Since the invasion of Ukraine, many commentators have worried Russia might resort to nuclear weapons, either to turn the tide of the war or get itself out of a strategic corner, or even just as a warning to the world about its power.

Nuclear threats are nothing new for Russian President Vladimir Putin. In 2008 he threatened Ukraine and Poland with nuclear retaliation if they were to host a US missile system. And in 2015 the Kremlin said it would target Danish ships with nuclear missiles if Denmark joined a NATO missile defence system.

But are Putin’s nuclear threats a bluff? Probably, writes Russia expert Matt Sussex. In reality, using nuclear weapons in Ukraine would be difficult and risky for Russia for a host of reasons.

However, Sussex notes, this assumes Russia will act rationally. And as there’s no way of being certain about this, “the West must continue to take Russian nuclear posturing seriously – but also with healthy scepticism”.

Liam Petterson

Deputy Editor, Politics + Society

Are Vladimir Putin’s nuclear threats a bluff? In a word – probably

Matthew Sussex, Australian National University

Using nuclear weapons in Ukraine would be difficult and risky for Russia.

The Chalmers graphs: 7.75% inflation, plunging real wages, weak growth

Saul Eslake, University of Tasmania

The treasurer promised a “confronting” economic statement, but it held out hope of only a short spike in inflation and a recovery in real wages.

Grattan on Friday: Jim Chalmers is a good performer, but can he hold the public’s trust through hard times?

Michelle Grattan, University of Canberra

Chalmers must feel an element of deja vu. He was a senior staffer to then treasurer Wayne Swan during the global financial crisis.

Inspiration, mentor and a truly great man: Tim Flannery farewells scientist James Lovelock, who has returned to Gaia at 103

Tim Flannery, The University of Melbourne

Famous for his Gaian theory, James Lovelock was a maverick and a revolutionary thinker.

‘It’s kind of suffocating’: queer young Australians speak about how they feel at school and what they think of politicians

Lucas Walsh, Monash University; Beatriz Gallo Cordoba, Monash University; Blake Cutler, Monash University; Cathy Waite, Monash University

With the Manly footy jumper episode providing yet another reminder of the prejudice LGBTQ+ Australians face, new research looks at the challenges faced by queer young people.

4 in 10 nursing homes have a COVID outbreak and the death rate is high. What’s going wrong?

Hal Swerissen, La Trobe University

Australia should have been better prepared for the predictable winter COVID wave in aged care.

Protecting 30% of Australia’s land and sea by 2030 sounds great - but it’s not what it seems

Benjamin Cooke, RMIT University; Aidan Davison, University of Tasmania; Jamie Kirkpatrick, University of Tasmania; Lilian Pearce, La Trobe University

Australia’s protected areas have grown and grown. But at the same time, ecosystems are falling apart. How can that be?

Friday essay: ambition, our least liked virtue?

Alastair Blanshard, The University of Queensland

Ambition is a two-edged sword: both creative and destructive. Debate about its value has raged since antiquity and there is a long tradition of casting ambitious women as monsters.

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