BBC Radio 4

Rare Earth

Science EN ↓ 71 episodes

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.

Be sure to visit the podcast's website and support the creator: www.bbc.co.uk

Author

BBC Radio 4

Category

Science

Podcast website

www.bbc.co.uk

Latest episode

Sep 18, 2026

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Episodes

Can lawyers save the planet? 18.09.2026

What can the legal system do to protect the environment? Tom Heap and Helen Czerski gather together a panel of legal and environmental experts to discuss their battles for the planet. How much protection does nature have in law at the moment, and do legal rights make any real difference in practice? They debate whether nature should be given official legal rights, like human rights. Today's panel:...

Tentacular: The Wonderful World of the Octopus 11.09.2026

Cornish fishermen this summer have had their usual catch of lobster and crab replaced by voracious octopus. Restaurant menus have had to be wiped and rewritten across the south-west, but what else has changed? Tom Heap and Helen Czerski ask why octopus have such a hold on our imagination and the science world, why the octopus has moved north and what its journey can tell us about the changing ocea...

All In This Together 04.09.2026

Helen Czerski and Tom Heap ask if nature is really red in tooth and claw. Is life all about survival of the fittest or are we all working together on a changing planet? They're joined by Rowan Hooper, author of Togetherness, lichen expert April Windle and Isabel Hardman, assistant editor of the Spectator magazine and author of The Natural Health Service: How Nature Can Mend Your Mind. Together the...

Andy's Green In-Tray 28.08.2026

How will the environment be changed by an Andy Burnham government? As the new parliamentary session opens, Tom Heap and Helen Czerski leaf through the government in-tray to reveal the big decisions that will need to be taken on energy, transport and nature protection. Discussing the issues from Rosebank to wildfires are Sky News Economics Editor, Ed Conway, climate scientist Corrine Le Quéré from...

Volcano 21.08.2026

Helen Czerski and Tom Heap investigate the environmental impact of volcanoes from prehistory to the present day, and find out about their cultural significance in art and literature. On today's panel: Dr Will Hutchison, volcanologist at the University of St Andrews; Hólmfríður Sigurðardóttir, who chairs the Surtsey Research Society in Iceland; and Fiona Stafford, Professor of English Language and...

Drawing Our Future Homes 14.08.2026

Who's the hero that will protect us from the impact of extreme heat, rain and whatever else climate change might throw at us in future? Forget someone in a cape, maybe it's the person quietly sketching buildings on a bit of paper. Architects shape the buildings we live in and rely on - can they change the way they work to make sure that our homes are smart enough to outpace the challenges of clima...

The Sound of Water 27.06.2026

Helen Czerski and Tom Heap discover how new technology lets us listen in to the extraordinary sounds of the planet's waterways. From the deepest ocean to the tributaries, rivers and streams, this is an exploration of the sound made under water by animals, humans, and yes even plants. From the snapping of shrimp to the bark of a John Dory, Tom and Helen ask how sound travels through water, how impo...

Into the Wild 19.06.2026

Is there any true wilderness left on our planet? Tom Heap and Helen Czerski consider the fear and fascination of the wild. They're joined by the writer Cal Flyn who has spent the last few years travelling the world in search of wilderness for her new book The Savage Landscape. Also with them are Steve Carver, professor of Rewilding and Wilderness Science at Leeds University and Sophie Grig, Resear...

Hotter Than Hell 12.06.2026

How can Britain- and the world- prepare itself for extreme heat? Tom Heap and Helen Czerski hear from the experts and from the people facing up to the hottest temperatures on the planet. David Shukman, former BBC Science Editor asks how Britain should react to the threat in his new book, The Response, while Alex Riley, author of Super Natural guides us through the strategies used by animals that t...

Eye of Newt and Toe of Frog 05.06.2026

Amphibians are the most threatened type of vertebrates on the planet since the dinosaurs- and some of the most fascinating. Tom Heap and Helen Czerski are joined by a panel of amphibi-fans to celebrate the very best in frogs, toads, newts and salamanders. What can we do to reverse their rapid decline? Jeanne Tarrant, founder of Anura Africa is an expert on the extraordinary diversity of frog life...

Leaving Fossil Fuels Behind 30.05.2026

Is the conflict in Iran, with its knock-on effect on oil supplies, accelerating the shift away from fossil fuels? Tom Heap and Helen Czerski debate the issues with a panel of experts: Josh Gabbatiss from the environmental journalism website Carbon Brief; Helen Thompson, Professor of Political Economy at Cambridge University; and Cornish farmer Stuart Oates. Producer: Emma Campbell

World of Flowers 22.05.2026

Tom and Helen explore why the evolution of flowers created the world we know today, uncover some of the fascinating ways flowers use shape, colour and scent to bewitch pollinators, and dig into how pollen can reveal the secrets of ancient crime scenes and help us restore lost landscapes. Guests will include writer David George Haskell, pollen expert Michelle Farrell and botanist Sandra Knapp, Dire...

The Joy of Soil 03.04.2026

Beneath our feet is a world wide web that keeps us all alive. Estimated to be the origin of about 97% of the calories we eat, soil is fundamental to life. But it's a whole living world of its own. A biological engine, a carbon sink, and home to an abundance of bacteria, insects and worms. Tom Heap and Helen Czerski find out how soil is made, how it's faring in a world of intensive farming and how...

Hot Sport 27.03.2026

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 waterlog...

America and the Planet 20.03.2026

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-Fenton Assistant Producer: Toby Field Rare Earth...

Lakes, Lochs and Loughs 13.03.2026

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 ag...

Should we still have zoos? 06.03.2026

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 technolo...

Ocean Explorers 27.02.2026

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'...

Love of a Cold Climate 19.12.2025

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 wil...

City Transport: Faster, Cheaper, Greener 12.12.2025

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 moan...

Hiding in Plain Sight 05.12.2025

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 a...

The Evolution of Evolution 01.12.2025

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 Mus...

Fashioning the Future 21.11.2025

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 benea...

COP30: A New Hope? 14.11.2025

For thirty years world leaders have been gathering to negotiate the planet's route away from climate disaster. For thirty years carbon emissions have been rising and hopes have been fading. Is it time to admit defeat and search for a new strategy to persuade corporations and individuals to cut their pollution and save the planet? As the COP30 summit begins in Brazil, Helen Czerski and Tom Heap wil...

Trains on Trial 26.09.2025

It's 200 years since the first passenger rail journey saw George Stephenson’s Locomotion No.1 travel 26 miles between Shildon, Darlington and Stockton. Environmentalists love trains - making a journey by rail can be up to 80% greener than doing it by car - and there are exciting new inventions hoping to make train travel even greener. But can we pin part of the blame for global warming on the inve...

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