The dominant story in archaeology has long been that humans came to North America around 12,000 years ago. But Indigenous archaeologist Paulette Steeves points to mounting evidence suggesting it was more like 130,000 years ago. *This episode originally aired on Jan. 13, 2022.

They've remained a minority among humans since the dawn of our species, coping with systems and tools arranged for right-handers, and sometimes thriving as a result of their difference. IDEAS explores the history — and latest mysteries — of the 'sinister 10 per cent' to find out what makes a left-hander special. *This episode originally aired on May 2, 2022.

Our relationship with wetlands is nothing if not troubled; swamps, bogs, and marshes have long been cast as wastelands, paved over to make way for agriculture and human development. But with wetlands proving crucial for life, artists, ecologists and activists say we need to rewrite this squelchy story. *This episode originally aired on Oct. 17, 2022.

American arts pioneer Joan Jonas is a central figure in the performance art movement of the late 1960s. This year, New York's Museum of Modern Art organized a major retrospective of her work, which will be on tour in Canada. One of her exhibits is inspired in part by her love for Cape Breton — a 'magical landscape' where she lives in the summer.

Our complicated feelings about life and death are captured in art that uses human remains, says anthropologist Myriam Nafte. Her PhD research looked at how contemporary Western artists incorporate human body parts. This 2014 episode was the first to kick off our decade-long series Ideas from the Trenches, featuring groundbreaking work by PhD students across Canada. Nafte is now an associate adjunct professor at McMaster University. 

Donald Trump’s victory in the 2016 U.S. Presidential election might have been a surprise to some. But to historian Kristin Kobes Du Mez, it was the latest chapter in a long relationship between white American masculinity and evangelical Christianity. As the 2024 election draws near, Du Mez shares how exclusion, patriarchy, and Christian nationalism are the basis for the evangelical church.  

From horror to hope, two expert speakers discuss the stakes and situation facing us now around climate action. Catherine Abreu is a global climate justice advocate, and director of the International Climate Politics Hub. John Valliant is the author of Fire Weather, a finalist for the 2024 Pulitzer Prize for Nonfiction.

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.