In this Totally Cooked episode, Sarah and Iain talk with Professor Lesley Hughes, exploring the concept of biodiversity—what it means, why it matters, and how it connects all life on Earth, from genes to ecosystems. They cover how climate change is accelerating biodiversity loss, particularly in Australia, and the real-world consequences this has for ecosystems, communities, and the economy.

Lesley shares insights from her career in climate science and public advocacy, including her role in the Climate Council and the political challenges surrounding climate communication in Australia. The episode also unpacks how scientists engage with the public and policymakers, and the importance of clear, accessible communication in driving action. Ultimately, it’s a story about resilience, evidence-based advocacy, and how climate scientists have navigated political resistance to keep critical conversations alive.

Whether you want to start your own climate change organisation, learn how one of Australia's best functions, or just love successful women in STEM, this episode is for you.

Iain records Totally Cooked on the lands of the Bunurong People of the Kulin Nation. Sarah records Totally Cooked on the lands of the Ngunnawal and Ngambri people. We pay our respects to Elders past, present, and emerging and recognise their unique and continuing connection to the land, skies, waters, plants and animals.

See omnystudio.com/listener for privacy information.

In this Totally Cooked movie special, hosts Sarah Perkins-Kirkpatrick and Iain Strachan are joined by returning guest Dr Tim Raupach of UNSW Sydney to revisit the 1996 tornado blockbuster.

Twister features Helen Hunt driving into a mesocyclone, Philip Seymour Hoffman blasting music from a convoy of beat-up trucks, and Cary Elwes as the most devastatingly handsome villain in meteorological cinema history. Scene by scene, they separate the jargon from the nonsense: the dryline explanation? Surprisingly solid. The tornado warning time argument? Actually one the film's researchers won, and scientists are still fighting today. Hiding under a highway overpass? Absolutely not — do not do that.

Along the way, the team unpacks how tornado science has evolved in the three decades since the film's release, what real instruments like Dorothy actually exist now, and why the film's meteorological jargon — while occasionally mixed up — is mostly grounded in real science. There are Wizard of Oz callbacks, a frank discussion of whether an F5 tornado would actually bisect you via a leather belt, and a quiet acknowledgement that the movie's core premise — that getting better data from inside storms saves lives — is as relevant as ever.

Whether you loved the film as a kid, are seeing it for the first time at 41 and missed the entire plot, or just want to know what a dryline actually is, this one is for you. Nostalgic, nerdy, and Totally Cooked.

Iain records Totally Cooked on the lands of the Bunurong People of the Kulin Nation. Sarah records Totally Cooked on the lands of the Ngunnawal and Ngambri people. We pay our respects to Elders past, present, and emerging and recognise their unique and continuing connection to the land, skies, waters, plants and animals.

See omnystudio.com/listener for privacy information.

Join hosts Sarah Perkins-Kirkpatrick and Iain Strachan of the Totally Cooked team for part 2, as they explore Australia’s path to net zero emissions with Monash University expert Roger Dargaville. The discussion goes deeper into the technologies and hard choices shaping Australia's energy future. Unpacking why nuclear power doesn't stack up economically or technically for Australia's high-renewables grid, how pumped hydro acts as a giant rechargeable battery, and where hydrogen really fits into the mix—hint: it's not grid storage.

The conversation also covers EV battery degradation and the emerging recycling industry, the challenges of decarbonising aviation with sustainable fuels, and the frustrating reality that fossil fuels can't simply be switched off overnight. Roger shares what cutting-edge research is happening in his lab—from optimal energy system modelling and EV charging infrastructure to building-integrated solar and green steel—before the hosts close with a frank discussion on the political, economic, and intergenerational barriers that have slowed climate action for decades.

Iain records Totally Cooked on the lands of the Bunurong People of the Kulin Nation. Sarah records Totally Cooked on the lands of the Ngunnawal and Ngambri people. We pay our respects to Elders past, present, and emerging and recognise their unique and continuing connection to the land, skies, waters, plants and animals.

See omnystudio.com/listener for privacy information.

Join hosts Sarah Perkins-Kirkpatrick and Iain Strachan of the Totally Cooked team as they explore Australia’s path to net zero emissions with Monash University expert Roger Dargaville. The discussion breaks down what “net zero” really means, revealing how current targets rely heavily on carbon accounting and natural sinks rather than deep cuts to fossil fuel use. While progress in renewable electricity—especially solar and wind—is promising, major challenges remain in transport, industry, and infrastructure.

The conversation dives into the realities of scaling renewable energy, including grid limitations, storage needs, and the complexities of transitioning away from fossil fuels. It also unpacks misconceptions around technologies like solar and wind, highlights the importance of energy system planning, and questions whether market-driven approaches are sufficient. Ultimately, the episode argues that while the technology to reach net zero exists, achieving it will require faster action, stronger policy direction, and significant societal change.

Iain records Totally Cooked on the lands of the Bunurong People of the Kulin Nation. Sarah records Totally Cooked on the lands of the Ngunnawal and Ngambri people. We pay our respects to Elders past, present, and emerging and recognise their unique and continuing connection to the land, skies, waters, plants and animals.

See omnystudio.com/listener for privacy information.

Join hosts Sarah Perkins-Kirkpatrick and Iain Strachan as the Totally Cooked team for their very first live recording, as they take you up, up, and away into the stratosphere. To explore this mysterious and wonderful place far above the Earth's surface, the hosts are joined by guest experts Professor Julie Arblaster (Monash University) and Dr. Martin Jucker (University of New South Wales).

In this episode, the LIVE panel explores what really happens above the clouds, how the ozone layer and jet stream shape our planet’s climate, and why the stratosphere matters for weather, warming, and life below. So hold your breath as the Totally Cooked team this week take your learning higher than ever before, into the stratosphere.

Iain records Totally Cooked on the lands of the Bunurong People of the Kulin Nation. Sarah records Totally Cooked on the lands of the Ngunnawal and Ngambri people. We pay our respects to Elders past, present, and emerging and recognise their unique and continuing connection to the land, skies, waters, plants and animals.

See omnystudio.com/listener for privacy information.

Sarah and Iain are back for Totally Cooked Season 2!

This season our cooked hosts will be taking you behind the scenes of forecasting deadly bushfire weather. They will be asking the big questions like how is climate change impacting the world’s rich biodiversity? What is net zero and when are we going to reach it? And how is machine learning powering new climate and weather science?

For the answers to those questions and plenty more, join us for Season 2 of Totally Cooked!

See omnystudio.com/listener for privacy information.

In this very special episode of Totally Cooked, Sarah Perkins-Kirkpatrick and Iain Strachan sit down with one of Australia's most beloved science communicators: Dr Karl Kruszelnicki. With his signature mix of curiosity, clarity and charisma, Dr Karl has spent decades explaining the universe, one radio segment, podcast, and bestselling book at a time. He joins hosts Iain Strachan and Prof Sarah Perkins-Kirkpatrick for a conversation about climate change, misinformation, science storytelling, and why making facts fun still matters.

We trace the arc of his science communication career from the 1980s to today’s social media battlegrounds, ask whether you really need to ‘dumb things down’ to reach an audience, and discuss what it takes to talk about global warming in a world that sometimes seems to prefer fiction over fact. For listeners around the world, Dr Karl is Australia’s answer to Brian Cox, Bill Nye and Neil deGrasse Tyson rolled into one, an icon of scientific clarity in chaotic times.

Iain records Totally Cooked on the lands of the Bunurong People of the Kulin Nation. Sarah records Totally Cooked on the lands of the Ngunnawal and Ngambri people. We pay our respects to Elders past, present, and emerging and recognise their unqieu and continuing connection to the land, skies, waters, plants and animals.

See omnystudio.com/listener for privacy information.

Can the human body survive climate change? That’s the burning question in this episode of Totally Cooked. With the world already experiencing more frequent and intense heatwaves, we sit down with Professor Ollie Jay from the University of Sydney to explore how our bodies respond to extreme heat, and what happens when they can’t keep up.

Ollie walks your co-hosts Professor Sarah Perkins-Kirkpatrick and Iain Strachan through the science of sweating, hydration, and heat stress, and explains the critical tipping points between heat exhaustion and deadly heatstroke. We discuss who’s most at risk, why heat is often overlooked as a killer, and what governments, communities and individuals can do to stay safe in a hotter world. We also find out what it’s like to sit in a room set to 54°C, and why your fan might not be helping as much as you think.

Plus, it’s quiz time: from Death Valley to the Ashes, the FIFA World Cup to the Sahara, we put Sarah and Ollie to the test with a scorcher of a quiz on record-breaking heat. If you’ve ever wondered whether climate change is cooking us alive (and how long we can keep turning up the thermostat) this episode has the answers.

Iain records Totally Cooked on the lands of the Bunurong People of the Kulin Nation. Sarah records Totally Cooked on the lands of the Ngunnawal and Ngambri people. We pay our respects to Elders past, present and emerging and recognise their unique and continuing connection to the land, skies, waters, plants and animals.

See omnystudio.com/listener for privacy information.