Expansion, Emissions and the Valley of Death: Can Aviation Grow Responsibly?

Episode 119 | 6.8.2025

Expansion, Emissions and the Valley of Death: Can Aviation Grow Responsibly?

In a political landscape where economic growth is clutched like a lifebuoy, the decision to approve a third runway at Heathrow might seem pragmatic. But for Charlie Garner — Policy & Advocacy Lead at Cleantech for UK — it’s a case study in how policy ambition and climate reality continue to fly at different altitudes.

Listen to the full podcast episode on YouTube, Spotify, and Apple Podcasts.

Speaking on The Responsible Edge, Charlie’s view is nuanced but clear:

“It is a bit of a shame that the government is considering airport expansion in the face of growth,” he said, cautiously.

He’s quick to acknowledge the economic rationale but even quicker to flag the climate cost: an additional 2.4 million tonnes of CO₂ annually by 2050 — and that’s with optimistic assumptions about cleaner fuels.

 

The SAF Mirage: Betting on Technology That Isn’t There

Central to the government’s climate mitigation argument is the promise of Sustainable Aviation Fuel (SAF). It’s a drop-in replacement that relies on waste oils and bio-feedstocks. But there’s a problem: “In the UK, we don’t have any operational projects in the ground,” Charlie warns.

“We’re relying on imported feedstock, creating a huge risk.”

The UK’s SAF mandate may be a step forward, but it’s more of a policy scaffold than a solution. For Charlie, it’s not enough.

“If the government wants to consider expanding Heathrow and Gatwick, we need to do more than just SAF.”

 

Crossing the Valley of Death

The real bottleneck, Charlie argues, lies in the “valley of death” — the treacherous chasm between innovation and scale. Early-stage clean aviation firms struggle to attract funding just when it matters most. It’s a familiar tale: venture capital dries up, institutional investors won’t take the risk, and the UK loses homegrown technologies to more supportive climates.

“We think the National Wealth Fund should co-invest at this stage,” he says, citing the UK Infrastructure Bank’s potential to bridge this critical gap. It’s not about blank cheques — it’s about risk-sharing to unlock scale.

 

Vision vs Delivery: A Nation Adrift

Charlie’s criticism isn’t just of a single policy decision but of the systemic inconsistency in Britain’s clean tech trajectory.

“You can’t keep changing the strategy every four years and expect stakeholders to trust you,” he notes.

His example? The indecision over energy grid pricing models, which stalled investor confidence and delayed renewable projects.

For a nation that once imagined itself a climate leader, Britain has yet to articulate a coherent green industrial strategy — let alone deliver on it.

 

The Case for a National Mission

“What are we trying to be?”

Charlie asks, echoing a deeper concern. Could the UK rebrand itself as a global clean tech hub? Could green growth be our export advantage?

“There’s not one sector the UK doesn’t have an opportunity to succeed in,” he says — provided the government stops gambling on future tech and starts investing in the present.

It’s not a romantic vision of degrowth or techno-utopia. It’s something more grounded: building a policy infrastructure that enables cooperation, coherence, and continuity across government cycles.

 

Lobbying Without Tribes

In his most passionate moment, Charlie turns his attention to the corporate world.

“We need to remove the tribal nature of lobbying at the expense of climate progress,” he argues.

In his view, competitive sectoral lobbying undermines unified climate policy — and with it, public trust in politics itself.

To fix it? “We need a new model of climate lobbying. One that values long-term thinking and shared outcomes.”

 

The Takeaway

Charlie’s magic wand wish isn’t flashy. It’s not a moonshot. It’s a call for better coordination, pragmatic realism, and long-haul investment. For those looking to lead responsibly in today’s messy world, that might just be the most radical thing of all.

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Why Engineers Had to Set the Standard for Net Zero

Episode 118 | 3.8.2025

Why Engineers Had to Set the Standard for Net Zero

“We are the engineers that have the solutions to saving the world,” says Dr Anastasia Mylona, with the matter-of-fact passion that comes from hard-won conviction, not branding strategy. As Technical Director at CIBSE (the Chartered Institution of Building Services Engineers), she’s spent decades translating the theory of climate resilience into the practice of how buildings breathe, heat, cool—and survive.

Listen to the full podcast episode on YouTube, Spotify, and Apple Podcasts.

So when UK policymakers failed to define a consistent, credible path to net zero for the built environment, it wasn’t Whitehall that stepped in. It was the engineers.

The result? The UK Net Zero Carbon Buildings Standard: a voluntary, rigorous, and collaborative benchmark for measuring—and more importantly, achieving—net zero in both new builds and retrofits.

 

Not Just Another Framework

The standard isn’t a white paper or a wishlist. It’s a tool, developed by a coalition of professional bodies—including CIBSE, RIBA, and RICS—and stress-tested by over 200 companies. It defines the ‘what’ and ‘how’ of net zero for real buildings, based on performance, not aspiration.

“This isn’t making it easier for engineers,” Anastasia admits. “But if we’re serious about net zero, this is the way to do it.”

She describes the standard as both “ambitious” and “realistic”—a phrase that only seems contradictory if you’ve grown accustomed to the vagueness of corporate climate commitments. The real success of the standard isn’t just technical. It’s cultural. For once, the fox hasn’t just designed the henhouse—it’s built it out of audited steel, daylight models, and embodied carbon calculations.

 

From Heat Pumps to Heatwaves: Engineering for the Future

At the core of Anastasia’s work is futureproofing. Her PhD at Cardiff focused on overheating risk in buildings. Her work with UKCIP and Oxford University centred on how climate impacts architecture—not in abstract terms, but in thermal loads, drainage systems, and human comfort.

“I always wanted to be an artist,” she laughs. But architecture taught her that buildings aren’t just objects; they’re organisms.

“It clicked that the building is not just a pretty thing—it’s a living, breathing, dynamic entity.”

That realisation has shaped her entire career, from technical guidance on weather files to overheating methodologies. It’s also why she sees this new standard as a culmination of two decades of work.

 

Voluntary, Yes. Optional? Not Really.

Why did industry create a voluntary standard when government wouldn’t? Two reasons, Anastasia explains. First: confusion. Competing definitions of net zero made cross-sector collaboration almost impossible.

Second: influence.

“You can’t lobby for policy with ten different versions of what net zero means,” she says.

A single, shared benchmark enables engineers, architects, and clients to finally compare apples with apples.

The irony, of course, is that what began as a workaround now looks like world leadership. “Nowhere else in the world has developed something like this,” Anastasia notes. Already, countries like the UAE and the US are asking how to adapt it.

 

Cost Is the Elephant in the Plant Room

So why hasn’t the government adopted the standard as policy?

In a word: cost. “There’s an implication that high standards come with high expense,” Anastasia says. But she flips the question: What’s the long-term cost of not adapting? Of relying on imported energy? Of making design decisions that bake in inefficiency for decades?

Her answer isn’t just philosophical. It’s practical:

“Net zero isn’t a five-year thing. It’s the entire lifespan of a building.”

 

The Magic Wand Moment

When asked what she’d change about the commercial world, Anastasia’s answer is quietly radical:

“I’d like it to be less commercial.”

In a Star Trek-like future where money wasn’t the ultimate measure, she believes we’d rediscover the value of people, nature, and spaces that actually enhance life.

And if that sounds naïve, it’s worth remembering who’s saying it. Anastasia is not an idealist. She’s a professional whose day job involves translating planetary-scale urgency into wiring diagrams, airflows, and load profiles.

The magic, it turns out, isn’t in the wand. It’s in the wiring.

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Why We Need a Beehive for the Truth

Episode 117 | 28.7.2025

Why We Need a Beehive for the Truth

There’s something hauntingly familiar in Rafael Cossi’s description of the modern information landscape: fragmented, hyper-emotional, and desperately short of systemic understanding. Cossi, co-founder of Beehive News, isn’t just building a business—he’s constructing a compass for a world that no longer knows which way is north.

Listen to the full podcast episode on YouTube, Spotify, and Apple Podcasts.

When he says, “We’ve lost touch with the sense of the whole,” it’s not a lament—it’s a warning. The disease of misinformation isn’t just poisoning our political discourse or undermining innovation; it’s chipping away at the glue that binds societies together.

 

News as Theory, Not Fact

Most things in the news, says Rafael, aren’t facts. “They’re theories.” And that matters. We don’t need everyone to agree, he explains:

“Consensus is not good for progress.”

But we do need everyone to follow the same logic. That’s what Beehive provides: a transparent, objective framework to assess news articles based on consistency, context, and credibility—not ideology.

His pandemic example is revealing. When UK media declared Brazil’s Covid response a catastrophe, the headlines were technically true. But the omission of critical context—Brazil’s much larger population, regional disparities, and urban/rural divides—meant the narrative was misleading. It’s not fake news. It’s just incomplete. And that, Cossi warns, is the most dangerous kind.

 

The Slow Collapse of Trust

“Information is soft power,” Rafael reminds us. It shapes not just opinions but entire economies, voting behaviours, and social contracts. Today, he observes:

“A lot of young people in the UK don’t believe in democracy anymore.”

It’s not hard to see why. When truth becomes a battleground, the casualties are cohesion and common purpose.

Misinformation doesn’t need to be believed to be effective. It just needs to be seen. Cossi explains how emotional anchoring—what psychologists call “knowledge neglect”—can distort perception even when we know something is untrue. The damage is already done.

 

A Better Incentive: Pay for Quality

What Beehive is trying to do is simple, yet radical: create a marketplace where quality journalism is not just a moral imperative but a commercial advantage.

“When people use our app to read news,” says Cossi, “they’re 35% more likely to click on well-rated articles.”

That data doesn’t just help readers—it gives publishers a reason to care.

And some do. Beehive collaborates with media regulators and has already started nudging some major outlets towards better standards. But others? “They say, ‘You’ve correctly identified the flaws—but we only care about engagement.’”

This isn’t cynicism—it’s systems failure.

 

Beyond the Printing Press

To make sense of today’s chaotic information ecosystem, Cossi turns to history. The invention of the printing press, he notes, was followed by centuries of chaos, propaganda, and ultimately, regulation. The same must now happen with digital content.

“We review hotels, we review restaurants—why not the news?” he asks.

But his vision is not authoritarian. Beehive doesn’t decide what’s true or false. It simply makes transparent what’s missing. In doing so, it reintroduces a sense of shared informational ground—without flattening the complexity of diverse perspectives.

 

A Magic Wand for Holism

When asked what he’d change about the commercial world, Cossi doesn’t mention regulation or AI. He wants to restore a “sense of the whole”—a worldview that connects individual decisions to collective impact. The metaphor he uses comes from the Apple TV series Severance, where workers forget their real lives the moment they enter the office.

“We’ve siloed ourselves,” he says. “We’ve lost our sense of purpose.”

This is the moral heart of the conversation. Not just how we rate news. But how we relate to one another.

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Power, Property and Possibility: Anna Clare Harper on Capital, Confidence and Change

Episode 116 | 24.7.2025

Power, Property and Possibility: Anna Clare Harper on Capital, Confidence and Change

When it comes to responsible leadership, Anna Clare Harper isn’t interested in vague promises or poster slogans. She’s building structures—financial, technological and human—that hold.

Listen to the full podcast episode on YouTube, Spotify, and Apple Podcasts.

As co-founder of Green Resi, a platform unlocking institutional capital to retrofit underperforming homes, Anna’s mission is startlingly precise: “To bring ten thousand vacant and underperforming homes back into use by 2030.”

But scratch the surface, and the deeper aim becomes clear.

“Inequality of opportunity is the thing I care most about,” she says.

“For me, that’s about homes—and who gets to lead in delivering them.”

 

Why Inclusion Doesn’t Start with Capability

The prevailing narrative in tech and construction is that AI can “level the playing field” for women. But Anna’s take is refreshingly sceptical: “The real barriers aren’t capability,” she explains. “They’re structural.”

In her view, three deficits hold women back: access to influential sponsors, control over capital, and traditional markers of confidence.

“We reward a very narrow idea of leadership—typically alpha, typically male. And then wonder why women drop out of the pipeline.”

This isn’t a diversity plea. It’s a business critique. “Only 2% of real estate funds are managed by women,” she says. “That’s not just unfair—it’s inefficient. There’s clear data showing that diverse teams make better, more risk-aware decisions.”

 

The Power of Sponsorship (and the Pain of Its Absence)

Anna draws a crucial distinction between mentorship and sponsorship. Mentorship offers advice. Sponsorship opens doors. And the latter, she argues, is still vanishingly rare for women in property and finance.

“The most important predictor of career success isn’t performance. It’s having someone who advocates for you when you’re not in the room,” she says.

“And that’s often where women are missing out.”

Embedding sponsorship as a core responsibility of leadership, she argues, would shift not just who leads, but how.

“We need to reward people not just for individual performance, but for cultivating the next generation.”

 

AI Isn’t a Silver Bullet—But It Might Be a Lever

Despite her caution around tech hype, Anna sees real potential for AI to reshape housing investment. Green Resi uses software to rapidly assess upgrade costs and filter investment opportunities—tasks that would overwhelm human analysts.

“It’s about reliability,” she says.

“Institutional investors won’t back a £300,000 retrofit unless they trust the process that got them there. But aggregate that to £50 million or more, and now they’re interested.”

Still, she warns against overestimating tech’s role in inclusion. “AI won’t fix capital gaps or culture. But it can remove excuses.”

 

What It Really Takes to Lead Responsibly

Anna’s leadership isn’t loud or linear. It’s iterative, reflective—and deeply commercial. “People change when there’s pain,” she says bluntly.

“When they see competitors outperforming them, they start to care about inclusion.”

She’s clear that responsible leadership must be commercially savvy. “You need the moral case. But you really need the business case,” she insists. “That’s when things start to move.”

In a sector fixated on the new, Anna is betting on the overlooked: vacant homes, underrepresented talent, underestimated leaders. And she’s building the systems to bring them all into the fold.

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Butter on Your Feet: Claire Wallerstein and the Ethics of Climate Storytelling

Episode 115 | 20.7.2025

Butter on Your Feet: Claire Wallerstein and the Ethics of Climate Storytelling

Claire Wallerstein’s journey into climate storytelling doesn’t start with a TED talk or a pivot from consulting — it begins with butter. As a child growing up in coastal Cornwall, she recalls oil spills so frequent they left children’s feet tarred black. “You’d butter your feet to get it off,” she says. “That was just normal.”

Listen to the full podcast episode on YouTube, Spotify, and Apple Podcasts.

It’s a startling image, and a potent reminder: our baseline for environmental degradation shifts quietly, generation by generation. Today, she’s a documentary producer with Cornwall Climate Care, but it’s this early, tactile confrontation with pollution that laid the groundwork for her uncompromising approach to environmental truth-telling.

 

From Tabloid Stings to Truth-Telling

Claire’s path wasn’t linear. A former international journalist, she cut her teeth in the ethically murky waters of 1990s tabloid journalism — wiretaps, stakeouts, and all. One assignment required her, aged 25, to go undercover with a hidden mic to entrap a man allegedly dealing drugs. He wasn’t. “He was a lovely man,” she says.

“That was a huge wake-up call. I didn’t want to be part of that world.”

What followed was a redirection, not just away from journalism’s darker corners, but toward a more constructive, values-led mode of storytelling. Reporting stints in the Philippines and Venezuela exposed her to the vast chasm between natural abundance and human deprivation — insights that now inform her climate work.

 

Microplastics, Macro Awakening

Returning to Cornwall years later, it wasn’t oil but plastic that struck Claire.

“The whole beach looked like it was covered in confetti — except it was microplastics,” she recalls.

The scene catalysed her founding of Rame Peninsula Beach Care, a local clean-up group that grew into a movement. “You can’t clean a beach on your own,” she says — a phrase that could double as a metaphor for climate action.

But it was a scientist’s despair at a marine plastics conference that triggered her shift to climate filmmaking:

“He said, ‘Plastic is terrible, but the real issue is climate change — and we’re not talking about it.’”

That comment became the seed for Cornwall Climate Care, which now produces powerful documentaries on how climate change affects local communities.

 

No Voiceovers, No Preaching — Just Real People

Claire’s films are pointedly non-preachy. They’re fronted by “real people” — a farmer, a fisherman, her own hairdresser — to break down social and political polarisation.

“We interviewed a climate sceptic for our latest film. He was lovely. We agreed on far more than we didn’t,” she says.

That intentional dismantling of echo chambers is part of her ethos. In a media landscape often soaked in outrage and binary conflict, Claire’s approach is quietly radical: listening.

 

The Power and Peril of Film

The tension between storytelling and impact looms large.

“Film is powerful, but it can also greenwash,” Claire warns.

Referencing a recent Mintel article and Hollywood’s reluctance to mention climate change even in disaster films, she calls it “a cowardly, commercially driven neglect of artistic duty.”

But she’s not naïve about the industry’s carbon footprint either. Disney’s “Snow White”, she notes, had higher emissions than the latest “Fast and Furious”.

Her team uses electric vehicles and rechargeable kit — modest measures, perhaps, but ones that reflect her core belief: if you’re going to critique the system, you’d better examine your own house first.

 

The Real Risk: Not Being Fair

When asked what she’d change with a magic wand, Claire doesn’t hesitate: “Fairness.” She believes climate action fails not due to facts, but because people sense — often rightly — that the burden will fall on those least able to carry it. “People at the bottom are told to give up things, while the wealthy fly private,” she says.

“We need to tax the rich, and tax the corporations dodging responsibility.”

It’s not just a moral point. It’s a strategic one. “You can’t build a movement on resentment,” Claire suggests.

“But you can build one on fairness.”

 

A Vision Worth Watching

For Claire, the antidote to fear-based messaging is not false optimism — it’s agency. Her screenings aren’t just passive viewings; they’re catalysts for discussion, community action, and change. “Don’t just tell people it’s all terrible,” she insists.

“Give them something they can do.”

Whether or not climate cinema can “save the world” may be an open question. But in the hands of people like Claire, it can certainly make us want to.

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