand to our farmers in need, as they battle the Victorian bushfire crisis - one of the worst in years ... In response to the crisis, Victorian Farmers’ Federation (VFF) - the state’s peak farmer advocacy body - has activated its Disaster Relief Fund...

The State only aims to promptly suppress 80 per cent of bushfires, effectively allowing one in five fires to grow beyond initial attack. According to the Department of Energy, Environment and Climate Action (DEECA) Annual Report 2024–25, the government’s target for “fires contained at first attack and/or within five hectares” sits well below what frontline agencies have actually achieved in each of the past five years.

Caitlin Menadue. A new Dark Sky Policy could put Yorke Peninsula's Port Moorowie on the stargazing map as community consultation draws to a close today, Tuesday, January 13. If adopted, Port Moorowie will become an established Dark Sky Community alongside Carrickalinga on the Fleurieu Peninsula, the first Dark Sky Community in South Australia.

“I was in a grazier’s chopper being shown around, and he made the clear observation that like the surviving cattle, wild pigs are corralling on the islands that have formed in the inland sea that is the flood water. While the flood water presents many challenges, one opportunity would be for real and effective management of the feral pig numbers throughout the Gulf,” the KAP Leader said. 

After seeing the devastating flooding firsthand, it’s clear the only new dams in Queensland are to be found against Queensland Rail (QR) tracks! The Katter’s Australian Party (KAP) Leader, and Member for Traeger has said. Large swathes of built-up rail line with poor drainage in the flood affected areas around Julia Creek are acting as dam walls, preventing flood waters from receding. 

A major milestone in construction of the future Alkimos seawater desalination plant has been achieved, with Western Power installing 5km of 132kV underground cabling between the project site and the existing Yanchep substation.

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae at Toonumbar Dam, about 30 km west of Kyogle. The Red Alert warning applies only to untreated water at the dam.