AU Brief — Wednesday 23 September 2026
Wednesday 23 September 2026
Good morning: Chalmers outlines a 40-year economic vision, SA Liberals face fresh division after Antic's presidency win, and new research warns tropical nations may lag in recovering from climate change.
Economy
Chalmers Unveils 40-Year Economic Outlook
Treasurer Jim Chalmers has released Treasury's intergenerational report, forecasting Australia's economic outlook over the next 40 years. It flags challenges including geopolitical shifts, the impact of AI, and a coming point where deaths outnumber births in Australia. In a podcast interview with Guardian Australia journalists, Chalmers discussed why he believes the government's policies are positioning the country for future uncertainty.
Sources: Guardian Australia · Guardian Australia
Science & Tech
AI's role in cancer detection weighed against cure claims
Amid bold claims from tech leaders that AI could cure cancer within years, oncologists and researchers say the disease's complexity makes a single cure unlikely. Experts note AI is already showing promise in areas such as medical imaging, including early detection of pancreatic cancer through machine-learning analysis of scans. Specialists interviewed expect AI to improve efficiency, diagnostics and personalised treatment rather than deliver an outright cure in the near future.
Sources: Guardian Australia
Politics
Antic wins SA Liberal presidency amid party division
Federal senator Alex Antic has been elected South Australian Liberal Party president, defeating upper house leader Nicola Centofanti 119 votes to 73. His win has raised concerns among moderates about the party's direction, its relationship with One Nation, and the impact on opposition leader Ashton Hurn's efforts to rebuild support after the Liberals were reduced to five lower house seats at the March state election. Antic said the result showed grassroots political action could achieve outcomes, while critics including pollster Tony Barry and state minister Blair Boyer questioned his influence on the party's electoral prospects.
Sources: Guardian Australia
Culture
Ballet star Osipova prepares stage acting debut
Royal Ballet principal Natalia Osipova is rehearsing her first play, The Standard of Living by James Graham, playing Russian ballerina Lydia Lopokova opposite Rory Kinnear as John Maynard Keynes, directed by Nicholas Hytner. Osipova describes an emotional early rehearsal process, working in her second language and enlisting husband Jason Kittelberger to help with lines. She discusses parallels between dance and acting, her research into the Bloomsbury era, and her shift away from classical 'bravura' ballets toward new artistic challenges.
Sources: Guardian Australia
Weather & Climate
Argentine town studies own glacier flood risk after Nepal disaster
Researchers in Argentina are studying the risk of a glacial lake outburst flood at Laguna Torre near El Chaltén, a trekking town in Santa Cruz province, after August's deadly floods in Nepal. Modelling suggests a landslide from Cerro Solo into the lake could send floodwater to the town within 20 minutes to an hour, potentially destroying its only access bridge and affecting infrastructure such as power and gas supplies. Authorities and local groups are developing Argentina's first early-warning system and evacuation protocols for such an event.
Sources: Guardian Australia
Culture
Robots model hats at China fashion event
In Nantong, China, international milliners watched a robotic display of headwear at the fifth 920 Hat carnival. The image was part of a Guardian photo selection featuring pictures from around the world, including one showing freediving with turtles.
Sources: Guardian Australia
Science & Tech
Study finds tropical nations to lag in climate recovery
Research led by University of Melbourne's Dr Andrew King found that even if global emissions reach net zero, warming inequality between tropical and wealthier higher-latitude nations would persist, potentially for decades. The study, published in Environmental Research Letters, said reaching net zero sooner would limit this inequality. Separately, a UN refugee agency report warned climate change was increasing the risk of statelessness, particularly for Pacific island nations losing land to rising seas.
Sources: Guardian Australia
World
Tehran researcher says war hardens Iranian opinion against US
Writing from Tehran, social researcher Hossein Hamdieh says Donald Trump's calls for Iranians to 'rise up' against their government are not being reflected in conversations he has had since the war began. He notes that even normally state-critical business and social media figures are expressing growing hostility toward the US, citing civilian deaths in places such as Minab, Lamerd, Tehran and a southern village wedding. He argues that dislike of the Islamic Republic increasingly coexists with opposition to a US war, suggesting the conflict may be unifying rather than dividing Iranians.
Sources: Guardian Australia
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