

Rare Earth
BBC Radio 4
Environmental journalist Tom Heap and physicist Helen Czerski tackle major stories about our environment and wildlife, celebrate the wonder of nature and meet the people determined to keep it wonderful.
Episodes
Mentioned books

Mar 27, 2026 • 53min
The Future of Sport
The 2026 World Cup is expected to be the most environmentally costly yet. But are there alternative models that provide sporting thrills without the carbon cost?Helen Czerski and Qasa Alom consider the climate impact of the biggest events and the impact of climate on sport at every level. Whether you're a hugely rich footballer sweltering in a World Cup final or a kid who can't play on a waterlogged pitch, the problem- and perhaps the solution- are the same.Producers: Alasdair Cross and Robin MarkwellAssistant Producer: Toby FieldRare Earth is produced in association with the Open University

Mar 20, 2026 • 52min
America and the Planet
President Trump has been very clear in his views on climate change but how much of his rhetoric will have real impacts on the environment in the US and worldwide? Tom Heap and Helen Czerski are joined by an expert panel to examine the consequences for the planet's temperature and its wildlife of the second Trump administration.Producer: Beth Sagar-FentonAssistant Producer: Toby FieldRare Earth is produced in collaboration with the Open University

Mar 13, 2026 • 53min
Lakes, Lochs and Loughs
Plunge into the chilly embrace of the UK's lakes and you enter troubled waters. They're a place for recreation and an inspiration for our greatest poets but they're also on the frontline in the battle against pollution. The biggest lake in the British Isles, Lough Neagh, is plagued with toxic green algae that sucks the life out of its waters, but nobody seems able to stop the relentless flow of agricultural, industrial and domestic pollution that feed it. Meanwhile, Lake Windermere, birthplace of the Romantic movement, is suffering from a record number of illegal sewage spills that make wildwater swimming a dicey business.Tom Heap and Helen Czerski paddle through the history and legends of our lakes and lochs, search for solutions to their present day problems and celebrate the natural life that still flocks to these beautiful places. Producer: Emma CampbellAssistant Producers: Rebecca Rooney and Toby FieldRare Earth is produced in association with the Open University

Mar 6, 2026 • 53min
Should we still have zoos?
This year London Zoological Society marks its 200th anniversary. Established in 1826, today it has around 8000 animals and claims to be "the original scientific zoo". In this programme, Helen Czerski and Tom Heap look back at the role of zoos across the centuries and ask where their future lies. From public entertainment to conservation projects, do they have a part to play in an age when technology means we can see animals virtually, up-close and in high-definition, without having to keep them in captivity? Tom and Helen visit the former site of Bristol zoo in Clifton, now awaiting development, and are joined in the studio by a panel of experts to discuss the history, future and philosophy of the zoo.Producer: Emma Campbell
Assistant Producers: Toby Field and Rebecca RooneyRare Earth is produced in collaboration with the Open University

Feb 27, 2026 • 54min
Ocean Explorers
150 years ago the British research ship Challenger returned from a three and a half year voyage that changed the world. Plucking species from every ocean, at depths never explored before, the Challenger kick-started the science of oceanography and paved the way for a world connected by undersea communication cables.To celebrate the Challenger's legacy, Helen Czerski and Tom Heap are at the world's biggest ocean science conference in Glasgow to ask what the next 150 years may hold. Is the age of the human explorer over, replaced by robots and DNA sampling, or is there still a space for wonder as we explore the depths of our planet's oceans?With Tom and Helen at the AGU Ocean Sciences Meeting are three top ocean explorers- Kirsty McQuaid from Nelson Mandela University in South Africa, Murray Roberts of Edinburgh University and Sofie Spatharis of Glasgow University.Producer: Alasdair Cross
Assistant Producers: Toby Field and Rebecca RooneyRare Earth is produced in collaboration with the Open University

Dec 19, 2025 • 53min
Love of a Cold Climate
What does the arrival of winter mean for plants and animals? In this programme Tom Heap and Helen Czerski find out how wildlife survives the freezing temperatures and short days of the winter months. In a time of climate change, they also ask how warmer weather patterns are affecting the natural world at this time of year. Do we have to get used to the idea of winters without snow and ice, and will winter scenes of robins on snowy branches and children sledging down hillsides only exist on Christmas cards?Panel: Hugh Warwick, John Hammond, Val McDermidProducer: Emma Campbell
Assistant Producer: Toby FieldProduced in association with the Open University

16 snips
Dec 12, 2025 • 53min
City Transport: Faster, Cheaper, Greener
How we get around town has never been more political, with controversies over low traffic neighbourhoods and 15 minute cities, and rows about congestion charging and public transport breaking out all over the country. Tom and Helen are in search of the kind of consensus that makes things faster, cheaper and smoother for all of us. What works and what’s been a complete flop? Should we all stop moaning and get on our bikes? Who is the reshaping of traffic flows working - and not working - for? And could Milton Keynes have all the answers?With contributions from:Chris Boardman, Commissioner of Active Travel England.
Stephen Potter, Emeritus Professor of Transport Strategy at the Open University
Karen Lucas, Professor of Human Geography at the University of Manchester and Director of the Manchester Urban Institute
Natalie Ashton. Senior Engagement Officer (North) at Transport for All Presenters: Tom Heap & Helen Czerski
Producers: Beth Sagar-Fenton & Alasdair Cross
Assistant Producer: Toby Field
Editor: Alasdair CrossRare Earth is produced in association with the Open University.

Dec 5, 2025 • 53min
Hiding in Plain Sight
We tend to think of wildlife as something which exists in the countryside or in nature reserves, but in fact there are plenty of plants and animals which thrive in an urban environment. In this programme Tom Heap and Helen Czerski explore the species that live alongside us in our towns and cities - finding out what makes a good habitat for them, asking why they're important, and discovering what advantages they bring to the human population. They're joined by a panel of experts: Professor Dawn Scott from Nottingham Trent University, writer Chris Fitch, and founder of Rewild My Street Siân Moxon, who's also Associate Professor Sustainable Architecture at London Metropolitan University.Producer: Emma Campbell
Assistant Producer: Toby FieldRare Earth is produced in association with the Open University

Dec 1, 2025 • 52min
The Evolution of Evolution
190 years ago Charles Darwin stepped ashore in Falmouth at the end of a five year voyage that would transform the way in which we all think about nature. But how does his work and that of his fellow evolutionary theorist, Alfred Russel Wallace stand up in a world of climate change and habitat destruction?To find out, Tom Heap and Helen Czerski are joined by Sandra Knapp of the Natural History Museum, naturalist and broadcaster Mike Dilger and by Armand Marie Leroi, professor of evolutionary developmental biology at Imperial College, London.Producer: Alasdair CrossAssistant Producer: Toby FieldRare Earth is produced in association with the Open University

Nov 21, 2025 • 53min
Fashioning the Future
Whether you love to express yourself through fashion, or find getting dressed a chore, clothing isn’t optional - and every choice has an impact. So how do our fashion choices affect the environment? Who's paying the price? And - most importantly - how can we do things differently? Can individuals and business rethink how we see clothes to prioritise the planet? Tom Heap and Helen Czerski get beneath the surface on this huge subject with Patrick Grant, presenter of The Great British Sewing Bee, hugely influential professor and author Kate Fletcher, and Simon Platts, a sustainability consultant with decades of industry experience. After you listen to this you might never see your clothes the same way again. Featuring:
Patrick Grant - Presenter and entrepreneur
Kate Fletcher - Professor of Sustainability, Design and Fashion Systems in the Manchester School of Art at Manchester Metropolitan University
Simon Platts – Sustainability consultant Skye Pennant
Julian Ellis-Brown & Finlay DuncanPresented by Tom Heap & Helen Czerski
Produced by Beth Sagar-Fenton & Toby Field
Mixed by Ilse Lademann
Editor: Alasdair Cross


