Many of us watched in horror this week as Los Angeles was set ablaze by out-of-control bushfires. From my home in Sydney, I wondered: could this happen here? Certainly, many suburban areas in major Australian cities are close to vast tracts of bush that could provide fuel for a fire.

And, another pertinent question: how prepared are Australian cities for such a calamity?

The answers from David Bowman – a professor of pyrogeography and fire science at the University of Tasmania – are sobering.

What’s needed, he writes, is a better plan. Australia must ensure its cities are as fire-ready as its rural areas – and that city dwellers know exactly what to do when disaster strikes.

Sunanda Creagh

Senior Editor

LA is on fire. How will Australia cope when bushfires hit Sydney, Melbourne or another major city?

David Bowman, University of Tasmania

We knew this would happen eventually. We have moved from possible futures to these things now happening. The deferment has ended.

How Santa Ana winds fueled the deadly fires in Southern California

Jon Keeley, University of California, Los Angeles

Where people live today also makes a difference when it comes to fire risk.

Anthony Albanese is already on the campaign trail. It signals the tough election battle ahead

Gregory Melleuish, University of Wollongong

Anthony Albanese won’t want to be the leader of the first incumbent government not be be re-elected after its first term since the 1930s, but it’s an uphill battle.

If Greenland were for sale, what would it be worth? How to put a ‘price tag’ on a territory

Susan Stone, University of South Australia; Jonathan Boymal, RMIT University

Spoiler: it’s tricky. Common valuation approaches run into hurdles when dealing with something as complex as an entire economy.

Trump won’t rule out force to take Greenland – a country with a complex colonial history

Darius von Guttner Sporzynski, Australian Catholic University

Donald Trump first flagged buying Greenland, whose colonial history spans centuries, during his first term. Yesterday, he said he wouldn’t rule out military force.

New study challenges a major theory on why some kangaroos mysteriously went extinct

Sam Arman, Flinders University

Roughly 40,000 years ago, the short-faced cousins of modern kangaroos died out. The cause has been the subject of fierce debate.

Women spend more of their money on health care than men. And no, it’s not just about ‘women’s issues’

Mike Armour, Western Sydney University; Amelia Mardon, Western Sydney University; Danielle Howe, Western Sydney University; Hannah Adler, Griffith University; Michelle O'Shea, Western Sydney University

Women experience more chronic conditions than men, potentially leading to higher health-care costs.

Behind the viral selfie location of Saint Ignatius is a 350-year-old story of an optical illusion

Katrina Grant, University of Sydney

Viral selfie spot Saint Ignatius in Rome has much to teach us about the histories of painting, of understanding the eye, and of religious devotion.

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