Last episode, we explored the urgent connection between climate and health, and brought you a powerful and timely conversation with Julia Gillard, former Australian Prime Minister and Chair of the Wellcome Trust.

Today, we want to recommend a show that those who enjoyed that episode are likely to love. When Science Finds A Way is a brilliant podcast from the Wellcome Trust that highlights how science is changing lives around the world. In the short clip here, we hear how something as simple as a cool roof - a special reflective paint - is helping communities stay safe from extreme heat.

🎧 Listen to the full episode: Cool roofs: homes fit for a hotter world

🔗 Follow the podcast: on Apple Podcasts, Spotify, YouTube, or wherever you get your shows, and learn more about it here.

Hosted on Acast. See acast.com/privacy for more information.

Scientists warn that the world could breach its 1.5°C emissions limit within just 2-3 years. It’s a scary thought, but across the globe, many are grappling with an even more immediate and visceral reality: the climate crisis is already a health crisis.

From deadly heatwaves to worsening air pollution and climate-related trauma, the health impacts of climate change are escalating. In this episode, Christiana Figueres and Paul Dickinson explore how growing awareness of these challenges is beginning to reframe the conversation, and ask whether this could be the narrative that finally drives faster, more inclusive climate action.

Christiana is joined by former Australian Prime Minister and Chair of the Wellcome Trust, Julia Gillard, who makes the case for why health must become central to climate communication - and why we should be talking about “lives lost”, rather than simply degrees gained.

Meanwhile, Tom Rivett-Carnac drops in from the launch of London Climate Action Week 2025, where health is rapidly emerging as a defining lens. 

Learn more 

🌡️ See what the Wellcome Trust is doing at the intersection of climate and health

🩺 Read all about the speakers and events at the Conduit’s Climate and The Future of Health, supported by the Wellcome Trust and held on the first day of LCAW

📅 Browse the full London Climate Action Week events listings, featuring over 500 events across London and online

🎤 Leave us your voice notes and questions for upcoming episodes on SpeakPipe

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Producer: Ben Weaver-Hincks

Video Producer: Caitlin Hanrahan

Assistant Producer: Caillin McDaid

Exec Producer: Ellie Clifford

Commissioning Editor: Sarah Thomas 

This is a Persephonica production for Global Optimism and is part of the Acast Creator Network.

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While climate diplomacy grapples with global uncertainty, there’s a quiet revolution happening that may be just as important - thousands of breakthrough technologies and creative applications that are emerging to tackle the climate crisis in new and unexpected ways.

Around the world, figures from business, government and civil society come together at climate weeks to share ideas, showcase solutions, and accelerate action. Ahead of London Climate Action Week, where many of these innovations will be spotlighted, Christiana Figueres, Tom Rivett-Carnac, and Paul Dickinson introduce just a few of the many founders and builders reimagining how we grow, produce, work, and live in a world under pressure.

From bio-based foams to paper-based electronic sensors, and from temperature-sensitive food labels to AI water management devices, this episode dives into the materials, data, and design transforming the climate solutions landscape.

While technology alone won’t solve the crisis, can it offer glimpses of what a livable, low-carbon future might look like? And how might it contribute to reshaping the infrastructure, industries, and incentives that underpin our daily lives?

Learn more 

🧶 The Future Fabrics Expo, where Evoco and other makers of sustainably and responsibly produced materials will be sharing their work

♻️ Reset Connect, where Watergate, Hurd, Giki and hundreds of other businesses and speakers will be featured

🧪 The Undaunted Innovation Hub, from the programme that has supported PulpaTronics, Mimica and Cyanoskin

📅 The full London Climate Action Week events listings, featuring over 500 events across London and online

🎤 Leave us your voice notes and questions for upcoming episodes on SpeakPipe

Follow us on social media for behind the scenes moments and to watch our videos:

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Producer: Ben Weaver-Hincks

Video Producer: Caitlin Hanrahan

Exec Producer: Ellie Clifford

Commissioning Editor: Sarah Thomas 

This is a Persephonica production for Global Optimism and is part of the Acast Creator Network.

Hosted on Acast. See acast.com/privacy for more information.

World leaders, scientists and ocean advocates are gathering in Nice for the 3rd UN Ocean Conference (UNOC) and hopes are high that progress can be made on some of the many pressing issues facing our seas - from acidification to pollution, and from biodiversity loss to deep sea mining. 

Reporting from the summit, Christiana Figueres and Tom Rivett-Carnac ask: can this moment become a true turning point for ocean governance? Central to the agenda is the High Seas Treaty: a long-awaited international agreement designed to protect marine life in the 64% of the ocean that lies beyond national borders. But with more ratifications needed to get it across the line, can its future be secured while the world’s eyes are on Nice?

Later, Christiana is joined by legendary oceanographer and explorer Dr. Sylvia Earle. Drawing on a lifetime of experience beneath the waves, she shares stories, warnings, and a passionate case for protecting the blue lungs of the planet.

This episode features underwater and ocean recordings taken by sound artist and documentarist Louise Romain.

Learn more 

⚓ Get the latest news on UNOC from the official website

🌊 Learn more about the High Seas Treaty and track its progress towards 60 ratifications

🐠 Discover Sylvia Earle’s ocean advocacy initiative Mission Blue

🎤 Leave us your voice notes and questions for upcoming episodes on SpeakPipe

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Producer: Ben Weaver-Hincks

Video Producer: Caitlin Hanrahan

Exec Producer: Ellie Clifford

Commissioning Editor: Sarah Thomas 

This is a Persephonica production for Global Optimism and is part of the Acast Creator Network.

Hosted on Acast. See acast.com/privacy for more information.

This November, Brazil will host COP30 in Belém, on the edge of the Amazon rainforest, in what is bound to be a moment packed with symbolism, high expectations, and global significance. This week, Christiana Figueres, Tom Rivett-Carnac, and Paul Dickinson explore what’s at stake, what Brazil wants to achieve, and whether the world is ready to move from ambition to implementation.

Back from his recent trip to the country, Tom shares conversations with COP CEO Ana Toni and Gustavo Westmann from the office of the Brazilian Presidency, along with insights and impressions he picked up on the ground - from the growing political momentum to the logistical and diplomatic hurdles still to be overcome. Plus, he introduces the team to the concept of mutirão - this COP’s ambition that the path to climate action be built collectively, and through shared effort, cooperation, and solidarity.

With Brazil readying itself to be the focus of the world’s media later this year, we ask: can COP30 be a breakthrough moment for fossil fuel phaseout, nature protection, and delivery on past promises? Or will it risk becoming another high-profile summit weighed down by old divisions and new distractions?

Learn more 

🗺️ Get the latest COP30 updates and insights from the official website

💡 Start exploring the Outrage + Optimism archive by listening to our Lifelines VS Deadlines miniseries, co-hosted by Global Optimism’s Fiona Macklin, whom you heard from at the end of this episode

🎤 Leave us your voice notes and questions for upcoming episodes on SpeakPipe

Follow us on social media for behind the scenes moments and to watch our videos:

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Or get in touch with us via this form.

Producer: Ben Weaver-Hincks

Video Producer: Caitlin Hanrahan

Exec Producer: Ellie Clifford

Commissioning Editor: Sarah Thomas 

This is a Persephonica production for Global Optimism and is part of the Acast Creator Network.

Hosted on Acast. See acast.com/privacy for more information.

How far would you go to protect your home?

In this week’s special episode, Christiana Figueres brings us a deeply personal and political dispatch from Vanuatu - a country on the frontlines of the climate crisis and at the heart of one of the most significant climate justice initiatives of our time.

In conversations with voices from government (Minister Ralph Regenvanu), climate diplomacy (Christopher Bartlett), youth leadership and advocacy (Litiana Kalsrap), and the arts (Jean-Pascal Wahe), Christiana explores the legacy of colonisation, the meaning of land and sovereignty, and the moral power of a nation that is doing everything it can to protect its people and its planet.

Alongside Paul Dickinson, she also considers Vanuatu’s history as a climate leader and the decades-long struggle for loss and damage. Plus, they begin to unpack the landmark ICJ case that Vanuatu has initiated, and which we will be exploring further in future episodes.

How is this island nation persevering in the face of rising seas and extreme weather? And what does the world owe to those who have done the least to cause our current crisis?

This episode features songs recorded by Christiana in the village of Imaki, on Tanna island, and additional wildlife recordings from Vanuatu by Dominik M. Ramík.

Learn more 

🍠 Jean-Pascal Wahe telling Christiana what it means to be ‘chief of the yam’

⚖️ Information about the ICJ climate case on the Pacific Islands Students Fighting Climate Change website

🎤 Leave us your voice notes and questions for upcoming episodes on SpeakPipe

Follow us on social media for behind the scenes moments and to watch our videos:

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Or get in touch with us via this form. 

Producer: Ben Weaver-Hincks

Video Producer: Caitlin Hanrahan

Exec Producer: Ellie Clifford

Commissioning Editor: Sarah Thomas 

This is a Persephonica production for Global Optimism and is part of the Acast Creator Network.

Hosted on Acast. See acast.com/privacy for more information.

As the US federal government drifts further into anti-climate rhetoric and abandons its national and international commitments, can non-state actors hold the line?

With Christiana Figueres away in Vanuatu, Tom Rivett-Carnac and Paul Dickinson take the reins to explore how climate progress is increasingly being driven by - or being left to - businesses and non-profits. They unpack the mounting challenges facing climate-aligned companies, the promise and complexity of existing voluntary initiatives, and the role that the private sector can play in driving innovation, accountability, and ambition in the absence of strong national leadership.

Later, they speak with Helen Clarkson, CEO of the Climate Group, about the shifting reality for businesses trying to lead on climate in the US and beyond. And they ask her to address some of the rumours surrounding Climate Week NYC: Is it happening? Will it definitely be held in New York? And how can it become a beacon of action in an age of political uncertainty?

Plus: Tom and Paul consider the upcoming ruling in a ground-breaking climate liability case with potentially seismic impacts.

Learn more 

⚖️ Details and documents on the Luciano Lliusya v. RWE EG legal case

🛢️ ‘Scientists Tally Oil Majors’ Climate Damage With Eye to Legal Liability’ in Bloomberg

🛑 ‘The End of Rule of Law in America’ by J. Michael Luttig, in The Atlantic

📺 ‘Every day I have been shocked and disgusted’ - J. Michael Luttig on MSNBC

🌎 Find out more about Climate Week NYC, or the Climate Group’s RE100 and EV100

Follow us on social media for behind the scenes moments and to watch our videos:

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Or get in touch with us via this form.

Producer: Ben Weaver-Hincks

Video Producer: Caitlin Hanrahan

Exec Producer: Ellie Clifford

Commissioning Editor: Sarah Thomas 

This is a Persephonica production for Global Optimism and is part of the Acast Creator Network.

Hosted on Acast. See acast.com/privacy for more information.

On April 28th, millions of people across Spain, Portugal and beyond were plunged into darkness in one of Europe’s most severe blackouts in decades. Was it a cyberattack? A renewables failure? Or might things be a little more complex?

This week, Tom Rivett-Carnac, Christiana Figueres, and Paul Dickinson dig into what we know, what we don’t, and ask what this blackout really tells us about the transition to renewables. They speak with energy strategist Kingsmill Bond of Ember and hear an on-the-ground account from José Manuel Entrecanales, CEO of global renewables leader Acciona, to build a picture of how our grids function – and how they fail.

Plus: what can we say when friends or colleagues claim that ‘renewables aren’t reliable’? And, after our recent conversations reflecting on the legacy of Pope Francis, what might Pope Leo XIV mean for future climate leadership?

Learn more 

🔌 Ember’s report, ‘Energy Security in an Insecure World’

🎧 Octopus CEO Greg Jackson interviewed on the Azeem Azhar’s Exponential View podcast

💡 Simon Evans’s analysis for Carbon Brief on the role of gas in electricity pricing

🌐 The IEA’s report, ‘Electricity Grids and Secure Energy Transitions’

🌳 ‘Pope Francis was a passionate climate advocate. Will Pope Leo XIV continue his legacy?’ in EuroNews

Follow us on social media for behind the scenes moments and to watch our videos:

Instagram @outrageoptimism

LinkedIn @outrageoptimism

Or get in touch with us via this form. 

Producer: Ben Weaver-Hincks

Video Producer: Caitlin Hanrahan

Exec Producer: Ellie Clifford

Commissioning Editor: Sarah Thomas 

This is a Persephonica production for Global Optimism and is part of the Acast Creator Network.

Hosted on Acast. See acast.com/privacy for more information.

Former UK Prime Minister Tony Blair says that net zero is politically unachievable without radical rethinking: a shift away from reducing consumption and toward technologies that can remove carbon both at the source and from the atmosphere. So, are carbon capture and carbon removal really viable - and more palatable - alternatives to a rapid fossil fuel phaseout? And is our net zero strategy failing, or simply failing to be explained?

Hosts Christiana Figueres, Tom Rivett-Carnac, and Paul Dickinson dive into the heart of these questions and explore what Blair’s comments mean for the wider net zero debate. At a time when climate action is becoming increasingly politicised and weaponised, they consider how we might frame net zero as something that improves people’s lives, rather than threatening them. And how we can ensure that every credible climate solution stays on the table.

With timely and provocative contributions from listeners and friends of the podcast - including former BBC News Science Editor David Shukman and Senior Policy Advisor at Carbonfuture Sebastian Manhart - the hosts ask: can we rescue the net zero brand before it’s written off?

Learn more 

📘 The Tony Blair Institute’s report, ‘The Climate Paradox: Why We Need to Reset Action on Climate Change’

✈️ ‘Aviation industry is ‘failing dramatically’ on climate, insiders say’ in the Guardian

🌱 The Future We Choose, by Christiana Figueres and Tom Rivett-Carnac

📣 Our previous episode on communicating climate change with John Marshall, whose work Christiana references in this episode

Follow us on social media for behind the scenes moments and to watch our videos:

Instagram @outrageoptimism

LinkedIn @outrageoptimism

Or get in touch with us via this form. 

Producer: Ben Weaver-Hincks

Video Producer: Caitlin Hanrahan

Exec Producer: Ellie Clifford

Commissioning Editor: Sarah Thomas 

This is a Persephonica production for Global Optimism and is part of the Acast Creator Network.

Hosted on Acast. See acast.com/privacy for more information.

Australia heads to the polls this weekend - with climate firmly on the ballot. Is the country ready to lose its reputation as the battleground of the climate wars? And are we about to see a lasting shift in a nation that has for years been torn between its sunlight and its coal?

As a pivotal election looms, Christiana Figueres, Tom Rivett-Carnac and Paul Dickinson examine what’s at stake for one of the world’s highest per-capita emitters. After months of polling ahead, the opposition Coalition now faces a late surge from the governing Labor Party, with the Greens, Teals and independents all likely to play a crucial role. The result could reinforce, roll-back or reshape domestic climate policy, and determine whether Australia emerges as a global climate leader at a time when others are stepping away from the stage.

To understand what’s going on, the team calls up friend of the show Dean Bialek, Founder and Managing Director of The Pacific Project. Together, they explore the opportunities for Australia in the energy transition, the narratives and dynamics driving this election, and the country’s potential role as a regional leader as it hopes to host 2026’s COP31 with other Pacific nations.

So, does Australia have a role to play in reigniting regional and global climate momentum? And how will this election shape the climate fight - both within and beyond its borders.

Learn more

🌿 Philip Levin’s opinion piece in the New York Times, ‘Trump Tried to Derail Our Work. We Banded Together and Moved Forward.’

🦅 The Economist’s US cover this week, reported by Yahoo

🔬 Hungry Beast’s ‘I’m A Climate Scientist’ video

⚡ ABC News Australia’s graphic, illustrating the shift in Australia’s energy mix

Follow us on social media for behind the scenes moments and to watch our videos:

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LinkedIn @outrageoptimism

Or get in touch with us via this form. 

Producer: Ben Weaver-Hincks

Video Producer: Caitlin Hanrahan

Exec Producer: Dino Sofos

Commissioning Editor: Sarah Thomas 

This is a Persephonica production for Global Optimism and is part of the Acast Creator Network.

Hosted on Acast. See acast.com/privacy for more information.