

Sustainability In The Air
SimpliFlying
Travel makes the world a smaller and better place. Aviation has bounced back. However, as we experience climate change, we worry about our environmental impact. Sustainability in The Air, the world’s first podcast dedicated to sustainable aviation. Every week, Shashank Nigam, the CEO of SimpliFlying, talks to Airline, airport, travel and technology executives to help make sense of the Wild-West scenario. Our mission is to show the many paths to net zero, for an industry that is one of the hardest to decarbonize. Whether you're a frequent flier, an airline Executive or just love traveling, if you care about sustainable global travel then welcome aboard. Our mission is to get you the latest insight from a top airline or technology C-level executive willing to share their organization's journey to building a sustainable future.Feel free to reach out via email to podcast@simpliflying.com. For more content about sustainable aviation visit our website simpliflying.com and join the movement. It’s about time.
Episodes
Mentioned books

Jul 24, 2025 • 34min
Why Twelve believes power-to-liquids will revolutionise sustainable aviation fuel production
In this episode, we speak with Etosha Cave, Co-Founder and Chief Science Officer of Twelve, who shares how the carbon transformation company harnesses carbon dioxide from industrial waste streams to produce efuels. Twelve is one of the visionary companies featured in our new book Sustainability in the Air: Volume Two. You can learn more about the book and order a copy here.Cave discusses:Twelve’s carbon transformation technology that mimics photosynthesis, taking CO2 from industrial emissions, air, and landfills, combining it with water and renewable electricity through metal catalysts to create jet fuel and other products.Strategic partnerships with airlines like Alaska Airlines and International Airlines Group (IAG) and tech companies like Microsoft, leveraging growing consumer demand for carbon-neutral travel solutions and the scalability advantages of power-to-liquids.Twelve’s Moses Lake, Washington plant location choice, capitalising on abundant hydropower, state incentives, geographic proximity to partners, and the emerging cleantech hub.How the company navigates political risks around climate incentives by focusing on carbon management as a bipartisan issue that creates jobs and economic value.Cave also shares her vision for a future with completely closed carbon cycles and explains how Twelve aims to transform waste CO2 into the building blocks for everything from consumer products to aviation fuel.If you LOVED this episode, you’ll also love the conversation we had with Nicholas Flanders, Co-Founder & CEO of Twelve, who discusses the crucial role of clean technology in addressing environmental challenges. Check it out here. Feel free to reach out via email to podcast@simpliflying.com. For more content on sustainable aviation, visit our website green.simpliflying.com and join the movement. It’s about time.Links & more:E-Jet® Sustainable Aviation Fuel - Twelve Twelve and IAG sign historic long-term multi-million gallon SAF offtake agreement - Twelve Alaska Airlines, Microsoft and Twelve partner to advance new form of sustainable aviation fuel - Alaska Airlines United Airlines Invests in Twelve for Sustainable Aviation Fuel - Carbon Credits

Jul 10, 2025 • 50min
Why IAG believes sustainable aviation requires both collaboration and competition
In this episode, we speak with Aaron Robinson, Vice President of Sustainable Aviation Fuel (SAF) at the International Airlines Group (IAG), which has become the top airline globally for SAF use.IAG is one of the visionary companies featured in our new book Sustainability in the Air: Volume Two. You can learn more about the book and order a copy here.Robinson discusses:How IAG leveraged European incentives, Heathrow Airport programmes, and emissions trading schemes to make SAF economically viable whilst partnering with corporate customers like DHL and Microsoft to fund the price gap.Why 52% of airlines globally still haven’t used any SAF, exploring how the industry’s safety culture can create resistance to technological change and first-mover disadvantage.The cultural and policy differences driving higher SAF adoption rates in Europe versus North How regulatory backlash against sustainability claims can discourage innovation and communication about genuine progress.The role of book-and-claim systems in optimising SAF deployment whilst developing production capacity in emerging markets across Latin America, Asia, and Africa.Why the industry needs both elements – collaboration to build infrastructure foundations and healthy competition to drive innovation.Note: This interview was recorded in August 2024. For the latest figures on SAF use, follow Robinson’s ongoing LinkedIn series. You can read the first post here.If you LOVED this episode, you’ll also love the conversation we had with Jolanda Stevens, Program Manager for Zero Emission Aviation at KLM, who shares how the airline is advancing sustainable aviation through innovation, partnerships, and strategic investment. Check it out here. Feel free to reach out via email to podcast@simpliflying.com. For more content on sustainable aviation, visit our website green.simpliflying.com and join the movement. It’s about time.Links & more:Sustainability – International Airlines GroupInfinium and Twelve raise a total of up to $1.7 billion towards eSAF production – GreenAir NewsMicrosoft backs SAF for Scope 3 business travel emissions in agreements with IAG and FEG – GreenAir News British Airways owner IAG ups sustainable fuel intake with Infinium – Forbes

Jun 26, 2025 • 47min
How the GBTA aims to align corporate travel demand with aviation sustainability goals
In this episode, we speak with Suzanne Neufang, CEO of the Global Business Travel Association (GBTA), who shares how the world’s leading business travel association is transforming corporate travel to accelerate aviation decarbonisation through industry collaboration.Neufang discusses:How sustainability priorities amongst travel managers more than doubled from 8% in 2023 to 19% in 2024, though the industry baseline remains at just 1.3 out of 5 on GBTA's sustainability maturity scale.Why sustainable aviation fuel (SAF) is the most promising decarbonisation pathway for aviation today, and how corporate customers must play an active role in stimulating market demand through SAF certificate purchases.How GBTA's Sustainability Acceleration Challenge mobilised over 240 companies to benchmark their decarbonisation efforts and identify best practices.Why GBTA takes a pragmatic rather than activist approach, focusing on harmonising standards across the complex corporate travel ecosystem to eliminate inefficiencies.How artificial intelligence holds great promise for optimising travel decisions and emissions tracking, with potential for 10-15% emissions reductions through more efficient air routing alone.Why business travel serves as a catalyst for broader aviation sustainability, given that corporate travellers are the frequent flyers responsible for most airline profits and emissions.Neufang also explains GBTA’s three-pronged strategy of bringing the industry together, rallying players around common standards, and building capacity at scale to move the entire travel industry towards more sustainable practices.If you LOVED this episode, you’ll also love the conversation we had with Sally Davey, CEO of Travalyst, who shares how the not-for-profit coalition is transforming the travel industry through collaborative data initiatives. Check it out here. Learn more about the startups, strategists, and sceptics working to close the gap between growth and green ambition in our new book ‘Sustainability in the Air: Volume Two’. Click here to learn more.Links & more:Global Business Travel Association - GBTA Sustainability - GBTA GBTA Sustainability Acceleration Challenge - GBTA Foundation Business travel bounces back: spending forecast to hit record - Skift

Jun 12, 2025 • 40min
How Heart Aerospace is rewriting the rules of new aircraft development
In this episode, we speak with Anders Forslund, Co-founder and CEO of Heart Aerospace, who shares the radical transformation his electric aircraft company has undergone in the past year — relocating from Sweden to Los Angeles and fundamentally changing how aerospace companies operate in the 21st century.Forslund discusses:Why Heart moved its operations to the US despite strong European roots, driven by the need to access customers, suppliers, and investors in the world’s largest aerospace market.How the industry’s talent crisis stems from decades without clean sheet aircraft development, and why bringing in top performers from SpaceX, Tesla, and other mission-driven technology companies is essential for attracting the right talent.Why all aerospace companies are actually software companies, given that most aircraft delays and crashes today stem from software issues rather than structural failures, and how this demands in-house control of software.Why companies should actively take on uncertainty rather than minimise it, viewing adaptability as more crucial than strength or intelligence in today’s rapidly changing world.How the loss of regional connectivity serves as the “canary in the coal mine” for broader industry problems, and why this represents the natural entry point for introducing new technology and training the next generation of aerospace talent.Forslund also reveals his seven-rule framework for modern aerospace product development and explains why focusing on building rather than predicting the future is the key to success.If you LOVED this episode, you’ll also love the conversation we had with Daniel Rosen Jacobson, Co-Founder & Co-CEO of Elysian Aircraft, who discusses the startup’s unique approach to electric aviation. Check it out here. Learn more about the startups, strategists, and sceptics working to close the gap between growth and green ambition in our new book ‘Sustainability in the Air: Volume Two’. Click here to learn more.Links & more:Heart Aerospace Heart Aerospace unveils full-scale 30-seat hybrid-electric aircraft demonstrator - GreenAir News Heart Aerospace relocates headquarters to Los Angeles - AviationSource NewsHeart Aerospace to Launch World’s Largest Fully Electric Aircraft in 2025 - Aviacionline

5 snips
May 29, 2025 • 52min
Why JetZero believes blended wing body aircraft are essential for net-zero aviation
Tom O'Leary, CEO and co-founder of JetZero, discusses the groundbreaking blended wing body (BWB) aircraft designed to revolutionize aviation. He shares how this innovative design can achieve up to a 50% reduction in fuel burn and emissions. With strategic partnerships involving the U.S. Air Force and industry giants like Delta, JetZero aims for unmatched aerodynamic efficiency. O'Leary highlights exciting passenger features such as eight-foot ceilings and wider seats. Get inspired by the future of sustainable aviation!

May 15, 2025 • 48min
How Edmonton International Airport is becoming a “sustainability engine” for Canada
In this episode, we speak with Marion N Chivot-Legris, Director of ESG & Sustainability Strategy at Edmonton International Airport (YEG), who shares how the Canadian airport is leveraging its unique position to drive sustainability innovation across the region.Chivot-Legris discusses:YEG’s transformation into a “sustainability engine” for the entire region, building an integrated ecosystem that brings together clean energy companies, logistics, agri-food technologies, and education beyond traditional aviation operations.The airport’s leadership in hydrogen development, leveraging Alberta’s position as Canada’s hydrogen corridor, with nearly 60% of the country’s hydrogen produced in the Edmonton metropolitan region, to test use cases from ground vehicles to potential future aircraft.YEG’s methodical approach to hydrogen adoption, starting with Toyota Mirai cars and Hyundai NEXO vehicles before progressing to heavier equipment like hydrogen-diesel dual fuel runway sweepers as stepping stones toward future hydrogen infrastructure.The airport’s complementary approach to sustainable aviation fuel (SAF) and hydrogen, and how it’s working with local partners to advance SAF production.Key lessons for airports beginning their sustainability journey: progress doesn’t require perfection, partnerships are essential, and transparency in sharing both successes and challenges builds trust and encourages collaboration.Chivot-Legris also offers unique insights into how airports can serve as innovation hubs that extend their impact far beyond traditional aviation operations.If you LOVED this episode, you’ll also love the conversation we had with Swedavia’s Lena Wennberg & Therese Forsström, who share the airport operator’s ambitious plans for a fossil-free future. Check it out here. Learn more about the innovators who are navigating the industry’s challenges to make sustainable aviation a reality, in our new book ‘Sustainability in the Air: Volume 2’. Click here to learn more.Feel free to reach out via email to podcast@simpliflying.com. For more content on sustainable aviation, visit our website green.simpliflying.com and join the movement. It’s about time.Links & More:Environmental, social & governance (ESG) - YEG CorporateHydrogen-powered runway sweepers at Edmonton Airport - International Airport Review Drone Delivery Canada expands collaborative drone operations at Edmonton International Airport - DRONELIFEEdmonton Airport and ZeroAvia partner to develop hydrogen infrastructure in Canada - FTE

May 1, 2025 • 50min
Charting the next phase of sustainable aviation: Sustainability in the Air, Vol. II
In this special episode, SimpliFlying’s CEO Shashank Nigam and Head of Sustainability Dirk Singer sit down with senior leaders from three companies featured in their upcoming book, Sustainability in the Air, Vol. II. Joining the conversation are Jonathon Counsell (Group Head of Sustainability, IAG), Diana Birkett Rakow (SVP of Public Affairs and Sustainability, Alaska Airlines), and Ashwin Jadhav (VP of Business Development, Twelve). Together, they explore how their organisations are addressing aviation’s toughest sustainability challenges — and where the industry is headed next.Here are some key highlights from the episode:Why Volume II? Singer explains why the time was right for a second volume of Sustainability in the Air: the landscape has shifted dramatically in just 18 months, with a sharper focus on commercial viability and real-world implementation.Industry maturation: The sustainable aviation sector has evolved to focus on business benefits beyond environmental credentials — being green alone is no longer enough.IAG’s SAF usage: Counsell shares how IAG has become an industry frontrunner in sustainable aviation fuel (SAF), using 162,000 tons last year — about 1.9% of its total fuel consumption.Long-term partnerships:Jadhav discusses Twelve’s landmark 14-year SAF offtake agreement with IAG – an extraordinary commitment in an industry where one-year contracts are the norm.Investing in innovation: Birkett Rakow highlights Alaska Airlines’ approach to sustainability through strategic investments in climate tech companies like Twelve, ZeroAvia, and JetZero via Alaska Star Ventures.Corporate partnerships: The discussion explores how Microsoft’s partnership with Alaska Airlines and Twelve is helping absorb the green premium — demonstrating the role non-aviation players can play in accelerating industry transformation.The role of policy: All three guests weigh in on the urgent need for government support to help scale sustainable aviation solutions.Sustainability in the Air Vol. II will be available soon, and you can preorder your copy now on Amazon. Be among the first to discover these practical insights from airlines, airports, and climate tech companies working to decarbonise aviation.Links & More:Sustainability in the Air: Innovators transforming aviation for a greener future - SimpliFlying Alaska Airlines’ multi-faceted approach to achieving net zero by 2040 - SimpliFlying How Twelve’s carbon transformation technology is making carbon-neutral fuels a reality - SimpliFlying Why IAG is focusing on the practicality of SAF more than emerging technologies - SimpliFlying

Apr 24, 2025 • 40min
How KLM is working towards a zero-emission future in aviation
In this episode, we speak with Jolanda Stevens, Program Manager for Zero Emission Aviation at KLM, who shares how the airline is preparing for a more sustainable future of aviation through innovative technologies and strategic investment in emerging solutions.Stevens discusses:KLM’s unique approach to innovation with a dedicated team focused on the “disruptive” aviation technology, working on future solutions like electric and hydrogen aircraft whilst maintaining their core flight operations.How different zero-emission technologies will serve specific segments of KLM’s network, with battery-electric suitable for shorter routes, hydrogen for medium-range, and sustainable aviation fuel (SAF) remaining crucial for long-haul flights.KLM’s systematic process for evaluating potential technology partners based on aircraft concepts, technical assumptions, company credibility, and even “gut feeling” to determine which innovations deserve investment.The airline’s research into passenger perceptions of new technologies, addressing critical questions about safety, comfort, and willingness to pay for sustainable aviation solutions.KLM’s role in driving system-wide transformation, recognising that zero-emission aviation requires changes in infrastructure, legislation, ground handling, and safety protocols across the entire industry.As a pilot who found deeper purpose in sustainability work, Stevens offers unique insights into how a 105-year-old airline is actively shaping aviation’s next technological revolution rather than simply waiting for it to arrive.If you LOVED this episode, you’ll also love the conversation we had with Amelia DeLuca, Chief Sustainability Officer at Delta Air Lines, who shares the airline’s collaborative vision for sustainability. Check it out here. Learn more about the innovators who are navigating the industry’s challenges to make sustainable aviation a reality, in our new book ‘Sustainability in the Air’. Click here to learn more.Feel free to reach out via email to podcast@simpliflying.com. For more content on sustainable aviation, visit our website green.simpliflying.com and join the movement. It’s about time.Links & More:What KLM does to make air travel more sustainable - KLM KLM and ZeroAvia plan zero-emission demonstration flight using liquid hydrogen - Zeroavia KLM joins Heart Aerospace, will help design its electric turboprop - Aviacionline Why is KLM Calling for Stricter SAF Policies from the EU? - Sustainability Magazine

Apr 17, 2025 • 40min
How a pilot-turned-CEO transformed air travel in the Baltics
In this conversation, Martin Gauss, the former CEO of airBaltic and an active airline pilot, shares his transformative journey in modernizing air travel in the Baltics. He highlights the efficiency of the Airbus A220 fleet, boasting 30% lower fuel consumption. Gauss discusses airBaltic’s innovative dual business model and commitment to sustainability, aiming for carbon neutrality by 2050. He reflects on adopting cutting-edge technologies, such as Starlink internet, while balancing growth with environmental responsibility, positioning Latvia as a leader in aviation innovation.

Apr 10, 2025 • 35min
How Expliseat helps airlines cut carbon without compromising on comfort
In this episode, we speak with Amaury Barberot, CEO of Expliseat, about how the company's innovative lightweight seating technology is delivering immediate sustainability benefits for airlines while improving their bottom line.Barberot discusses:Expliseat's revolutionary aircraft seat design made from carbon fibre and titanium that is 30% lighter than comparable products, saving approximately 1,200 kilograms when retrofitted on an Airbus A320 or Boeing 737.The immediate environmental impact of their lightweight seats, which deliver a 6% CO2 emission reduction per passenger without requiring airlines to wait for future technology developments.How the weight reduction focuses on the "invisible parts" of the seat, preserving passenger comfort while still delivering sustainability benefits.The company's circular manufacturing approach, which recycles industrial waste from seat frames to create new components like tray tables, further reducing their environmental footprint.Their recent expansion into the rail industry, where their lightweight technology helps train operators overcome axle weight limitations to improve passenger amenities or increase capacity.Barberot emphasises that Expliseat represents one of the rare sustainability solutions where "CSO and CFO do not fight," highlighting how their technology aligns environmental and economic objectives for airlines across different regions and business models.If you LOVED this episode, you’ll also love the conversation we had with Dr. Mark Hiller, CEO at RECARO Aircraft Seating and Recaro Holding. Check it out here. Learn more about the innovators who are navigating the industry’s challenges to make sustainable aviation a reality, in our new book ‘Sustainability in the Air’. Click here to learn more.Feel free to reach out via email to podcast@simpliflying.com. For more content on sustainable aviation, visit our website green.simpliflying.com and join the movement. It’s about time.Links & More:Expliseat Expliseat Showcases New Lightweight Seating at MRO Americas 2025 - Aviation Pros Why every kilogram counts: the critical role of cabin design in sustainable aviation - SimpliFlying Expliseat TiSeat 2 X: the inside story - Aircraft Interiors International Expliseat brings ultra-light aircraft seats to rail industry - Runway Girl Network Expliseat aims to be lightweight champion in aircraft seats - Flight GlobalHow sustainable aircraft seats can be a game-changer - SimpliFlying