We are raiding the Guardian Long Read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2022: Despite the rise of headline-grabbing megafires, fewer fires are burning worldwide now than at any time since antiquity. But this isn’t good news – in banishing fire from sight, we have made its dangers stranger and less predictable. By Daniel Immerwahr. Help support our independent journalism at theguardian.com/longreadpod

During the siege of Leningrad, botanists in charge of an irreplaceable seed collection had to protect it from fire, rodents – and hunger. By Simon Parkin. Help support our independent journalism at theguardian.com/longreadpod

John Calhoun designed an apartment complex for mice to examine the effects of overcrowding. It was hailed as a groundbreaking study of social breakdown, but is largely forgotten. So what happened? By Lee Alan Dugatkin. Help support our independent journalism at theguardian.com/longreadpod

We are raiding the Guardian Long Read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2021: After a painful breakup and the death of her father, one writer retreated to the coast of Brittany in winter where she tested the powerful effects of a daily swim in the icy sea. By Wendell Steavenson. Help support our independent journalism at theguardian.com/longreadpod

In postwar Warsaw, my grandmother Zosia fixed the teeth of prisoners and spies. In doing so, she came into contact with the hidden history of her times in a way few others could. By Jacob Mikanowski. Help support our independent journalism at theguardian.com/longreadpod

Using cutting-edge methods, Alexandra Morton-Hayward is cracking the secrets of ancient brains – even as hers betrays her. By Kermit Pattison. Help support our independent journalism at theguardian.com/longreadpod

We are raiding the Guardian Long Read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2021: Caffeine makes us more energetic, efficient and faster. But we have become so dependent that we need it just to get to our baseline. By Michael Pollan. Help support our independent journalism at theguardian.com/longreadpod

John Burton was just 27 when he was put in charge of creating Thorpe Park’s biggest-ever project. Once too scared to go on rides himself, how did he become the architect of so many daredevils’ dreams? By Tom Lamont. Help support our independent journalism at theguardian.com/longreadpod

Every Monday and Friday for the rest of December we will publish some of our favourite audio long reads of 2023, in case you missed them, with an introduction from the editorial team to explain why we’ve chosen it. From July: In 2024, libraries are unofficial creches, homeless shelters, language schools and asylum support providers – filling the gaps left by a state that has reneged on its responsibilities. By Aida Edemariam. Help support our independent journalism at theguardian.com/longreadpod

Every Monday and Friday for the rest of December we will publish some of our favourite audio long reads of 2023, in case you missed them, with an introduction from the editorial team to explain why we’ve chosen it. From June: Indeterminate sentences are devastating to mental health, but prisoners with mental illness are less likely to be released. The result is a vicious cycle whereby the most vulnerable inmates often have the least chance of getting out – as John’s case shows. By Sophie Atkinson. Help support our independent journalism at theguardian.com/longreadpod