Home  >  The Inquiry  >  What can the world’s biggest iceberg tell us?
The Inquiry
What can the world’s biggest iceberg tell us?
The Inquiry
May 30, 2024

The current record holder for the world’s biggest iceberg is the A23a. Back in 1986 this colossus broke away from an Antarctic ice sheet. This process of breaking off or ‘calving’ as it is known is a natural part of the life cycle of an ice sheet. But A23a then became lodged in the Weddell Sea for more than thirty years, until four years ago a gradual melting allowed the berg to refloat.

Since then it’s been steadily on the move, heading in the same direction as Antarctic icebergs before it, towards the warm waters of the Southern Ocean, where it will eventually shrink from melting.

As it travels, the iceberg has been playing an important role on the ecological environment around it, both in positive and negative ways. So, on this week on The Inquiry, we’re asking ‘What can the world’s biggest iceberg tell us?’

Contributors: Dr. Catherine Walker, Glaciologist, Woods Hole Oceanographic Institution, Massachusetts, USA Dr. Oliver Marsh, Glaciologist, British Antarctic Survey, Cambridge, UK Jemma Wadham, Professor of Glaciology, UiT The Arctic University of Norway Christopher Shuman, Research Associate Professor, NASA Goddard Space Flight Centre, Maryland, USA

Presenter: William Crawley Producer: Jill Collins Researcher: Katie Morgan Editor: Tara McDermott Production Co-ordinator: Ellie Dover

Image Credit: A23a in Antarctica, Jan 2024. Rob Suisted/Reuters/via BBC Images

More Episodes
Jun 23, 2026
Is technology ruining sport?

This year, technology has more influence in officiating sports than ever before.

At the men's World Cup, the role of virtual assistant referee technology (VAR) has been extended to include two more on-pitch scenarios while in tennis, umpires use electric line calling systems (ELC) to make final decisions.

Both bits of kit aim to improve the accuracy. It’s become easier to consider match-defining moments through these tracking and review systems’ specialised cameras. But, this information takes human officials valuable time to analyse.

Football fans criticise VAR for this reason, saying it delays match momentum. Top ranking tennis players Aryna Sabalenka and Alexander Zverev have also complained as these systems are not yet infallible. If technology is as imperfect as a human referee or umpire and can interrupt the fan experience too, why do elite sports rely on it?

This week on The Inquiry we’re asking, ‘Is technology ruining sport?’

Contributors Carlo de Marchis, independent advisor in sports and media technology in Italy

Dr Otto Koblinger, former sports scientist, Munich Technical University, Germany and senior data manager, Saudi Pro League

Professor Odilon Roble, sport philosopher and psychoanalyst, University of Campinas (UNICAMP), Brazil

Matt Moore, associate dean, University of Kentucky’s college of social work, US

Presenter: Tanya Beckett Producer: Evie Yabsley Researcher: Amelia Cox Editor: Tom Bigwood Technical Producer: Nicky Edwards Production Management: Phoebe Lomas and Liam Morrey

(Photo: VAR check. Credit: Dan Mullan/Getty Images)


23min 04sec



Jun 2, 2026
Is Portugal’s drugs policy in need of reform?

In 2001, Portugal decriminalised the possession and use of all illicit drugs. It was a move designed to mitigate the country’s public health crisis, which at the time meant Portugal had one of the worst rates of overdose deaths in Europe, as well as the highest rate of HIV among drug users. Whilst drugs remained illegal, users did not receive a criminal record but were instead referred to rehabilitation and treatment programmes. It was an approach that proved so successful, that it has remained in place for a quarter of a century.

But just over 10 years after its introduction, Portugal’s drugs policy started to come under strain as the country’s economic crisis and subsequent austerity measures led to budget cuts for drug services. More recently the rising cost of living has diverted people’s attention from investment in this field. On top of this, the trafficking of cocaine and newer substances into the country along with changing demographics is putting decriminalisation under strain.

So, on The Inquiry this week, we’re asking ‘Is Portugal’s drugs policy in need of reform?’

Contributors: Joana Teixeira, President of the Board of Directors, Institute for Addictive Behaviours and Dependencies (ICAD), Lisbon, Portugal Luís Mendão, Director General, Grupo de Ativistas em Tratamentos (GAT), Lisbon, Portugal António Leitão da Silva, Chief of Police, Braga, Portugal Keith Humphreys, Esther Ting Memorial Professor of Psychiatry and Behavioral Sciences at Stanford University, California, USA

Presenter: David Baker Producer: Jill Collins Sound engineer: Toby James Editor: Tom Bigwood

(Photo: Discarded syringes and drug paraphernalia. Credit: Andy Buchanan/AFP)


23min 21sec

What can the world’s biggest iceberg tell us?

--:--
--:--