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PODCAST

Sustainability In The Air

Aviation has many paths to net zero, and few are straightforward. Sustainability in the Air cuts through the noise with clear, expert-led conversations on what’s actually advancing a more sustainable future for flight in one of the hardest sectors to decarbonise.💚 Twice a month, SimpliFlying CEO Shashank Nigam speaks with airline, airport, travel, and energy leaders to unpack the decisions shaping aviation’s climate future.💚 Each month, our Head of Sustainability Dirk Singer adds a Signal episode

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All Episodes

45:22

Why EASA believes its Flight Emissions Label is key...

Sustainability In The Air ·

2026/04/02

In this episode, we speak with Martina Di Palma and Achilleas Achilleos, Sustainable Aviation Officer and Strategic Programs Officer respectively at the European Union Aviation Safety Agency (EASA). They discuss:Why existing CO2 calculators fall short: How today’s flight emissions tools rely on estimates rather than actual fuel burn data.The regulatory foundation: How the Flight Emissions Label (FEL) sits within Article 14 of the RefuelEU Aviation regulation, and why EASA is confident the scheme is

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37:54

How HIF Global’s synthetic fuels and waste-based...

Sustainability In The Air ·

2026/03/26

In this episode, Dirk Singer speaks with Meg Gentle, Executive Director at HIF Global, about how synthetic fuels and waste-based pathways could reshape the economics of sustainable aviation fuel.Gentle discusses:Why Chile’s exceptional wind resources made it the starting point for HIF’s first e-fuels facility, and how that model is now being replicated globallyHow e-fuels are produced by combining green hydrogen with captured CO2 to create transportable liquid fuels like methanol and jet fuelWhy HIF

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45:55

How Ryanair is balancing low-cost operations with...

Sustainability In The Air ·

2026/03/19

In this episode, we speak with Steven Fitzgerald, Director of Sustainability and Finance at Ryanair, who shares how Europe's largest low-cost carrier is navigating the tension between aggressive growth targets and decarbonisation commitments.Fitzgerald discusses:Ryanair's early SAF commitment before mandates existed: Why the airline set a 12.5% sustainable aviation fuel (SAF) target for 2030 five years ago, and how they've now secured access to 80% of that volume.The true cost of ETS

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54:45

How BETA Technologies is building the future of...

Sustainability In The Air ·

2026/03/05

In this episode, we speak with Kyle Clark, Founder and CEO of BETA Technologies, who shares how his company went from a college thesis to a publicly traded electric aviation manufacturer delivering real aircraft and generating revenue from military, medical and cargo customers.Clark discusses:The advantage of electric flight: How batteries deliver propulsion at 95% efficiency versus 30% for conventional engines, and how reducing the drag by 30-40% helps electric aircraft achieve meaningful range

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41:29

How Synhelion is turning renewable energy into...

Sustainability In The Air ·

2026/02/18

In this episode, we speak with Philipp Furler, Founder and CEO of Synhelion, who shares how the Swiss technology company is working to scale synthetic fuels by tackling some of the fundamental cost and infrastructure barriers facing SAF today.Furler discusses:The path to $1/litre production costs: How Synhelion targets production costs of around $1 per litre within 10-15 years through three key advantages: cheap solar energy with thermal storage enabling 24/7 operation, avoiding electrolysis and

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43:49

How Copenhagen Airports is navigating the complexity...

Sustainability In The Air ·

2026/02/05

In this episode, we speak with Sabrina Tekle Krarup Jensen, Head of Strategic Partnerships and Innovation at Copenhagen Airports A/S (CPH), who shares how the airport is navigating some of aviation’s most complex sustainability challenges.Jensen discusses:CPH’s unique role as neutral facilitator: How the airport leverages its position outside the commercial fuel supply chain to support multiple SAF projects, and connect stakeholders across the entire aviation value chain.The eSAF financing gap

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43:07

Why Firefly Green Fuels believes waste could...

Sustainability In The Air ·

2026/01/29

In this episode, Dirk Singer speaks with James Hygate, Founder and CEO of Firefly Green Fuels, about one of the more unconventional and potentially scalable sustainable aviation fuel pathways: converting sewage biosolids into jet fuel.Hygate discusses: Why Firefly is “feedstock-led”, and why that matters more than the technologyHow sewage biosolids emerged as the preferred feedstock for Firefly due to their abundance, consistency, and increasing difficulty of disposal.How hydrothermal liquefaction

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52:29

Why World Energy believes that bankable offtakes are...

Sustainability In The Air ·

2026/01/22

In this episode, we speak with Adam Klauber, Chief Sustainability Officer at World Energy, who has been at the forefront of developing book and claim mechanisms for sustainable aviation fuel since its earliest days.He discusses:The co-claims approach: Why aviation needed to diverge from renewable electricity market models by enabling both airlines (scope 1) and their corporate customers (scope 3) to claim emissions reductions from the same SAF molecules, unlocking new sources of funding.What it took

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40:38

Why airspace efficiency matters for immediate carbon...

Sustainability In The Air ·

2026/01/08

In this episode, we speak with Rachel Gardner-Poole, GAIN steering group chair and sustainable aviation consultant at NATS, the UK’s leading air traffic control provider. Gardner-Poole shares how GAIN (Green Aviation Insights Network) is bringing together air navigation service providers from around the world to optimise flight paths and reduce emissions using tools and insights that can deliver results today. She discusses:GAIN’s dual purpose: A global collaboration of air navigation service

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27:24

Best of 2025: The ideas that defined aviation’s...

Sustainability In The Air ·

2025/12/25

In this special year-end episode, we explore conversations with industry leaders revealing where sustainable aviation truly stands in 2025.Matt Gorman, Director of Carbon Strategy at Heathrow Airport, reveals airports control just 0.1% of their carbon footprint directly but use landing charges to incentivise SAF adoption.Tamara Vrooman, CEO of Vancouver Airport, explains moving their net-zero target forward to 2030 by leveraging control of central infrastructure.Lena Wennberg, Chief Sustainable

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43:17

From geothermal to green jet fuel: How Iceland could...

Sustainability In The Air ·

2025/12/11

In this episode, we speak with Nanna Baldvinsdottir, co-founder of IðunnH2, about how Iceland’s unique energy system could turn the country into a green fuel bridge between Europe and North America. A veteran of Iceland’s power sector, Nanna has spent two decades working in renewables before turning to hydrogen and e-fuels development.Nanna shares how IðunnH2 is developing a 300 MW, ~70,000 tonne-per-year e-SAF project near Keflavík International Airport, designed first to decarbonise Icelandic

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49:41

How REGENT is creating a fundamentally new mode of...

Sustainability In The Air ·

2025/11/27

In this episode, we speak with Billy Thalheimer, co-founder and CEO of REGENT, who shares how the company is redefining travel with their all-electric Seagliders. Thalheimer discusses:Solving the regional travel gap: How seagliders address the transportation problem on 50–200 mile coastal routes, creating a faster, cheaper, and greener alternative for the 40% of the world’s population living in coastal communities.Three breakthrough technologies in one vehicle: How REGENT combines wing-in-ground

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19:49

Dubai Airshow Special: Can the Middle East’s aviation...

Sustainability In The Air ·

2025/11/23

In this special compilation episode, recorded live at the Dubai Airshow 2025, five aviation industry leaders share their perspectives on whether the Middle East can balance rapid aviation growth with sustainability goals.Featuring insights from:Paul Griffiths, CEO, Dubai AirportsJulien Manhès, Head of SAF and CDR, AirbusYousif Bin Saeed Al Lootah, CEO, Lootah BiofuelsDarren Hulst, Vice President of Commercial Marketing, BoeingMichel Azar-Hmouda, President of Commercial Aviation, CAETogether, they

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40:49

How Microsoft built the corporate playbook for scope...

Sustainability In The Air ·

2025/11/13

In this episode, we speak with Julia Fidler, former Director of Market Development for Energy, Connectivity, and Sustainability at Microsoft, who shares how the company built partnerships that are reshaping corporate approaches to scope 3 emissions.Fidler discusses:How Microsoft’s early carbon fee on scope 1, 2, and 3.6 emissions created the foundation for treating business travel not just as a measurable category, but as a gateway to solving fuel emissions.How Microsoft’s Sustainability Grant

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46:11

How the oneworld BEV Fund is accelerating next...

Sustainability In The Air ·

2025/10/30

In this episode, we speak with Matthew Ridley, Director of Sustainability and Innovation at the oneworld Alliance, who shares the story behind the groundbreaking $150 million Sustainable Aviation Fuel (SAF) fund launched in partnership with the alliance’s member airlines and Breakthrough Energy Ventures (BEV).Ridley discusses:The alliance investment advantage: How pooling resources across oneworld members creates access to world-class venture capital expertise, superior deal flow, more diverse

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41:11

From problem to solution: How sargassum seaweed could...

Sustainability In The Air ·

2025/10/23

In this episode, we speak with Dr. Mar Fernández-Méndez, founder of MacroCarbon and professor at the University of Bremen, about her journey from Arctic ice researcher to seaweed entrepreneur. Dr. Fernández shares how she's turning pelagic sargassum into sustainable aviation fuel (SAF) while creating a carbon-negative process that enhances marine biodiversity.Dr. Fernández discusses:How Sargassum differs from other algae approaches, avoiding the pitfalls that have plagued microalgae biofuel

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53:25

How Vancouver International Airport is racing to net...

Sustainability In The Air ·

2025/10/16

In this episode, we speak with Tamara Vrooman, CEO of Vancouver International Airport (YVR), who shares how the airport has committed to achieving net zero by 2030, and the detailed roadmap they’ve developed to get there.Vrooman discusses:YVR’s accelerated net zero timeline: How they moved from a 2040 target to 2030 by creating a detailed, measurable roadmap with component parts that track progress.Four pathways to net zero: Capital build improvements (including Canada’s largest geo-exchange system

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54:59

How Syzygy Plasmonics is turning biogas into...

Sustainability In The Air ·

2025/10/02

In this episode, we speak with Trevor Best, Co-founder and CEO of Syzygy Plasmonics, who shares how his company’s proprietary photocatalytic technology converts waste biogas into sustainable aviation fuel, and has the potential to reach fossil jet fuel parity. Best discusses:NovaSAF’s unique value proposition: converting biogas from landfills, dairy farms, and wastewater treatment plants into SAF, simultaneously addressing methane emissions whilst decarbonising aviation transport.The technology’s

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49:44

How two young women are revolutionising direct air...

Sustainability In The Air ·

2025/09/25

In this episode, we speak with Silvia Pugliese and Monica Larrazabal, co-founders of Norma and the only all-female founding team among the c.150 direct air capture startups operating today. They share how their breakthrough supercapacitor approach could drastically slash the energy requirements of carbon capture.Pugliese and Larrazabal discuss:How they discovered a way to "cheat" on energy requirements by combining supercapacitor energy storage technology with CO2 capture, creating a

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39:22

How OMV is pioneering Europe's sustainable aviation...

Sustainability In The Air ·

2025/09/18

In this episode, we speak with Nina Marczell, Senior Vice President of Industrial Sales & Marketing for Fuels & Feedstock at OMV, who shares how the integrated energy company is leading sustainable aviation fuel development from early production to commercial scale across Europe.Marczell discusses:OMV's early-mover advantage, launching SAF production at their Austrian refinery in 2022 – well ahead of EU mandates – starting with 2,000 tonnes through co-processing and scaling to 4,000

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166 results

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