What on Earth?

CBC Discover & Learn
CBC Discover & Learn

It’s a wild ride these days on our planet. Buckle up, because scientist (and actual pilot) Johanna Wagstaffe is here to help you make sense of our changing world, where the climate is warming just as everything else can feel like a hot mess. Every week, Jo and our team of journalists illuminate the ways humans are transforming Earth, and reveal a little wonder along the way. Our podcast, videos and radio show deliver science-backed answers to your questions, and help you understand what’s a real solution and what’s screwing things up. 

  1. -1 j

    There's a lot on Carney's plate. Is our climate plan cooked?

    As parliament gets back in session, there’s a lot going on: a trade war, talk of Alberta separation, and international alliances being redrawn. Prime Minister Mark Carney has been clear: he doesn’t think the old climate plan he inherited from the Trudeau government holds up to Canada’s new reality. So, where does climate fit in what Carney calls the next “world order?” Two of our political journalists break down what we know so far, and what they’re watching for next. Guests: David Thurton is a senior reporter with CBC’s parliamentary bureau in OttawaAaron Wherry is a senior writer with CBC’s parliamentary bureau in Ottawa Video: Are Canada’s climate plans cooked? Other What On Earth? episodes you might like: Critics say the math isn’t mathing on Ottawa’s climate plans Is Canada really a climate leader? Background reading: Liberals remove layer of review process for energy projects, backing off bypassing at-risk species protections Canadians should prepare for a 5 C hotter future, report warns Carney says Trudeau-era climate plan was 'too expensive' and 'divisive' Have you got something to say about this episode? Email us at earth@cbc.ca

  2. 12 sept.

    Is this Super El Niño a peek into forever weather?

    It’s gonna be a record-breaking few months of weather. A natural surge of warm ocean water is colliding with a planet hotter than at any point in human history – meaning more heat, more floods, more droughts. Some think this Super El Niño offers a window into what climate change will bring, and that it could help us prepare for the decades to come. Scientist Rosa Vásquez Espinoza takes us to Peru, where the phenomenon begins, and where officials have already declared a state of emergency due to heavy, unseasonal rains causing devastation for communities in the Andes and elsewhere. Then, we hear from Andrew Dessler, climate scientist at Texas A&M University, about how this Super El Niño is interacting with climate change and what this year’s weather could teach us about how to adapt to a warmer world. And we wrap with what this all means for Canada. Bill Merryfield from Environment and Climate Change Canada answers pressing questions about the season ahead – such as, “should I buy a ski pass?” Guests: Rosa Vásquez Espinoza, founder of Amazon Research InternacionalAndrew Dessler, Director, Texas Center for Extreme Weather at Texas A&M UniversityBill Merryfield, research scientist with Environment and Climate Change Canada Video: I’ve tracked El Niño for years. I’ve never seen this before Background reading: 'Super' El Niño didn't cause this year's fires and heat waves, but it's about to take us on a 'wild ride' This episode features a clip from Saturday Night Live, created by Lorne Michaels, performed by Chris Farley, 1997, SNL Studios.

  3. 9 sept.

    Introducing our new host, Johanna Wagstaffe

    She's a CBC science journalist, meteorologist and seismologist. Now she’s taking the helm as the host of your favourite climate change podcast. All summer long, Jo and the team have been cooking up new ideas and stories to help you make sense of our changing world, at a time when the climate is warming and everything else can feel like a hot mess. Have we piqued your interest yet? Good. Here’s a quick rundown of what you can expect from the new season.

  4. 5 sept.

    Heat killed his friend. Now his community is saving lives

    Stephen Nelson tried to keep his friend Mario safe in the 2021 heat dome. But tragically, his friend died – in an old building that wasn’t designed for our warming world. This galvanized Stephen to do more to keep his community safe during extreme heat. We visit Vancouver’s Downtown Eastside to meet the tenants, like Stephen, working together to keep each other cool in a changing climate.

  5. 2 sept.

    More heat, more rats, more problems

    From the best of What On Earth: A warmer world is great for rats. (Not so much for us). That’s why cities are seeing a climate-linked rise in rodents. Can birth control reverse that? Producer Molly Segal finds out how Chicago, Manhattan and Vancouver are all trying to make things a little less rattier.

  6. 29 août

    The disaster in Nepal as a ‘wake-up call from Mother Nature’

    The search for survivors is underway after deadly flooding in Nepal and Tibet. But experts around the world are also unpacking what role climate change played in the disaster. We hear from two experts who know the region well, who say people have been warning that something like this was coming as glaciers warm at an alarming rate. And we find out why a better understanding of the impacts of warming on this region could protect lives.

  7. 26 août

    Bats are dying in wind turbines. Here’s how to stop it

    From the best of What On Earth: Bats and wind turbines are both climate darlings. But after Cori Lausen saw a turbine reduce a bat to a "black banana peel," she set out to find another solution. That experience unlocked a years-long search to understand what was happening and how to fix it. The question looms: as we rush to add wind renewables to the grid, will both ever be able to co-exist on the same landscape?

  8. 22 août

    Will Alberta data centres really curb their water use?

    There was booing and calls of bullsh*t during a recent government town hall in Sturgeon County. It’s where tech giant Meta is building its largest data centre outside of the U.S. Locals have a variety of concerns; we’re zooming in on the promise that this facility will use less water. Can the plans for ‘closed-loop’ cooling help fix AI’s thirstiness? We break down what the tech can do, and what’s really happening at data centres already operating.

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À propos

It’s a wild ride these days on our planet. Buckle up, because scientist (and actual pilot) Johanna Wagstaffe is here to help you make sense of our changing world, where the climate is warming just as everything else can feel like a hot mess. Every week, Jo and our team of journalists illuminate the ways humans are transforming Earth, and reveal a little wonder along the way. Our podcast, videos and radio show deliver science-backed answers to your questions, and help you understand what’s a real solution and what’s screwing things up. 

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  • Chaîne
    CBC Discover & Learn
  • Création
    CBC
  • Années d’activité
    2020 - 2026
  • Épisodes
    406
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    Tous publics
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    Copyright © CBC 2026
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    What on Earth?

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