The Conversation

•

Kanava • 21 ohjelmaa

Ravitsemus

Ravitsemus

Viikoittain
Uutiskommentaarit

Uutiskommentaarit

Viikoittain
Uutiskommentaarit

Uutiskommentaarit

Päivitetty 27.03.2025
Uutiskommentaarit

Uutiskommentaarit

Joka toinen viikko
Fysiikka

Fysiikka

Viikoittain
Uutiset

Uutiset

Päivitetty 06.04.2021
Taide

Taide

Päivitetty 25.03.2021

5 pv sitten

The anatomy of a super El Niño

El Niño has begun and forecasters predict a more than 60% chance that the naturally occurring phenomenon could become a very strong, or super El Niño later in 2026. El Niño begins with warmer water in the Pacific Ocean near the equator and can have a cascade of dramatic effects on the world’s weather. But what chain of events has to happen for high temperatures in the Pacific to translate into severe floods, droughts and storms around the world? And what role does climate change play in El Niño? In this episode, Ioana Colfescu, an expert in climate and machine learning at the University of St Andrews and the University of Edinburgh, explains how El Niño works and what it could mean for the world. This episode was written and produced by Gemma Ware and Mend Mariwany. Mixing by Michelle Macklem and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation. Mentioned in this episode: Voices of the South

5 pv sitten

•

22 min
23.4.

Israel’s history shapes how it wages war

In around ten minutes on April 8, the Israeli military hit more than 100 targets across Lebanon. Israel called the attack Operation Eternal Darkness and said it struck Hezbollah command and control centres. The Lebanese government said at least 300 people were killed and 1,000 injured. Israel has a powerful and lethal army, and it’s been defending itself against attacks from Hamas, Hezbollah and Iran. But why has it chosen such brutal military aggression? One historian, Yaron Peleg, believes the answer to this question lies in the early days of Zionism in the 19th century, when many Jews who arrived in Palestine were fleeing antisemitism in Europe. In defiance, they began a cultural revolution, emphasising military strength and honouring Biblical Jewish heroes. But in the wake of the Holocaust, Peleg, who is a professor of modern Hebrew studies at the University of Cambridge in the UK, thinks Israel’s view of itself began to change. He tracks how he sees Israel’s self‑image changed from self‑reliance to aggressive militarism, and how that history helps to explain the way it wages war today. This episode was produced by Mend Mariwany and the executive producer was Gemma Ware. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation.

23.4.

•

26 min
28.5.

The salt caverns used to stockpile oil

Buried underground in caverns dug out of salt on the Gulf coast of the US are millions of barrels worth of crude oil. This is the Strategic Petroleum Reserve, built up in the late 1970s. Globally, at the end of 2025, global strategic oil stockpiles were estimated at 2.5 billion barrels, with China holding the most. With the Strait of Hormuz now closed for more than two months, global oil supplies are being squeezed. In March, as part of a co-ordinated move by members of the International Energy Agency to release 400 million barrels of oil to prevent price spikes, the US began releasing 172 million barrels from its strategic reserves. In this episode, we speak to Scott Montgomery, a former petroleum geologist who lectures in international studies at the University of Washington, about why these oil stockpiles were built up in the first place, and how they work. This episode was written and produced by Gemma Ware and Katie Flood with production assistance from Katie Flood. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation. Why Middle East gas field attacks could send energy prices soaringWhy the Persian Gulf has more oil and gas than anywhere else on EarthWar in the Middle East made the case for renewables – what’s happening in each country tells a harder storyThe government’s plans to bolster Australia’s fuel stores are sensible – but 5 years too lateOver 400 million barrels will be added to the oil market soon – what are strategic reserves and what can they do?

28.5.

•

24 min
05.04.2023

Will we ever have a fundamental theory of life and consciousness?

What’s the difference between a living collection of matter, such as a tortoise, and an inanimate lump of it, such as a rock? They are, after all, both just made up of non-living atoms. The truth is, we don’t really know yet. Life seems to just somehow emerge from non-living parts. Featuring Jim Al-Khalili, professor of physics at the University of Surrey and Sara Imari Walker professor of physics at Arizona State University. This episode is presented by Miriam Frankel and produced by Hannah Fisher. Executive producers are Jo Adetunji and Gemma Ware. Social media and platform production by Alice Mason, sound design by Eloise Stevens and music by Neeta Sarl. A transcript is available here. Sign up here for a free daily newsletter from The Conversation. Further reading: Life: modern physics can’t explain it – but our new theory, which says time is fundamental, might

05.04.2023

•

48 min
7.5.

China’s long game on Trump’s tariffs

As Xi Jinping prepares to host Donald Trump for a delayed summit in Beijing on May 14-15, a lot has changed since the US president's last visit to China in November 2017. Trump's first trade war with China began in earnest the following year, ushering in a new era of trade tensions between the world's two largest economies. While Trump's second trade war raged in 2025, China reported a record trade surplus of US$1.2 trillion. Yes, direct trade with the US fell sharply, but China shifted its focus elsewhere, doubling down on an existing "great reallocation". In this episode, we speak to economist Jiao Wang at the University of Sussex, about how decisions China took over the past two decades meant it was able to protect itself from the worst of Trump's tariff wars. This episode was produced by Mend Mariwany and the executive producer was Gemma Ware. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation. Supreme Court’s tariff decision still leaves a ‘mess’ for companies trying to grab refundsWith a shrinking population, China needs new drivers of growth. Consumer spending has yet to fill the gapAmid rising tensions, ‘friendshoring’ might keep global trade aliveHave US tariffs failed to bite? China’s trade surplus hits a record US$1.2 trillion

7.5.

•

30 min
30.4.

Trump v Leo: the war of words over a just war

After Donald Trump took to social media to lambast Pope Leo's criticism of the Iran war, the pontiff told journalists "I'm not afraid of the Trump administration". Part of the war of words between Trump and Leo is a question over whether the Iran war is a just one. Just war theory, first articulated by St Augustine in the fifth century, outlines the church’s moral guidelines for political and military leaders to consider before choosing to go to war. But it’s not static, and the church’s own position has become more restrictive in recent years. In this episode, Gerard Powers, the director of Catholic Peace Building Studies at the University of Notre Dame in Indiana, explains how the Catholic church’s just war tradition evolved and the influence it’s had on US military thinking. Powers was a senior advisor on international policy for the U.S. Conference of Catholic Bishops during the Iraq war, and was involved in efforts to persuade the Bush administration not to invade. He sets out the difficulty now facing Catholics serving in the US military, whose archbishop has now spoken out against the war they’re being asked to fight This episode was produced by Katie Flood and Mend Mariwany and the executive producer was Gemma Ware. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation.

30.4.

•

26 min
21.5.

Argentina’s inflation ‘miracle’ is more of a mirage

The month Javier Milei took over as president of Argentina in December 2023, monthly inflation was 25.5%. The annual rate for that year was 211%. Now, it’s plummeted to 32% – still very high, but more stable. Milei, a right-wing populist famous for wielding a chainsaw on stage to make a point about fiscal conservatism, made cutting inflation a central part of his campaign. And yet economists like Can Cinar from City St George's, University of London, warn that Milei’s battle against inflation is more of a mirage, than a miracle. In this episode, Cinar explains how Milei’s government managed to cut inflation by deliberately suppressing people’s wages, and the stark impact these policies are having on Argentinians. This episode was written and produced by Mend Mariwany and Gemma Ware with production assistance from Katie Flood. Mixing by Eleanor Brezzi and theme music by Neeta Sarl. Read the full credits for this episode and sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, an independent, not-for-profit news organisation. Kemi Badenoch says she wants to be Britain’s Javier Milei – but is the Argentinian president a model to follow?What’s inflation – and how exactly do we measure it?Javier Milei’s victory in Argentina’s midterm elections is also a win for TrumpCurrency controls and debt in Argentina: the stakes are high if Milei’s latest economic gamble doesn’t pay offJavier Milei’s inflation ‘miracle’ in Argentina is a warning to the world, not a blueprint

21.5.

•

25 min
08.03.2023

Is time an illusion?

Without a sense of time, leading us from cradle to grave, our lives would make little sense. But on the most fundamental level, physicists aren't sure whether the sort of time we experience exists at all. We talk to three experts and find out if time could potentially be moving backwards as well as forwards. Featuring Sean Carroll, Homewood professor of natural philosophy at Johns Hopkins University, Emily Adlam, postdoctoral associate of the philosophy of physics at Western University and Natalia Ares, Royal Society university research fellow at the University of Oxford. This episode was presented by Miriam Frankel and produced by Hannah Fisher. Executive producers are Jo Adetunji and Gemma Ware. Social media and platform production by Alice Mason, sound design by Eloise Stevens and music by Neeta Sarl. A transcript is available here. Sign up here for a free daily newsletter from The Conversation. Further reading: Quantum mechanics: how the future might influence the pastFour misconceptions about quantum physics

08.03.2023

•

44 min
28.12.2025

The Making of an Autocrat: hijack a party

We used to have a pretty clear idea of what an autocrat was. History is full of examples: Adolf Hitler, Joseph Stalin, Mao Zedong, along with Vladimir Putin and Xi Jinping today. The list goes on. So, where does Donald Trump fit in? In this six-part podcast series, The Making of an Autocrat, we ask six experts on authoritarianism and US politics to explain how exactly an autocrat is made – and whether Trump is on his way to becoming one. Mentioned in this episode: The Making of an Autocrat Follow the feed so you don't miss an episode. The Making of One Nation

28.12.2025

•

17 min
28.12.2025

The Making of an Autocrat: beat the courts

In democratic systems, the courts are a vital check on a leader’s power. They have the ability to overturn laws and, in Donald Trump’s case, the executive orders he has relied on to achieve his goals. Since taking office, Trump has targeted the judiciary with a vengeance. He has attacked what he has called "radical left judges" and is accused of ignoring or evading court orders. The Supreme Court has already handed the Trump administration some key wins in his second term. But several cases now before the court will be pivotal in determining how much power Trump is able to accrue – and what he'll be able to do with it. Mentioned in this episode: The Making of an Autocrat Follow the feed so you don't miss an episode. The Making of One Nation

28.12.2025

•

17 min

Listen to experts explain the world around us and tell the stories behind brand new research. Podcasts from The Conversation, an independent source of news and views, sourced from the academic and research community. Shows in English, French and Bahasa Indonesia. Free to listen.