In this essential and clarifying solo episode of Straight Talking Sustainability, host Emma Burlow demystifies one of sustainability's most intimidating concepts (system change) by walking listeners through a practical framework from Nigel Topping's Race to Zero TED Talk that has been stuck on her office wall for years.

With three simple visual rules (ambition loops, exponential goals, and shared action pathways), Emma transforms system change from an abstract scary concept into actionable strategy that helps businesses set appropriate ambition levels, plan for technological disruption properly, and avoid the painful trap of plowing their furrow solo whilst competitors and supply chains speed ahead together.

The episode centres on a poster featuring three rules for system change that Emma uses when training boards and senior teams to get them out of the weeds, out of rabbit holes, and looking at the bigger picture.

The framework originated from Nigel Topping's TED Talk and consists of three graphics: a Möbius loop representing ambition loops, an upward arrow representing exponential goals (ironically resembling a climate change graph), and three splitting arrows representing shared action pathways. Emma walks through each rule systematically, explaining not just what they mean but how businesses can apply them practically.

Rule One: Harness Ambition Loops are self-reinforcing cycles (like climate feedback loops) that push everyone to move faster when industry, policy, investors, and consumers all rise to the same ambition level.

The Holy Grail of system change occurs when things align like planets: policymakers set clear direction that levels the playing field, the private sector gets on board rather than working in totally different directions, policy incentivises innovation which brings costs down, solutions scale as investors pile in because risk has dropped, cheaper solutions enable consumer adoption, and the loop continues with rising ambition levels.

Emma contrasts this with the experience of disruptive startups (having worked with Revolution Zero for four years plus numerous innovative startups), where it feels like literally pushing water uphill when you are not in an ambition loop.

The critical insight is understanding your landscape: knowing policy changes coming up, aligning with them, working out where your customer sits in the loop (are they even aware of the loop?), and recognising that timing is everything. Many products and businesses fail not because the idea was poor but because timing was wrong (the customer was not aligned, the policy was not aligned).

The EV example illustrates ambition loops perfectly. EVs bumbled along at low adoption for 20 years (Nissan Leaf, Prius) with no policy in place. Once policy was established, EV manufacturers invested rapidly, and the sector moved towards policy targets for adoption.

When the UK government pulled back on EV timelines, the car industry created a "hoo-ha" saying "hang on a minute, you can't pull back now, we've put all this money in." This demonstrated how critical aligned ambition is; breaking the loop after investments have been made creates chaos and represents nearsighted policymaking that undermines the system.

Rule Two: Set Exponential Goals addresses Emma's favourite mistake: picking a net zero date then setting linear goals (reducing emissions by 10% or 15% annually) without understanding how industrial revolutions actually work.

All technology disruption follows an S-curve: slow adverse adoption, then increasing, then doubling until market adoption is reached. This pattern applies to mobile phones, the internet, solar power, AI, and every major technological disruption. We are currently seeing this with solar, electric batteries, and renewable energy globally.

Emma emphasises that setting...

In this insightful and energising episode of Straight Talking Sustainability, host Emma Burlow sits down with Crista Buznea, Head of Sustainability Marketing at Ecologi, to explore how effective communication can transform sustainability from a worthy burden into an engaging, dopamine-filled journey that drives real business action.

With a background spanning tourism marketing at Heathrow and TUI before transitioning into sustainability leadership, Crista brings unique perspective on what actually works when trying to bring sustainability to the masses through authentic storytelling, strategic listening, and remarkably, the occasional use of negative messaging.

Crista's career transformation began during travels through Thailand and Cambodia, where she witnessed the dark side of tourism that her university degree had glamorised: child exploitation, fake orphanages, environmental pollution, and animal welfare issues.

This awakening led her back to university for another degree, then into roles at Heathrow and TUI where she applied marketing skills to sustainability challenges, successfully integrating sustainability into every in-flight entertainment magazine, on-screen content, in travel agencies, and through video campaigns.

Her mission has always been bringing sustainability to the masses, making it accessible rather than corporate, engaging rather than jargon-filled.

When the pandemic eliminated tourism jobs including Crista's, she showed up on LinkedIn every day telling sustainability stories, filming content, and building consistency that ultimately attracted Ecology.

They offered her a platform doing sustainability "very differently to anything I'd ever seen," using gamification and creating what Crista describes as "an environment full of dopamine" that makes sustainability genuinely engaging.

This philosophy challenges the traditional worthy, anxiety-inducing, difficult journey narrative that dominates much sustainability communication, suggesting instead that positive energy and accessible entry points drive far more participation than guilt and complexity.

The conversation centres on Ecologi's latest campaign, "Sustainability Shouldn't Be Unsustainable," which emerged from Crista's social listening at climate conferences and events.

Working with over 24,000 businesses gave her extensive exposure to sustainability leaders' challenges, and she consistently heard paradoxical demands: integrate sustainability on the ground but also be a strategic thinker, speak up but not too loud, don't be afraid of greenwashing but don't be green-hushed either.

The campaign mirrors these tensions back to the industry, acknowledging that sustainability professionals are caught between business objectives and regulatory pressure, between optimistic targets and harsh reality, between spreadsheets and storytelling.

Crista reveals fascinating insights from Ecologi's marketing experiments testing positive versus negative messaging, carrot versus stick approaches. Their weekly "Good News" series generates 20% of weekly engagement, proving positive content works.

However, when testing the same message framed as a barrier versus a motivation, barriers (the stick, the negative framing) perform marginally better.

This counterintuitive finding challenges the sustainability sector's growing emphasis on positivity-only approaches, suggesting that balanced communication acknowledging both challenges and opportunities resonates more authentically than relentless optimism or doom-focused messaging.

The episode explores critical sustainability marketing challenges including AI-generated content that lacks authenticity (easily spotted through overuse of dashes, lists of three, and algorithmic patterns), green-hushing driven by Western political changes and business caution, and the constant need to simplify jargon (carbon...

In this practical and uplifting solo episode of Straight Talking Sustainability, host Emma Burlow kicks off 2026 with a powerful reframe for sustainability professionals exhausted by negativity, what-aboutism, and constant battles over every small change.

Drawing on groundbreaking research published in Nature Food, Emma demonstrates how clever behind-the-scenes switches can deliver massive carbon reductions (30% in one study) without guilt, arguments, or removing anyone's choices. This episode is essential listening for anyone tired of making sustainability harder than it needs to be.

Emma introduces research by Flynn et al. titled "Dish swap across a weekly menu can deliver health and sustainability gains" that proves something revolutionary: you do not need to start with the hardest stuff, fight people, or remove choice to achieve meaningful carbon reductions.

The researchers worked with a canteen serving 15 dishes across a five-day week, surveying diners' preferences and identifying where high-carbon meat dishes competed with lower-carbon vegetarian options. The problem was simple: when people's favourite vegetarian meal appeared on the same day as their favourite meat dish, they always chose the meat, meaning the vegetarian option never got selected.

The solution was brilliantly simple: reshuffle the menu. Using what they called an optimisation model, the researchers rearranged dishes so high-preference vegetarian meals no longer competed with high-preference meat meals. No recipes changed. No meat-free Mondays. No lectures. No signs. Just a smarter order.

The results were extraordinary: when the optimised menu rolled out, carbon footprint of meal choices dropped 30%, saturated fat dropped 6%, and crucially, no one complained or even noticed. This is what Emma calls "sustainability by stealth" or "Trojan mouse" approaches that deliver real impact without the exhausting battles.

Emma explains why this matters profoundly for sustainability professionals drowning in negativity. Whenever conversations begin about reducing meat consumption or increasing plant-based canteen options, polar reactions emerge: accusations of "banning meat," claims of being a "Scrooge" after the consumerism-filled festive season, or walls of what-aboutism (what about wind turbine blades, range anxiety, plastic recycling rates).

This negativity is not just draining; it actively kills momentum, derails conversations, and leaves sustainability teams fighting uphill battles daily whilst making minimal progress.

The episode tackles why negativity is so prevalent in climate and sustainability conversations, particularly around politically sensitive topics like food, renewable energy, and flying.

Emma identifies three common negative patterns: what-aboutism (endless objections ignoring any reasons something might work), accusations that sustainability means "banning everything" or "penalising us," and the exhausting cycle of needing to prove your case with facts whilst the other side throws up barriers. This approach misses the point entirely and more critically, stops all forward momentum.

Emma introduces the concept that people need to hear things seven times before they will buy them (a classic marketing principle). If those seven exposures are negative, negative, negative, the battle becomes exponentially harder.

The solution is not more facts, bigger business cases, or harder fights. The solution is reframing towards can-dos, easy wins, and low-friction changes that build momentum rather than requiring martyrdom. As Emma puts it: "Momentum beats martyrdom. We don't all have to be martyrs. We don't have to fight it all every day of the week."

The dish swap research proves something powerful about human behaviour and organisational change. Once people experience success (seeing that changes worked without causing pain), they become far more...