BBC Radio 4
Understand
New in Understand: Ten Fights That Made The Green Movement The modern green movement has been shaped not only by protest, but by conflict within the ranks. Shared ideas are forged through friction - battles over tactics, solutions, or who gets a voice. Justin Rowlatt goes to the heart of these battles - to learn about these dramatic moments from the people who were there. Friends, or sometimes enemies, hashing out big ideas that help define what it means to be green. Understand from BBC Radio 4 - unravelling the complexities of the biggest stories and subjects that really matter right now.
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Episodes
US Foreign Policy in Five Doctrines: 4. The Reagan Doctrine 22.01.2026 14:15
Justin Webb looks back at the five big US foreign policy shifts from the Monroe Doctrine to Donald Trump. Over five episodes he and his guests look at how America’s approach to the world has constantly changed over time. This may help answer a really big question - how radical is the way Donald Trump deals with the world? Is he really an outlier in US history? Or do his actions reflect the changin...
US Foreign Policy in Five Doctrines: 3. The Nixon Doctrine 21.01.2026 14:16
Justin Webb looks back at the five big US foreign policy shifts from the Monroe Doctrine to Donald Trump. Over five episodes he and his guests look at how America’s approach to the world has constantly changed over time. This may help answer a really big question - how radical is the way Donald Trump deals with the world? Is he really an outlier in US history? Or do his actions reflect the changin...
US Foreign Policy in Five Doctrines: 2. The Truman Doctrine 20.01.2026 14:24
Justin Webb looks back at the five big US foreign policy shifts from the Monroe Doctrine to Donald Trump. Over five episodes he and his guests look at how America’s approach to the world has constantly changed over time. This may help answer a really big question - how radical is the way Donald Trump deals with the world? Is he really an outlier in US history? Or do his actions reflect the changin...
US Foreign Policy in Five Doctrines: 1. The Monroe Doctrine 19.01.2026 14:23
Justin Webb looks back at the five big US foreign policy shifts from the Monroe Doctrine to Donald Trump. Over five episodes he and his guests look at how America’s approach to the world has constantly changed over time. This may help answer a really big question - how radical is the way Donald Trump deals with the world? Is he really an outlier in US history? Or do his actions reflect the changin...
US Foreign Policy in Five Doctrines: Trailer 16.01.2026 1:32
Justin Webb looks at five big US foreign policy shifts, from Monroe to Trump.
The Trip: 10. Unknown unknowns 01.09.2025 14:45
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: 9. Sacred plants for sale 01.09.2025 14:45
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: 8. A tipping point? 25.08.2025 14:58
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: 7. Fascination and taboo 25.08.2025 14:21
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: 6. Critical periods 18.08.2025 15:27
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: 5. Message in a bottle 18.08.2025 15:37
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: 4. Looking for a cure 11.08.2025 14:44
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: 3. Stranger things 11.08.2025 15:33
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: 2. When the drugs take hold 04.08.2025 14:58
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: 1. Altered States 04.08.2025 15:23
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
The Trip: Introducing The Trip 30.07.2025 3:09
During the early weeks of the pandemic, Tim Hayward spent 14 days in a coma. He remembers this time vividly – his days and nights filled with strange, incandescent visions and hallucinations. That experience is something he would never choose to revisit but, around the world, large numbers of people are deliberately seeking out powerfully altered states. In this ten-part series, Tim sets out to be...
Derailed: The Story of HS2: 10. The Bear Trap 21.07.2025 14:48
The new government is trying to get a grip of HS2, with yet another reset. Kate challenges the new minister, Lord Hendy, on the project’s future and also considers the legacy of HS2. Will Britain ever attempt something like it again? And will its image transform again once trains are actually, finally running? Presenter: Kate Lamble Producer: Robert Nicholson Executive Producer: Will Yates Sound D...
Derailed: The Story of HS2: 9. You Can Do One 21.07.2025 14:30
The arrival of Rishi Sunak in Downing Street revived the hopes of those who wanted to see HS2 cancelled entirely. One leg - to Leeds - had already been chipped away. And on the eve of the Tory party conference in Manchester, Rishi Sunak was persuaded to announce that that city would not now get HS2 either, in the face of intense resistance from the mayors of both Birmingham and Manchester itself....
Derailed: The Story of HS2: 8. Help I’m Under a Digger 21.07.2025 14:26
After successfully defeating a number of fracking projects, a wave of hardened environmentalists join the anti-HS2 protest movement. Locking themselves to fences and ancient trees, civil disobedience arrived at the frontline of building sites. But injunctions and evictions clear the protest camps, and the added cost is a drop in HS2’s very large bucket. The bigger threat to HS2’s national image ar...
Derailed: The Story of HS2: 7. Gold Plated 21.07.2025 14:22
Costs began to truly spiral out of control. In search of the culprit, Kate goes through the mess HS2 made of some its largest contracts. Much of HS2 was being built by massive consortiums of engineering firms. A short lived effort to unload the project’s risk to these firms saw costs continue to rise beyond the original estimates. And, as the price increased, politicians faced further pressure to...
Derailed: The Story of HS2: 6. The Only Friend that Mattered 21.07.2025 14:19
Revelations about waste and delay have left HS2 in poor shape - and ripe, in the view of its political opponents, for cancellation. But, at the opportune moment, a new Prime Minister arrives. Boris Johnson saw HS2 as a cornerstone of his “levelling up” agenda, and gave it the green light to proceed even as the country wrestled with the emergency of a global pandemic. Presenter: Kate Lamble Produce...
Derailed: The Story of HS2: 5. Worry About the Detail Later 14.07.2025 15:00
As HS2 began the process of lining up land along its route for purchase, individuals within the team became deeply concerned. They feared that HS2 was wildly underestimating the eventual costs associated with acquiring the land, as well as the shortage of available specialists and the risks of unfairness to those forced to sell. And, they worried that HS2 was being too slow to reckon with the true...
Derailed: The Story of HS2: 4. Well Done Geoffrey 14.07.2025 14:47
To deal with the growing opposition, the government resolved to commit to HS2 by way of a hybrid bill, which would open up opportunities for local communities to object to the route. The original design became mired in hundreds of expensive mitigations, compromises and compensations. Cheaper above ground sections were replaced by costly tunnels. Cuttings and sound barriers began to line huge parts...
Derailed: The Story of HS2: 3. That can’t be right 14.07.2025 14:50
As specific plans for HS2 were announced, protestors quickly sprang into action, forming campaigning groups and arguing for the line to be fundamentally re-thought. They saw HS2 as an industrial eyesore rammed through the heart of some of Britain’s most beautiful countryside. Communities all along the proposed line were staring down the barrel of massive disruption, from the compulsory purchase of...
Derailed: The Story of HS2: 2. Mutually assured exaggeration 14.07.2025 14:38
As the designs for HS2 took shape, the new team behind it set out to prove its value to Ministers and MPs. But as Kate hears, long term flaws were being baked into the project, with an economic justification that centred on outdated assumptions. And, as the designers sought to make the justification, they adjusted the design - making it more expensive. The focus on speed was exciting - but it also...
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