A celebration of the wildlife that works while we sleep. Tom Heap and Helen Czerski explore the world of animals that provoke fear and wonder in equal measure.

Producer: Emma Campbell

Rare Earth is produced in collaboration with the Open University

Can the insurance industry save the planet? With the nod from insurance companies a must for everything from coal mines to new homes, is the industry ready and willing to wield its power?

When huge swathes of Los Angeles were destroyed by wildfire in 2025 the spotlight shone on the insurance industry. Would insurers pay out billions of dollars to rebuild in exactly the same way, in exactly the same place, in a region in which the risk of wildfire is only going to increase?

Tom Heap and Helen Czerski take a deep dive into the role of the insurance industry in the climate crisis. Why can new homes in floodplains be insured? Are the rest of us subsidising risky behaviour with our own premiums? And are those in the industry trying to take revolutionary steps to prevent further climate damage?

Contributors include:

Producer: Beth Sagar-Fenton

Rare Earth is produced in collaboration with the Open University

80 years since the dropping of the first atomic bomb on Hiroshima, Tom Heap and Helen Czerski ask how our relationship with nuclear power has evolved.

At 8.15 on the morning of the 6th of August 1945 a new era began for this planet. For the first time humankind had the power not just to exploit or damage nature, but to destroy it utterly.

Tom and Helen are joined by Mark Lynas, author of Six Minutes to Winter: Nuclear War and How to Avoid It and by Professor Timothy Mousseau of the University of South Carolina, a biologist who has studied the environmental impact of the nuclear disasters at Chernobyl and Fukushima. Also in the studio is Dr Fiona Rayment, President of the Nuclear Institute.

Producer: Alasdair Cross

Assistant Producer: Toby Field

Special thanks to Archie McWatt of the University of the West of England

Rare Earth is produced in association with the Open University

A ban on commercial hunting for whales came into force 40 years ago. Tom Heap and Helen Czerski look back on the whaling industry with one of the last of Shetland's whalers and ask if our largest mammals have bounced back from the extinction that so many species were close to reaching.

They're joined by Jayne Pierce of the South Georgia Heritage Trust, the marine biologist and author of Eat, Poop, Die, Joe Roman and by linguist Inbal Arnon. Joe talks about his latest study for Whale and Dolphin Conservation which reveals the importance of whales in moving nutrients around the ocean while Inbal talks about her work comparing how whales and human babies learn to communicate. Jayne discusses this weekend's festival in Dundee which commemorates Scotland's role in the whaling industry and marks the launch of the Whaler's Memory Bank, a project to capture the voices of the last of the men who spent the British winter in the Antarctic capturing and processing the whales that found their way into our margarines and military hardware until the 1960s.

Special thanks to Gibbie Fraser, Helen Balfour and baby Idris.

Producer: Alasdair Cross

Rare Earth is produced in association with the Open University

The transition to an economy based on renewable energy and electric cars needs huge quantities of materials like copper and rare earth metals. Sourcing them can be a problem. Mining damages the surrounding landscape and many of the materials come from unstable regions with poor records on child labour and environmental regulation. Are there alternative materials or do we simply need to consume less? Tom Heap and Helen Czerski investigate.

Producer: Emma Campbell

Rare Earth is produced in collaboration with the Open University

Datacentres are big business, and vast numbers of them are being built around the world. In the UK, Amazon has announced plans to invest £8bn over the next five years building new datacentres, £3bn has been spent in the UK by Amazon’s cloud computing business since 2020 and Google is spending millions on a new centre in Hertfordshire.

All this data handling is necessary because we're storing more of it and making more complex AI internet searches. The energy cost of this shift is so huge that the big tech companies are commissioning their own nuclear power stations. Each data centre requires energy to run and vast quantities of water to cool it. Both have significant environmental costs, particularly in the hottest and driest regions. Google's greenhouse gas emissions have increased by nearly 50% in the past five years, largely due to the energy demands of Artificial Intelligence.

Tom Heap and Helen Czerski ask if we really need to handle all this data. Are there more efficient ways for us to store and search or should we be coming up with more efficient data centres which exploit renewable energy resources and cool themselves naturally with seawater or Arctic ice?

To answer these big questions for our internet future they're joined by Tom Jackson, Professor of Information and Knowledge Management at Loughborough University Business School, Aurora Gomez Delgado from the campaign group Tu Nube Seca Mi Río (Your Cloud is Drying My River) and Mark Bjornsgaard from the data centre company, Deep Green.

Producer: Alasdair Cross

Rare Earth is produced in association with the Open University

In 2019 the UK made a commitment to reach net zero carbon emissions by 2050. Since then the political consensus has broken down and analysts doubt that current government policy has any chance of reaching the net zero goal. Tom Heap, Helen Czerski and an expert panel stress-test net zero. Is it still achievable? Is it even politically possible in a world of trade wars, Trump's anti-environment agenda and the rise of Reform?

Producer: Emma Campbell

Rare Earth is produced in association with the Open University

Insects are the quiet engineers of the environment - pollinating our plants, balancing our ecosystems and clearing up our waste. Some insects can digest plastic, and they play a vital role in crop production. At the same time their populations are under threat from pesticides, habitat loss and climate change. In this programme, Helen Czerski and Tom Heap explore the largely ignored world of insects. Could they be the answer to some of the environmental problems we have created? Would eating them help lower our carbon footprint, and will the western world ever overcome its squeamishness to the idea? Helen and Tom explore the weird and wonderful world of insects with a panel of experts.

Producer: Emma Campbell

Assistant Producer: Toby Field

Rare Earth is produced in association with the Open University

From ancient Rome onwards our civilisation has been built on concrete. It's incredibly useful but emits huge quantities of carbon dioxide in its production. What are the alternatives? Tom Heap and Helen Czerski explore the issues with a panel of experts: Professor Colin Hills from Greenwich University, Smith Mordak Chief Executive of UK Green Building Council, and structural engineer Roma Agrawal, who worked on the construction of London's tallest building, the Shard.

Producer: Emma Campbell

Assistant Producer: Toby Field

Researcher: Harrison Jones

Rare Earth is produced in association with the Open University

The islands of the Pacific Ocean are on the frontline of climate change. Sea level rise will eventually erase some from the map and make many more uninhabitable. Tom Heap and Helen Czerski hear from the people of the region and explore its stunning wildlife both above and below the waves.

With them in the studio are Professor Tammy Horton from the National Oceanography Centre in Southampton and BBC One Show naturalist, Mike Dilger. Tammy studies- and names- some of the thousands of creatures recently discovered living at depths of 4-6km in the Pacific's Clarion Clipperton Zone, while Mike has just returned from the bird-watching trip of a lifetime, spotting the extraordinary Birds of Paradise of Papua New Guinea.

Samoan climate journalist Lagipoiva Cherelle Jackson joins in the conversation to consider how Pacific islanders respond to the prevailing narratives around climate change. She says that the islanders have no wish to be presented as victims and are well placed to stand up for their rights in international climate negotiations and to actively lead efforts to maintain their rich cultures, despite the rising tides.

Producer: Alasdair Cross

Assistant Producer: Toby Field

Researcher: Harrison Jones

Rare Earth is produced in association with the Open University