Episodes

  • Can our generation make Earth Day cool again? (Bonus from What On Earth)

    Can our generation make Earth Day cool again? (Bonus from What On Earth)
    Apr 22 2024

    The climate is changing. So are we. On What On Earth, you’ll explore a world of solutions with host Laura Lynch and our team of journalists. In 1970, 20 million people showed up to fight for the environment on the first Earth Day. More than five decades later, is it time for this much tamer global event to return to its radical roots?


    OG organizer Denis Hayes recounts how – amidst other counterculture movements at the time – his team persuaded roughly one in ten Americans to take to the streets. As he approaches 80, Denis offers his singular piece of advice to the next generation of climate leaders. Then, environmental warriors Maria Blancas and Axcelle Campana share ideas on what a reinspired Earth Day could look like – including making it a public holiday.


    More episodes of What On Earth are available at: https://link.chtbl.com/YX9QBtvD


    We love to hear from our listeners and regularly feature them on the show. Have a question or idea? Email Earth@cbc.ca
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    29 mins
  • How do we fix recycling?

    How do we fix recycling?
    Jun 22 2022
    Tai tries to do his part by recycling whenever he can. But it turns out just tossing stuff into the blue bin doesn't do a whole lot: less than 10 percent of our plastic waste actually gets recycled, with the rest either ending up in landfill, burned or shipped overseas! How did we get here? Tai turns to people looking for creative ways to tackle trash around the world, and learns how we can all be more mindful of what we decide to throw away. In this episode Tai talks to: - Calvin Lakhan, research scientist at York University - Olivia Kwok, supervisor of Waste and Diversion Programs with the city of St. Albert - Nate Maynard, Taiwan-based sustainability consultant and environmental researcher - Andrea McKenzie, zero waste project engineer for the city of Vancouver
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    31 mins
  • Why do we laugh?

    Why do we laugh?
    Jun 15 2022
    Laughing makes us feel real good, whether you’re in on the joke or not. But does it serve a specific purpose? Why do we find some jokes hilarious and others to be total groaners? In this episode, Tai peels the science and sociology of laughter down to its evolutionary roots. In this episode Tai talks to: - Sophie Scott, professor of cognitive neuroscience at University College London and stand-up comedian - Andrew Phung, actor, improv comedian and creator of the sitcom Run the Burbs
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    26 mins
  • Are we alone in the universe?

    Are we alone in the universe?
    Jun 8 2022
    So far, the only intelligent life we know of is right here on Earth — us! But could there be life on other planets just waiting to be discovered? In this episode, Tai goes deep in the cosmos to explore how scientists are searching for signs of life beyond our little blue dot, and what their work can tell us about our place in the universe. In this episode Tai talks to: - Nathalie Cabrol, astrobiologist and director of research at the SETI Institute - Jacob Haqq-Misra, senior research investigator at the Blue Marble Space Institute of Science - Heidi White, astrophysicist at the University of Toronto For transcripts of this series, please visit: https://www.cbc.ca/radio/podcastnews/tai-asks-why-transcripts-listen-1.6747759
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    29 mins
  • How do animals know where they’re going?

    How do animals know where they’re going?
    Jun 1 2022
    We know birds can travel large distances day or night, rain or shine, even if they’ve never migrated before. If you confuse a spiny lobster and drop it far from home, it can still find its way back. How do they do that? In this episode, Tai discovers the mysterious and mind-boggling ways animals navigate. In this episode Tai talks to: - David Barrie, researcher and author of Supernavigators: Exploring the Wonders of How Animals Find Their Way - Ken Lohmann, biology professor at the University of North Carolina at Chapel Hill - Samantha Patrick, senior lecturer in marine biology at the University of Liverpool For transcripts of this series, please visit: https://www.cbc.ca/radio/podcastnews/tai-asks-why-transcripts-listen-1.6747759
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    28 mins
  • Why is math so hard to love?

    Why is math so hard to love?
    May 25 2022
    To listeners of this podcast, it’s no secret that Tai loves math. But he knows that a lot of people, including his friends, definitely don’t feel the same way. In this episode, Tai uncovers why math gets such a bad rap, and if there’s any truth to the well-worn phrase: “I’m just not a math person!” In this episode Tai talks to: - Sian Beilock, cognitive scientist and president of Barnard College at Columbia University - Daniel Ansari, Canada Research Chair in Developmental Cognitive Neuroscience & Learning at Western University - Mariam Hazhir, math teacher in Surrey, B.C. For transcripts of this series, please visit: https://www.cbc.ca/radio/podcastnews/tai-asks-why-transcripts-listen-1.6747759
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    29 mins
  • Why do we love junk food so much?

    Why do we love junk food so much?
    May 18 2022
    Pizza, chips, gummy worms and wings — these are a few of Tai’s favourite things! He just can’t get enough of their sugary, fatty, salty goodness, even though he knows they’re not exactly good *for* you. But why does he find those foods so irresistible in the first place? In this episode, Tai unravels the science behind our food cravings and how companies use it to formulate products that hook us in. In this episode Tai talks to: - Yanina Pepino, associate professor in the Department of Food Science and Human Nutrition at the University of Illinois at Urbana-Champaign - Marion Nestle, Professor Emerita of Nutrition, Food Studies & Public Health at New York University - Malek Batal, professor of Public Health Nutrition at the University of Montreal
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    31 mins
  • How reliable are our memories?

    How reliable are our memories?
    May 11 2022
    Whether they're happy, sad or the embarrassing kind we'd rather forget, memories play a big part in our lives. They shape our identities, help us connect with others and allow us to learn from our past. But can we trust that our memories are accurate? In this episode, Tai digs deep into how memory works in the brain, and enlists the help of experts to interpret a particularly scary childhood memory. In this episode Tai talks to: - Ayanna Thomas, professor of psychology at Tufts University - Steve Ramirez, professor of neuroscience at Boston University For transcripts of this series, please visit: https://www.cbc.ca/radio/podcastnews/tai-asks-why-transcripts-listen-1.6747759
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    31 mins