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Districts in Victoria are bracing for catastrophic bushfire conditions today, with temperatures again soaring above 40°C for much of the state and winds reaching 100 kilometres per hour.
In many other parts of Australia, the dangerous heatwave continues.
So, how can people stay safe?
Fire expert Sarah McColl-Gausden and her colleagues explain what to do if your home is in a district with an extreme or catastrophic fire danger rating. The most important thing is to have a plan in place and not wait for an alert to take action, they write.
Aaron Bach and Fergus O'Connor, experts in how heat affects the body, provide tips on how to tell if older people are not coping with the heat – and what to do.
We’ll have more expert analysis and advice in coming days if conditions continue to worsen, as expected.
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Miki Perkins
Environment & Energy Editor
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Sarah McColl-Gausden, The University of Melbourne; Bianca Pickering, The University of Melbourne; Kate Parkins, The University of Melbourne
For residents in southeastern Australia this week, understanding fire safety warnings are essential to staying safe.
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Digital Storytelling Team, The Conversation
Tracking the Victorian bushfires in Longwood and Mount Lawson.
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Aaron Bach, Griffith University; Fergus O'Connor, Griffith University
Air conditioners are the best defence. But there are other cheap and simple ways to stay cool and reduce your risk of illness.
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Andrew Serdy, University of Southampton
An expert spells out what the international law of the sea has to say on incidents of this sort.
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Jean-Nicolas Bordeleau, Flinders University; Intifar Chowdhury, Flinders University; Rodrigo Praino, Flinders University
What our experts believe will be crucial about the votes in Bangladesh, Brazil, Quebec and the United States.
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James Laurenceson, University of Technology Sydney
With a trillion-dollar trade surplus, is China’s goal really to make everything ‘better and cheaper’ at home? The reality is not so simple.
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Paul Taucher, Murdoch University
In World of War, Geoffrey Robertson calls for more law and better justice, but his arguments are less than compelling.
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Sarah Lawson, Charles Sturt University
These three Bluey episodes retell stories from the Christian, Buddhist and Taoist faiths.
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Environment + Energy
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Luke Jeffrey, Southern Cross University; Chris Greening, Monash University; Damien Maher, Southern Cross University; Pok Man Leung, Monash University
We already knew forests were heavy lifters in reducing climate pollution. New research reveals the tiny microbes in tree bark can also 'eat' climate gases.
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Milad Haghani, The University of Melbourne; Zahra Shahhoseini, Monash University
We tend to adapt quickly to rain. But a growing body of research shows we need to be more careful when it comes to commuting in extreme heat.
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Science + Technology
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Scarlett Howard, Monash University; Adrian Dyer, Monash University; Andrew Greentree, RMIT University
Humans and bees can both work with mathematics. Could aliens do the same?
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Charlie White, Flinders University; Guido J. Parra, Flinders University
Assessing the health of dolphins and whales is notoriously difficult. But new technology can help.
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An Orwellian future?
"Thank you for your article on Donald Trump’s raid on Venezuela foreshadowing a 'great power carve-up of the word'. We seem to be inching closer to George Orwell’s scenario in 1984 where the world was carved into three geographic power regions and each region was, at any given time, in alliance with or at war with each other. This stabilised the power bases as it was deemed easier to control the population if they felt threatened by being in a state of war. 1984 was written as a warning, yet today's autocrats are using it as an instruction manual."
Karin Mogg 
Arrogance and greed
"I, too, am angry about Trump's statements and policies on Greenland and Denmark, alongside other aspects of his presidency, which reveal naked greed, arrogance, and imperial thinking. He is amoral and ignorant, and could initiate yet another war in which the US attacks sovereign nations."
Angela Giblin
School lunches can work
"I grew up with school lunches. There's nothing wrong with it if done properly. That means making sure there are regulatory inspections of facilities and that food is affordable and nutritious."
Theresa Jackson
We'd love to hear from you. You can email us with your thoughts on our stories and each day we'll publish an edited selection.
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