In 1859, an American shot a pig that belonged to the Hudson’s Bay Company. Suddenly the U.S. and British Empire were on the brink of war once again. Over the years, tales about the conflict have been embellished and conspiracy theories were invented. But behind the folklore is a story of peace, diplomacy, and how we make meaning out of history.

Two food security experts imagine what it would take to feed a human colony on Mars in the year 2080 if we colonized the red planet. From greenhouse technologies to nanotechnologies, they figure we could have a well-balanced diet on Mars, and argue there are lessons on how to improve our own battered food systems here on Earth. *This episode originally aired on Oct. 4, 2022.

In 2015, the poet-musician Grzegorz Kwiatkowski made a strange discovery at the site of the former Stutthof concentration camp in Poland — something he calls 'a carpet of abandoned shoes.' But these were more than shoes: they're both artifacts and symbols of the Holocaust — as well as a flashpoint of nationalist denialism and historical amnesia. *This episode originally aired on May 2, 2019.

Choose your country. It’s the first step towards finding the healthy variety of patriotic love. But what sort of ‘choice’ is it? IDEAS producer Tom Howell speaks with exiles, nationalists, dual citizens, and people whose ‘country’ doesn’t officially exist, in a quest for peace on fraught terrain: modern patriotism.

Renowned author Robert Macfarlane has described his work as being about the relationship between landscape and the human heart. As part of a series on the elements in the Anthropocene, Macfarlane talks about how that relationship with earth and water has changed. Humanity has become a transformative force, altering the very nature of the elements, with grave implications for the planet — and us.

In October of 1970, the Front de liberation du Quebec (FLQ) escalated their separatist campaign by kidnapping British diplomat James Cross and Quebec Deputy Premier Pierre Laporte, sparking the October Crisis. In return for Cross, the FLQ had seven demands, one of which was the broadcast of its manifesto — and CBC/Radio-Canada complied. IDEAS examines the impact and legacy of the manifesto, and how it still has relevance today. *This episode originally aired on October 13, 2020.

After the Hamas attack on October 7th, encampments popped up across university campuses, followed by intense scrutiny. Underlying the controversies was a simple question: what is a university for? That question has been around for centuries, and it’s come back in full force. Writer Randy Boyagoda makes the case for universities being a place where we can think out loud together.

Twenty-five years ago, reality TV exploded in popularity, and the media panicked. But could shows like Love Is Blind and their like actually help make us more media literate? IDEAS examines the culture, morality, and philosophy of unscripted television. *This episode originally aired on May 6, 2024.