Can We Make Flying "Green"?

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At 3 mins 38 seconds I confused the horizontal with the vertical axis. Sorry about that!

What can we do to reduce the carbon footprint of air travel? In this video we look at battery powered planes, hydrogen powered ones, bio fuel, and synthetic kerosene.

Data about airplane emissions come from Our World in Data
https://ourworldindata.org/co2-emissions-from-aviation

The figure for the increase of airplane efficiency is from this report:
https://theicct.org/sites/default/files/publications/Aircraft-fuel-burn-trends-sept2020.pdf

The figure for the energy per volume and energy per mass values for different fuels is from this paper:
https://www.mh-aerotools.de/company/paper_14/MP-AVT-209-09.pdf

Data for the cost of bio jet-fuel is here:
https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2021/Jul/IRENA_Reaching_Zero_Biojet_Fuels_2021.pdf

The paper about the increased efficiency of gene-edited microalgae is this:
https://www.nature.com/articles/nbt.3865

The number for the carbon-dioxide emissions of synthetic jet fuel comes from here:
https://www.transportenvironment.org/wp-content/uploads/2021/02/FAQ-e-kerosene-1.pdf

Numbers for the cost of synthetic jet fuel are from here:
https://theicct.org/wp-content/uploads/2022/02/fuels-us-europe-current-future-cost-ekerosene-us-europe-mar22.pdf

Market estimates for the increase in air fuel demand are here:
https://www.energy.gov/sites/prod/files/2020/09/f78/beto-sust-aviation-fuel-sep-2020.pdf

The recent report from the International Air Transport Association calling for support for synthetic fuels is here: https://www.iata.org/en/pressroom/2022-releases/2022-06-21-02/

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Many thanks to Jordi Busqué for helping with this video http://jordibusque.com/

00:00 Intro
00:47 How Bad is Flying?
02:30 Electric Planes
06:32 Hydrogen
09:05 Biofuels
13:00 Synthetic Kerosene
16:05 Sponsor Message

#science #technology #environment