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Wicked Problems - Climate Tech Conversations
We have to talk about geoengineering. Part 1.
Late last year we started interviewing folk in the business of solar radiation management (SRM) - aka one flavour of “geoengineering”. It’s a taboo subject. It’s sci-fi gold. It’s also something we’re going to be talking about. Particularly after famed climate scientist James Hansen and a platoon of other climate scientists published a new paper declaring not just the Paris Agreement goal of limiting warming to 1.5C to be in the rear-view mirror, but - as Damian Carrington in the Guardian summed it up: “The new analysis said global heating is likely to reach 2C by 2045, unless solar geoengineering is deployed.”
The reason for a lot of this acceleration in global heating, say Hansen and colleagues, is (perversely) the result of successful efforts to reduce pollution. Specifically, removing sulfur from maritime fuel. That sulfur has been causing potentially millions of deaths a year due to respiratory diseases. So it’s being phased out. Only one problem - the sulfur was having the under-appreciated consequence of reflecting quite a lot of sunlight back into space. How much? More than the entire energy output of humanity in a given year. And now that it’s been removed, enough to - according to the paper - drive half the acceleration in global heating over the past 5 years or so.
Hansen is hardly fringe for picking this up, though people don’t all agree on the significance. Zeke Hausfather, who was not involved in the research, is among climate scientist who has acknowledge this “aerosol forcing” problem. Some data of his turned up in Nat Bullard’s superb annual climate deck:
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On the call releasing their findings, Hansen et al discussed SRM. Which (even more perversely) often involves ideas for putting sulfur dioxide back into the atmosphere. But on purpose. To cool things off. To buy time.
So here is part one of a series of conversations about SRM, featuring Kelly Wanser - the head of Silver Lining, one of the leading non-batshit-crazy outfits trying to do research on technologies that might make it possible. We’ll put out part two very soon.
00:00 Introduction to the Climate Crisis
00:28 The Doomsday Clock and Climate Realities
01:57 Hansen's Climate Predictions
02:55 Aerosol Forcing and Global Warming
05:10 Purposeful Global Cooling
08:04 Interview with Kelly Wanser
11:07 Silver Linings' Mission and Climate Interventions
23:19 Challenges and Ethical Questions
31:32 Introduction to Luke Eisman and Make Sunsets
31:50 Neal Stephenson's Influence and Geoengineering Concept
32:45 Luke Eisman's DIY Approach to Geoengineering
34:05 Critique of Non-Expert Interventions
35:10 Challenges in Atmospheric Science
37:51 Responsible Research and Global Perspectives
40:10 The Importance of Atmospheric Monitoring
47:56 Global South and Climate Risk Research 5
2:55 The Montreal Protocol and Climate Agreements
54:54 Final Thoughts and Recommendations
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81. Climate has changed. For many, it's now move - or die. w/Gaia Vince
53:39||Season 3, Ep. 81In this Wicked Problems – Climate Tech Conversations, we’re joined by Gaia Vince, author of Nomad Century, a landmark work on climate-driven migration. From the existential realities of climate displacement to the politics of denial and adaptation, it’s about what happens when we stop pretending everyone will stay where they are.It BadLast week, a catastrophic flood hit Kerr County, Texas. 30 cm of rain—four months' worth—fell in hours. The Guadalupe River rose 8 metres in under an hour, swamping the area around Camp Mystic. Over 90 are dead, many of them young girls at the camp. Some are still missing.Cue the blame game. Officials who refused to fund early warning systems claimed the event was unpredictable. Trump-era cuts had gutted the National Weather Service, yet some still pointed fingers at the agency. Others called it karmic justice or MAGA-targeted weather warfare. Conspiracy theorists went further, blaming imaginary geoengineering attacks. Marjorie Taylor-Greene tweeted: “We must end the dangerous and deadly practice of weather modification and geoengineering.”Right-wing extremists, already attacking Doppler radar sites, turn tragedy into paranoia. In past hurricanes, conspiracy-fueled threats forced rescue crews to withdraw.Rapid attribution studies confirm what should be obvious: climate change makes these once-rare floods far more likely.OK DoomerIn a now-notorious quote, Canadian environmentalist David Suzuki said “it’s too late.” Critics pounced, accusing him of defeatism. But, as we discuss with Gaia Vince, the real issue isn’t optimism vs pessimism—it’s whether we’re brave enough to face what’s actually happening.After decades in media and PR, I can tell when people are dodging the truth—even for good reasons. In climate comms, there’s a lot of that. But we try something different here: saying what we think is true, even if it’s hard to hear.On the MoveGaia Vince has been writing about climate and migration for over a decade. In Nomad Century, she argues:Migration is a natural response to climate change—always has been.By 2070, up to 3 billion people may need to move as habitable zones shrink.Governments that prepare for this now will fare better than those that deny it.The book isn’t dystopian; it’s clear-eyed and pragmatic. It insists we have a choice: chaos, or planned adaptation.In This Conversation01:54 Climate Change’s Global Reach04:24 The Reality of Climate Migration09:24 Political Responses to Climate Change10:44 Economic Implications and Adaptation21:57 Innovative Solutions and Future Outlook26:10 Australia and Tuvalu27:06 UN, Sovereignty, and Vanishing Nations29:00 Climate Refugees30:05 Early Agreements30:56 Adaptation and Relocation34:21 Facing the Climate Reality46:55 Can Global Governance Step Up?Get the BookNomad Century: How to Survive the Climate Upheaval remains one of the most honest, practical guides to climate adaptation out there. Listen to the conversation—and get the book.Tips, Bribes, and AbuseGuest idea? Want to help us do more of this? Or just dying to tell us how crap we are? Reach out on Bluesky or email us at info@wickedproblems.uk—and maybe stand us a pint.80. Abundance v Activism at London Climate Week (w Yasmine Abdu, Michael Spiekermann, Charles Perry)
55:16||Season 3, Ep. 80Get bonus content and notes at wickedproblems.earth.Is the “Abundance” discourse - and you can fit most iterations of it in a spectrum from Aaron Bastani and Zohran Mamdani to Ezra Klein to Elon Musk - an inspiring vision of the future or a dangerous delusion? Is insisting on “limits” just realism or is it pathological pessimism? And where does climate tech fit into all that?We think the answers to these questions are kind of important. So we were excited to talk it through onstage at Extreme Hangout during London Climate Action Week at Ladbroke Hall; with climate tech entrepreneur Yasmine Abdu, co-founder of Fridays for the Future Michael Spiekermann, and BP exec to sustainability strategist Charles Perry.Enjoy!Wicked Problems is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.02:27 Michael Speakman's Journey from Activism to Policy03:36 Yasin Abdu's Carbon Track Initiative04:51 Discussion on Abundance vs. Limits15:19 Charles Perry on the Stellar Vision24:30 Debating the Future of Energy and Policy28:18 Reconciling System Change and Longevity28:44 Building an Ecosystem of Corporate Support29:39 Avoiding Venture Capital for Mission-Driven Impact30:58 Choosing Entrepreneurship Over Activism32:18 The Power of Bottom-Up Movements37:31 Identifying the Villain in Climate Narratives50:29 Hope and the Global Sustainability Revolution52:45 Conclusion and Final ThoughtsAll the OutrosMany thanks to our panel and our partners at Extreme Hangout for bringing us on to their stage!79. Why, yes. I AM thinking about the Roman Empire. With Solitaire Townsend.
33:22||Season 3, Ep. 79Get all the show notes and bonus content at wickedproblems.earth!How am I gonna be an optimist about this? This conversation’s official exit music is from Bastille. But stick around for a twist. Turns out it’s not just men who think about the Roman Empire.Polymath raconteuse Solitaire Townsend - sustainability consultant, co-founder of Futerra, UN envoy, award-winning author of the non-fiction The Solutionists - wasn’t just thinking about Rome. She’s wondering, ‘what if I combine some Roman Empire stuff with climate fiction in an alt-history universe in a novel featuring a kick-arse heroine?’ And gets herself a two-book deal.Pre-order Godstorm from our Bookshop.org site or wherever you get good books.Wicked Problems is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.As a cli-fi/alt-history nerd with shelves stuffed with riffs on Rome from Gibbon to Mary Beard with stops for Asimov’s Foundation series, I cannot tell you how pleased I am to be the first to introduce Solitaire Townsend as “novelist” on a podcast.We talk about her turn to fiction, why now, why the alt-history genre, kick around ideas about alt-history from Philip K. Dick to Star Trek (with some Ursula le Guin because why not), and how she deploys the form to tell a cautionary tale about a world that could have been a lot worse off in its climate breakdown — where Rome never fell, because of the 2nd-century CE invention of the combustion engine.As Solitaire says, if we started burning oil under Marcus Aurelius, climate change would have started much sooner. The warming and rising seas fuel extreme weather events called “God-storms”, caused - according to the Imperial version of Fox News - by lack of piety.Most of that is in the background only creating the more personal, intimate world in which her characters struggle - including a gladatrix-turned-governess seeking to rescue her charge from nefarious clutches and kicking serious arse along the way.In Conversation00:28 First Podcast as a Novelist00:56 Pitching 'Godstorm'02:18 Background and Career of Solitaire Townsend02:37 Solitaire, Sustainability Caesaris04:01 Nonfiction Writing Journey05:49 Role of Storytelling in Social Change07:22 Transition to Fiction Writing08:14 Discovering a Passion for Writing10:24 Exploring Alternate History14:05 Speculative Fiction and Personal Interests17:26 Themes and Inspirations for 'God Storm'20:14 Character Development and Empathy22:14 Reflections on Ursula Le Guin and Sci-Fi27:21 Conclusion and Book Pre-Order InformationPre-order Godstorm from our Bookshop.org site.Exit Music78. The Long Heat (with Wim Carton)
44:16||Season 3, Ep. 78Get full show notes and bonus content at wickedproblems.earth In 2024, Wim Carton and Andreas Malm released Overshoot - How the World Surrendered to Climate Breakdown. It was praised and critiqued in various quarters - but we included it in our books of the year because it’s a) beautifully written - with plenty of lateral-thought LOLs and b) was perfectly timed to come out just as the data was increasingly at odds with the “Keep 1.5 Alive” stuff of “incantatory governance” - the magical thinking that seems to be a really complicated way of avoiding some obvious, but difficult, choices. But Overshoot was just the first half of a 2-parter.In the final part, out in October, The Long Heat - Climate Politics When It’s Too Late, Carton and Malm take up the challenge about what to do about it. Will adaptation, carbon dioxide removals, and geoengineering be topics seriously engaged with? Or will they just be a new version of finding ways to avoid the fossil fuels “stranded assets” conversation we’ve avoided having for 35 years of climate politics?In this conversation, we spend a lot of time talking about carbon dioxide removal (CDR) technologies, revealing their roots in extending fossil fuel use, and argues for the necessity of political change to make meaningful progress.But we ended up in an unexpected place. The book, surprisingly to me when I read it, concludes (however reluctantly) that CDR is going to be necessary. But that it needs to be decoupled from a system full of perverse incentives and moral hazard on meth and towards a re-framing of CDR as a public good.What’s in the Conversation00:00 Introduction and Opening Remarks00:17 Host Introduction and Upcoming Events02:27 Guest Introduction: Wim Carton04:48 Discussing 'Overshoot' and Climate Politics06:13 The Role of Fossil Fuel Companies16:38 Adaptation Strategies and Challenges18:43 Technological Solutions and Their Limits20:07 Carbon Dioxide Removal (CDR)20:51 The Concept of Negative Magic21:41 Problematizing Reversibility22:43 Political Economy of Carbon Dioxide Removal24:08 Klaus Lachner and Carbon Removal28:05 Startups and the Political Economy31:07 Challenges in Carbon Removal Market35:36 The Role of the State in Carbon Removal40:12 Concluding Thoughts and Future DiscussionsGet the BooksLike the authors we’re speaking with? Want to get their books, support the author, independent booksellers, and this show?Come get em at our Bookshop.org shop!Next episode out very soon is with Solitaire Townsend - talking about her debut novel - a cli-fi/alt-history/Roman-Empire mashup - Godstorm. What if Rome invented the combustion engine, so it never fell?77. Covering climate in India (with Rishika Pardikar)
42:47||Season 3, Ep. 77Full show notes/bonus content at wickedproblems.earth Join host Richard Delevan on Wicked Problems as he engages in a compelling conversation with Indian journalist Rishika Pardikar. They discussed Rishika's extensive work covering environmental and land rights issues in India, including her stories from the coalfields of Central India and the impacts of major development projects on tribal lands. Rishika shares insights into India's complex climate and energy landscape, the challenges of effective climate reporting, and the cultural intricacies of her homeland. And what Western climate narratives keep getting wrong about India - and what they might learn by listening to voices like Rishika's.00:58 Meet Rashika Kar: Environmental Journalist01:47 Rishika's Journey into Environmental Reporting02:21 Land Rights and Tribal Communities03:24 Mega Projects on Tribal Lands05:06 Challenges in Reporting from India11:56 India's Coal Belt and Energy Transition16:59 The Future of Energy in India22:51 The Efficiency of Indian Appliances24:00 The Politics of Climate Science24:36 Challenges in India's Forecasting Capabilities27:54 The Intersection of Religion and Science28:53 Controversial Studies and Their Implications32:01 The Role of Journalism in Climate Action36:36 India's Climate Action Plans40:10 Future Reporting and Closing Thoughts76. A Peruvian farmer lost in a German court. But it's a Pyrrhic victory.
35:40||Season 3, Ep. 76For nearly a decade, a court in Hamm, Germany has been considering a case brought by a Peruvian farmer, Saul Luciano Lliuya, against the giant German utility RWE. The legal claim was novel: Lliuya said because RWE had caused a percentage of climate change because of its share of past fossil emissions, and that climate change threatened his farm by potentially collapsing a glacial lake, RWE should have to pay a pro rata percentage of the adaptation costs of protecting the farm against potential flood.Judges flew to Peru, took testimony from dozens of experts, heard the defence by RWE. And as their press release noted, the claim in its particulars was dismissed:Climate case against RWE: Hamm Higher Regional Court rejects Peruvian plaintiff’s appeal as unfoundedThe court held there was “no imminent danger” to Saul’s farm.But that’s not the whole story. As an Ancient Greek king supposedly once said: “If we are victorious in one more battle with the Romans, we shall be utterly ruined.” Because in its 25th May ruling the court also held - for the first time, anywhere - that fossil fuel emitters can be held accountable financially for damages, anywhere.Three days later, as if to make a point, the Swiss village of Blatten 500 miles south of Hamm in Germany was destroyed by a glacial collapse. One person was reported missing - but most of the area’s 300 residents had been moved out of danger in time.So is the RWE case a blow to climate litigation or is it a Pyrrhic victory that could set in motion a whole range of new claims that could run to the tens of trillions of dollars, in the kind of law case even Americans can understand: “You broke my fence, you pay to fix the fence.” Or in this case: “You broke my climate.”Dana Drugmand covers climate cases around the world and we talked about the precedent this might set - and we also discuss some of her coverage of plenty of other US climate cases that continue to roll on despite the best efforts of the Trump Administration and oil & gas companies to stop them.Wicked Problems is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.In this Conversation00:00 Introduction and Guest Welcome00:31 Overview of Climate Litigation01:51 The German Court Ruling: Saul Luciano Lliuya vs. RWE02:39 Significance of the RWE Case06:37 Implications for Global Climate Litigation10:15 US Climate Lawsuits: Boulder, Colorado vs. Exxon and Suncor14:37 Federal Preemption and State Law Claims15:43 Hawaii's Climate Deception Case17:23 Trump Administration's Legal Counterattacks22:14 Youth Climate Lawsuit: Lighthouse Review vs. Trump23:47 Montana's Constitutional Right to a Healthy Environment25:19 Challenges in Federal Court27:14 The Role of Climate Litigation in the US30:17 California's Clean Air Act Battle31:56 Conclusion and Future OutlookIt’s a good listen - and if you’re a subscriber you can find links to get these episodes ad-free at wickedproblems.earth.75. The Story Behind Limits to Growth
40:17||Season 3, Ep. 75Full ep notes at wickedproblems.earthI have a confession to make. Even with a self-image as a world-weary cynic, I’m as vulnerable to manipulation as anyone else, especially for stories I grew up with.The Limits to Growth came out the year I was born. I grew up in the US in the 80s. So we heard a lot of things like this:So even though I’m late to it, I was delighted to have come across the work of Katy Shields, who presents (and co-produced with Vegard Beyer) a beautifully executed 3-episode audio documentary series about Limits to Growth, which makes its principal author Danella Meadows the main character.Hearing Katy’s telling of the story of this extraordinary woman who tried to warn us against the future we now inhabit, often in her own words - thanks to an unpublished book outline by Danella to which Katy got exclusive access - made me a bit embarrassed to have previously accepted the bracketing of Limits to Growth in the same category of far more problematic stuff like Malthus, Ehrlich’s The Population Bomb or (the MAGA-right fave) Jean Raspail’s dystopian novel The Camp of the Saints. Many such works seem not so troubled by population growth per se as much as the hue of the babies being produced.While I’m not completely convinced by the arguments Meadows made and Katy Shields/Vegard Beyer excavated and made fresh, Katy does have an excellent series of essays where she takes forward the thinking of Meadows et al as a way to investigate how economics was hijacked by the opponents of Limits to Growth.In this Conversation00:00 Introduction: Questioning Growth00:32 Meet the Guest: Katy Shields02:21 Discovering 'Limits to Growth'04:38 The Impact of Systems Dynamics07:30 Critiques and Misunderstandings09:37 Danella Meadows' Influence11:23 Uncovering Unpublished Diaries14:43 Life on Foundation Farm18:51 Economic Theories and Climate Inaction19:12 The Abundance vs. Scarcity Debate20:08 Historical Influence on Modern Economics21:41 The Chicago School's Dominance23:26 Challenges in Modern Economic Education28:54 Donella Meadows' Legacy31:15 Visioning a Sustainable Future34:34 Future Directions and Final ThoughtsAt the top of the episode we clip a 1994 speech by Danella Meadows that is an extraordinary few minutes that seem to foreshadow the ‘abundance discourse’ currently all the rage on the centre-left.Which is not actually to shame those who, I believe in good faith, believe that ‘perpetual growth’ is the only potential solution to the challenges of the mid-21st century.74. Climate Diplomacy Is Doomed. Unless... (w Jessica Green)
43:20||Season 3, Ep. 74Come to wickedproblems.earth to get the full-fat version! Exit music for this episode is “Oil Money” by Graham Barham. Because, well, it’s a bit obvious this time, no?If insanity is doing the same thing repeatedly and expecting a different result, global climate institutions like the annual COP meetings are definitionally loopier than Elon Musk deep down a K-hole.We spend our time arguing about how to count emissions in order to avoid the real conversation, which is a struggle between three asset classes: fossil fuel assets, ‘vulnerable’ assets (like Small Island Developing States), and ‘green’ assets. Pretending that struggle is not existential is the essence of climate diplomacy for the past 35 years.University of Toronto political scientist Professor Jessica Green thinks we’re well past the point we can afford to continue pretending. Reading her forthcoming book, Existential Politics - Why Global Climate Institutions are Failing and How to Fix Them, was like waking from a dream. You should pre-order it now.She cuts through the nonsense to focus on the real dilemma. The only way through an “energy transition” is for fossil fuel companies, enormously powerful economic and political actors, to have $trillions in ‘stranded assets’ and balance sheets that go up in smoke.Turkeys don’t vote for Christmas (an idiomatic expression I’m pleased to be the first to share with Prof. Green). Yet the entire structure of global climate diplomacy is built on the fallacy that, somehow, oil majors and NOCs would ignore their self-interest and agree to die.As you’ll hear in our conversation, Prof. Green doesn’t pull punches and doesn’t suffer fools. There’s an impatience in her writing and her presentation that has a lot of James Dyke “fuck this noise can we please stop kidding ourselves” energy. At some points I wanted to reach for the hemlock, but thankfully she is as witty as she is sharp.I ask her how her ideas intersect or cut against other critiques of the mainstream climate conversation like Andreas Malm and Wim Carton in Overshoot, Rupert Read’s take on transformative adaptation and Tadzio Mueller’s anticipation of collapse.I think you’ll enjoy the chat. Let us know what you think:In this Conversation01:48 Existential Politics Explained04:18 The Flaws in Carbon Markets05:47 Distributional Politics and Climate Policy08:36 The Role of Corporations in Climate Governance10:49 The Paris Agreement and Its Shortcomings19:26 The Misconception of Solving Climate Change Like the Ozone Problem20:54 Environmental Effects and Substitutes22:04 Challenges in Environmental Governance22:57 Market Dynamics and Trade Issues25:03 Fossil Capital vs. Green Capital28:31 The Role of Litigation and Policy37:11 Grand Bargains and Political Realities38:21 Carbon Capture and Storage Debate40:26 Buy this Book!73. Does 'climate tech' need (another) rebrand?
44:00||Season 3, Ep. 73Get the full show notes and bonus material at wickedproblems.earth! How do things get names? Who decides? What happens if they’re contested? Does it matter?A brand, a label, a name, the words applied to people, places, or things change how an audience feels, and influences outcomes.“Call me Ishmael”, “deadnaming”, or try using the wrong place-name depending on what bank of the River Foyle in Northern Ireland you find yourself, and see how that goes. On the other hand, if your company so dominates your category that your brand becomes a verb, like Hoover. But in the internet age the process happens much faster — see Google, Uber, Tinder.As for people and companies, a tricker object is a whole category. Successfully dominating a category - even if you have to invent one - is, according to Silicon Valley investors like Peter “Competition is for Losers” Thiel, the only type of strategy worth pursuing. And often that will involve getting the name of the category right - some magical combination of things already in the zeitgeist, something that chimes with the audience/customer/media without them consciously knowing why.The idea of whether businesses are in a category called “cleantech” or “climate tech” or “defence tech” or “fintech” does matter, I’d argue.So I asked Art Lapinsch, a startup founder with a successful exit turned climate communications guru and energy lawyer. Now writing a lot of smart stuff on the subject in his new consultancy Delphi Zero, I wanted to return to the “is ‘climate tech’ dead?” debate.But Lapinsch’s bio itself would be enough to want to hear him - going from fleeing civil war in the former Yugoslavia to adtech startup founder to turning to climate solutions ventures and how they should tell their stories. You’re going to enjoy getting to know him. I certainly did. And he was a good sport when dog-related imminent disaster required putting him on hold for a minute. Don’t worry. There’s good interval music for the occasion.In this Conversation00:00 Introduction to Climate Tech Narratives01:17 Meet Art Lapinsch: Background and Mission02:36 Personal Impact of Global Events03:03 Delving into Energy Security04:28 The Evolution of Climate Tech08:32 Communication Strategies in Business17:49 The Role of Neologisms in Industry21:38 Ethics and Communication22:05 Defining Neologisms and Ethical Communication22:41 The Venn of Profit, Legality, and Ethics23:50 Ethical Communication Techniques25:36 Political Communication and Climate Founders27:15 Common Mistakes in Branding and Communication30:11 Navigating Venture Capital Challenges35:32 Personal Reflections on Risk and Resilience40:46 Final Thoughts and Future Projects