Sustainability in the Air – The Book

Meet the pioneers of sustainable aviation.

Innovators transforming aviation.

Climate change concerns are making the aviation industry turn to sustainable aviation fuel (SAF), electric, and hydrogen-powered aircraft to cut emissions. However, scaling these technologies requires significant innovation.

“Sustainability in the Air” highlights the journeys of entrepreneurs, executives, and investors who are navigating these challenges and paving the way for the future of aviation.

Companies featured in Sustainability in the Air


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Sustainability in the Air charts

Innovators in the book

Learn from

Innovators taking action

Dan Rutherford, Aviation & Maritime Program, ICCT

Dr. Susanne Becken, Prof. Sustainable Tourism, Griffith University

Nathan Millecam, CEO, Electric Power Systems

Anders Forslund, CEO & Co-Founder, Heart Aerospace

Gregory Constantine, CEO & Co-Founder, Air Company

Val Miftakhov, CEO & Co-Founder, ZeroAvia

Adam Goldstein, CEO & Co-Founder, Archer Aviation

Andre Stein, Chief Strategy Officer, Eve Air Mobility

Amy Burr, President, JetBlue Ventures

Amelia DeLuca, Chief Sustainability Officer, Delta Air Lines

Paul Eremenko, CEO & Co-Founder, Universal Hydrogen

Maarten Koopmans, CEO, KLM Cityhopper

And many more…

Dan Rutherford
Susanne Becken
Nathan Millecam
Anders Forslund
Gregory Constantine
Val Miftakhov
Adam Goldstein
Andre Stein
Amy Burr
Amelia DeLuca
Paul Eremenko
Marteen Koopmans

About the authors


Shashank Nigam

Shashank Nigam is the founder and CEO of SimpliFlying. Having consulted for more than 100 airlines over 15 years, Nigam is a frequent keynote speaker and has been widely featured in major media outlets like The New York Times, The Wall Street Journal and the BBC. His previous book, SOAR, was an Amazon bestseller and is currently being taught to Master’s students at Cranfield University (UK) and Embry-Riddle (USA). Sustainability in the Air is his second book. He is also the host of a leading podcast with the same name.

Dirk Singer

Dirk Singer is the Head of Sustainability at SimpliFlying, an industry-leading aviation consulting firm dedicated to shaping a greener and more environmentally conscious future for air travel. He is also the co-founder of several successful creative agencies including Honey, Rabbit and Cow. Singer’s career has spanned more than two decades, during which he has written white papers, newsletters and essays on climate change related issues, reaching thousands of subscribers in the aviation industry. Sustainability in the Air is his first book.


Get signed copies of the book



The Economist COP28 Countdown
London, UK



TED Countdown
London, UK



Skift Aviation Forum
Dallas, TX, USA



Aviation Carbon
London, UK



Dubai Air Show
Dubai, UAE

Why is it important

As the leader of one of the world’s largest airlines, I recognize our responsibility in contributing to climate change as well as our responsibility to solve it. It’s no longer enough for us to connect the world without making sure it has a future.

Scott Kirby
CEO, United Airlines

Connecting the world and protecting our environment for future generations cannot be mutually exclusive. Travelers should not have to choose between seeing the world and saving the world.

Ed Bastian
CEO, Delta Airlines

If we thought of sustainability in the same way that we think about safety, I’m quite sure we’d be incentivised to create solutions to actually solve those problems.

Greg Foran
CEO, Air New Zealand

If we wait for the ideal technology to be available, then the world is cooked. We miss the net-zero targets. We miss the temperature rise targets.

Warren East
CEO, Rolls-Royce

Solving the climate challenge requires collaboration across industries. Decarbonizing aviation is much harder than decarbonizing road transport, as the laws of physics are against us. No one solves these challenges alone.

Topi Manner
CEO, Finnair

Increasingly, travelers will make choices that do include carbon emissions and therefore, the environmental performance [of their airline]. The people that don’t respond in the sort of ways that we’ve been doing may well be history.

Tony Douglas
CEO, Etihad Airways

Buy Sustainability in the Air today!

Read one of the chapters! Download it here.

Sustainability in the Air provides inspiration from
pioneers transforming aviation and leading the net zero pathway.

Sustainability in the Air provides inspiration from pioneers transforming aviation and leading the net zero pathway.


Sustainable Aviation Fuels Powerlist 2023

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