In a world where climate emergencies are being declared daily, why do so many of our city streets and public transport networks have misleading ads for the very industries driving the crisis?

Our conversation with two C40 experts reveals how the fossil fuel industry mirrors old tobacco industry tactics using sophisticated techniques to "greenwash" their image and frame essential health protections as attacks on free speech. Tune in to learn how cities reclaiming the narratives in our transit systems and urban squares is a vital step toward fending off industry attacks and securing a safer, more sustainable future for all.

Featured guests:

Mariana Batista, C40 Senior Manager, Public Transport

Charlie Worthington, C40 Project Officer, High Carbon Advertising Bans

Links:

The War Against Tobacco: 50 Years and Counting - National Library of Medicine

How the Fossil Fuel Industry Polluted the Information Landscape - Center for Climate Change Communication

Air pollution from fossil fuels kills 5 million people a year - The Guardian

In The Hague, ban on Big Oil ads survives legal challenge - Courthouse News

Profitable Growth Without Fossil Fuels - Clean Creatives

Frequently Asked Questions - A World Without Fossil Fuel Ads

Declaration on Information Integrity on Climate Change - UNESCO

Cities Climate Transition Framework - C40 Knowledge Hub

Clearing the way: A toolkit for positive, fossil-free city advertising - C40 Knowledge Hub

How cities can restrict carbon-intensive advertising - C40 Knowledge Hub

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/

Hot Take: the climate crisis isn’t some abstract data point or a dry policy debate, it’s a deeply human story of survival. Right now, a whole generation is growing up inside the emergency, doing the heavy lifting to fix a mess they didn't create. We’re bringing you the raw, human heartbeat of the movement and amplifying the voices that stole the show at the World Mayor’s Summit in Rio. The C40 Youth Hub members dive into what real intergenerational collaboration looks like when those with the biggest stake in the future are finally the ones leading the change.

Youth Moment featured leaders:

Juliet Oluoch, Research fellow, Ufanisi Research Network

Anjali Raman-Middleton, Co-founder and Director, Choked Up

Esther Kamara, Founder of Youth Initiative For Climate Action Sierra Leone

Foday Kamara, National Coordinator, Youth Climate Council Global Alliance

Letícia Mathias, Co-founder and Executive Director, Instituto SustentAção

Micheala Chan, Young Water Utilities Expert for the Pacific, Asian Development Bank

Featured interview guest:

Earl Aldrin Burgos. C40 Youth Engagement and Campaigns Manager

Links:

World Mayors Summit special - Cities 1.5

US cities as climate first responders - Cities 1.5

C40 Youth Moment - YouTube 

Youth Hub - C40

Youth Engagement Playbook for Cities - C40

Loss and Damage: Challenges and Opportunities for City Leadership

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/

What would you risk to tell the truth, if the institution you served was one of the most powerful corporations on Earth?

Early scientific warnings about global heating have long stood in tension with corporate narratives shaping public understanding. This episode examines the enduring disinformation created and disseminated by the fossil fuel industry: how it evolves, why it persists, and what it means for the pace of climate action. Through the perspective of a former insider at ExxonMobil, we explore the widening gap between the disinformation narratives pumped out by fossil fuel companies and the personal consequences of challenging one of the most powerful corporations in modern history.

Featured guest:

Lindsey Gulden, Principal Data Scientist at Leg Up Data and former employee at ExxonMobil

Audio sources: 

Oil giant ExxonMobil predicted climate change in 1970s - BBC News

Exxon CEO and Chairman of the American Petroleum Institute Lee Raymond speech (1996) - CPAN

WSJ: SEC probes Exxon after whistleblower complaint - CNBC

Links:

New study in 'Science' puts a number on what Exxon knew decades ago about climate change - Potsdam Institute

How a Newton woman became an enemy of ExxonMobil - The Boston Globe

Tracing Big Oil’s PR war to delay action on climate change - The Harvard Gazette

Carbon Capture and Storage: The Billion Dollar Scam - Environmental Defence

Trump says he might keep Exxon out of Venezuela - Reuters

Countering Climate Disinformation - C40 Cities

Disinformation episodes - Cities 1.5

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/

Across the United States, cities are acting as climate first responders - carrying climate action forward even as national politics grow more hostile. From clean energy and buildings to transport, land use and resilience to extreme weather events, mayors are proving that climate leadership does not depend on federal permission. It grows from proximity: to people, to impacts, and to the places leaders are entrusted to protect. Cities are stepping in to safeguard neighbourhoods, rivers, urban ecosystems and public health, often while the federal government undermines climate policy or attacks local authority.

Featured guests:

Keith Wilson, Mayor of Portland, Oregon, USA

Kirk Watson, Mayor of Austin, Texas, USA

Juliet Oluoch, Research fellow at Ustawi Analytica and youth climate activist from Nairobi, Kenya

Links:

Solved: How the World’s Great Cities Are Fixing the Climate Crisis by David Miller

The Fate of the Inflation Reduction Act in the Second Era of Trump - Cities 1.5

Trump signs order to withdraw US from Paris climate agreement for second time - The Guardian

‘Poet, writer, wife, mom’: who was Renee Nicole Good, the woman killed by an ICE agent? - The Guardian

Mayor Keith Wilson Announces Portland Has Reached more than 1,500 Emergency Overnight Beds, Delivered at Unprecedented Speed - Portland.gov

Costumed protesters in Portland defy description of the city as a 'war zone' - NBC News

Austin Climate Equity Plan

$3,000 grants offered to groups addressing climate change and food access challenges - Austin Monitor

More links for this episode available at jccpe.utpjournals.press and c40.org.

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/

In times of profound geopolitical turbulence - wars, trade shocks, energy insecurity, and climate breakdown - something unexpected is happening: while autocratic leaders double down on fossil fuels and climate denial, cities are stepping into the breach to create a different story. One of hope, resilience, and innovation.

Like wildflowers pushing through concrete, cities around the world are experimenting with new economic models that challenge the old orthodoxy of endless growth. They're turning away from Gross Domestic Product (GDP) as the sole measure of success and asking different questions: Are people housed? Are they thriving? Are we staying within planetary limits?

Featured guests:

Kate Raworth, Co-founder of the Doughnut Economics Action Lab (DEAL)

Leonora Grcheva, Cities and Regions Lead at DEAL

Giuseppe Sala, Mayor of Milan, Italy

Nkosindiphile Xhakaza, Executive Mayor of Tshwane, South Africa

Carola Schouten, Mayor of Rotterdam, Netherlands

Links:

Doughnut Economics in Local Governments: An Overview of Emerging Practice by Leonora Grcheva and Michele Vianello

Special Issue on Sustainable Prosperity in the 21st-Century City - the Journal of City Climate Policy and Economy

Trump fossil-fuel push setting back green progress decades, critics warn - The Guardian

Resources for a better future: GDP - Resilience.org

Milan's Food Waste Hubs Network

Compilation of the Integrated Waste Management Plan for the City of Ekurhuleni Metropolitan Municipality

CCU Challenge: Unlock the City’s Ambition of Becoming Fully Circular by 2050

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/

As geopolitical power shifts, cities are rising to lead this urban century while nations cling to outdated systems. Season 6 of Cities 1.5 explores how mayors and urban leaders from around the world are turning uncertainty into opportunity, building regenerative futures with hope-filled narratives that counter disinformation and inspire action.

Join us from January 13, 2026, as we explore the urban transformation the world cannot wait for, ranging from tackling disinformation, decarbonising infrastructure, and confronting the growing alliance between political authoritarianism and the fossil fuel industry. Through intimate conversations with global mayors and urban innovators, we reveal how cities are not just adapting to change…but are actively shaping our future.

Because the future isn't waiting, and neither are cities.

Links:

Zohran Mamdani’s full victory speech, 4 November 2025 - Zohran Mamdani for NYC YouTube channel

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/

 In the face of the accelerating climate crisis, rising authoritarianism, and geopolitical shifts, national governments are faltering…but cities are stepping into the void and taking the lead. 

Season 6 of Cities 1.5 will delve into how municipal-level actions and powerful coalitions are creating a carbon-free future, promoting resilience, and enabling a new economic system based on wellbeing over profit. We’ll explore how cities are countering disinformation, fear, and inertia by spearheading significant local climate initiatives and forming new alliances, daring national governments to follow in their footsteps. Because the future won’t wait - so we need to decide now who will lead, and whether we want to move towards disaster … or resilience.

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/

Welcome to Cities 1.5 Hot Takes: Dispatches from the Frontlines of the Climate Crisis. Hot Takes brings you fast, focused coverage on breaking news and underserved stories at the intersection of climate, economics and public health - all through an urban lens. 

This first-ever edition of Hot Takes is about a major move in Canada’s energy future…and what it means for climate, cities, and the promises made to hold fossil fuel giants accountable. As Canadian cities race toward net zero, their efforts are being fundamentally threatened by a high stakes federal agreement known as "The Grand Bargain": a political compromise on behalf of the Mark Carney government to build a new pipeline that would transport diluted bitumen from the Alberta oil sands westward across the rocky mountains to the British Columbia coast.

Touted as a bridge to a clean energy future, we go behind the spin to explore the  real facts behind this project - and lay bare the reasons many are opposed to this doubling down on promises made by the fossil fuel industry…promises that historically haven’t been worth the paper they’re written on.

Featured guests:

Hon. Catherine McKenna, Chair of the UN Secretary General’s High-Level Expert Group on Net-Zero Commitments of Non-State Entities, and former Canadian Minister of Environment and Climate Change

Links:

World Mayors Summit two-part special - Cities 1.5 podcast

83 Countries Join Call to End Fossil Fuels at COP30 - Earth.org 

Why Mark Carney’s pipeline deal with Alberta puts the Canadian federation in jeopardy - The Conversation

A Not-so-Grand Bargain - Pembina Institute

Canada may approve a new oil pipeline. First Nations fear another ‘worst-case scenario’ - The Guardian

Watch David’s full CPAC interview

Canada OKs ‘Massive’ $20 Billion Loan for Trans-Mountain Pipeline - DeSmog

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/

In the first episode of our two-part World Mayors Summit special, we heard from mayors around the world about the power of convenings like the Summit to unite city leaders and spark collaboration. In this second episode, we explore what that collaboration looks like in practice, from new approaches to urban planning and the challenge of energy-hungry data centres, to fossil-free trucks and greener and cleaner shipping routes.

We also explore the outcomes for cities that came out of COP30 with voices from people who were on the ground in Belém…and also from a Brazilian climate leader who had a front-row seat before, during, and after what many have been calling the most important COP since the Paris Agreement. 

Photo credit: © C40 Cities

Special thanks to Pauline Eloi, Director of the Executive C40 Office and Yasmin Calandrini, Manager, CHAMP National Engagement, for their on-the-ground support in Rio for the production of this episode. 

Featured guests:

Kirk Watson, Mayor of Austin, USA

Carola Schouten, Mayor of Rotterdam, Netherlands

Nick Reece, Lord Mayor of Melbourne, Australia

Christiana Figueres, Founding Partner of Global Optimism and Co-presenter of Outrage + Optimism

Ilan Cuperstein, C40 Regional Director for Latin America and Head of International Relations for the City of Rio de Janeiro, Brazil

Mark Watts, Executive Director of C40 Cities

Lars Weiss, Lord Mayor of Copenhagen, Denmark

Eduardo Pimentel, Mayor of Curitiba, Brazil

Eirik Lae Solberg, Governing Mayor of Oslo, Norway

Dr. Nasiphi Moya, Mayor of Tshwane, South Africa

Links:

Outrage + Optimism - Inside COP

Learn about the many versions of COP30's "Global Mutirão"

Winners: Clean, Reliable Transportation (Oslo Fossil Free Trucks)

Tshwane C40 Cities regional sustainability masterclass

The Environmental Cost of Data Centers

COP30 Local Leaders For

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/

In this first instalment of our two-part special from the C40 World Mayors Summit, Cities 1.5 takes you inside the flagship gathering of the world’s most ambitious urban climate leaders. We hear directly from mayors as they unveil this year’s Offer of Action – a unified commitment that raises the stakes for urban climate leadership and pointedly challenges national governments to match their ambition with action of  their own, all on the eve of COP30. We also speak with leading climate experts and C40 partners to explore why cities remain the most effective engines for rapid, equitable decarbonization, and what they must do next to keep the goal of limiting global heating to 1.5°C alive. And crucially, funders share why they’ve chosen to invest in C40’s global network, highlighting the proven impact of coordinated city action and the urgency of scaling it.

Photo credit: ©Bernardo Jardim Photography

Featured:

Sir Sadiq Khan, C40 Co-Chair and Mayor of London

Nick Reece, Lord Mayor of Melbourne

Giuseppe “Beppe” Sala, Mayor of Milan

Yousef Al-Shawarbeh, Mayor of Amman

Keith Wilson, Mayor of Portland

Dr. Nkosindiphile Xhakaza, Executive Mayor of Ekurhuleni

Eduardo Pimentel, Mayor of Curitiba

Caterina Sarfatti, Managing Director of Inclusion and Global Leadership at C40

Haris Doukas, Mayor of Athens

Eirik Lae Solberg, Governing Mayor of Oslo

Søren Staugaard Nielsen, Managing Director of the Ramboll Foundation

Jo Jewell, Director of Social Responsibility Partnerships at Novo Nordisk

Hon. Catherine McKenna, Chair of the UN Secretary General’s High-Level Expert Group on Net-Zero Commitments of Non-State Entities

Christiana Figueres, Founding Partner of Global Optimism and Co-presenter of Outrage + Optimism

Links:

C40 World Mayors Summit: Cities Delivering Global Leadership for Climate Action - Bloomberg Philanthropies, YouTube

C40 World Mayors Summit

From negotiation to delivery:The Yearly Offer of Action

Ramboll Foundation

Novo Nordisk

Cities for Better Health

Green and Thriving Neighbourhoods Programme

Integrity Matters: Winning the Futu

If you want to learn more about the Journal of City Climate Policy and Economy, please visit our website at https://jccpe.utpjournals.press/

Listen to the Cities 1.5 five-part miniseries “Going Steady with Herman Daly: How to Unbreak the Economy (and the Planet)" here: https://lnk.to/HDMiniSeries

Cities 1.5 is produced by the University of Toronto Press and the C40 Centre, and is supported by C40 Cities. Sign up to the Centre newsletter: https://thecentre.substack.com/

Writing and executive production by Peggy Whitfield.

Narrative and communications support by Chiara Morfeo.

Produced by Jess Schmidt: https://jessdoespodcasting.com/

Edited by Morgane Chambrin: https://www.morganechambrin.com/

Music by Lorna Gilfedder: https://origamipodcastservices.com/