David Cebon
davidcebon.bsky.social
David Cebon
@davidcebon.bsky.social
Director, Centre for Sustainable Road Freight http://www.csrf.ac.uk and Professor of Mechanical Engineering at University of Cambridge. Founding member of Hydrogen Science Coalition https://h2sciencecoalition.com/
How much money did the USA spend on defense against the USSR during the cold war and how much is it spending on mitigating climate change? Which threat was higher risk?

Listen to Carl Sagan on this topic...

youtu.be/4C6co5qXEE4?...
Carl Sagan on Military Spending and Climate Change
YouTube video by Lucky Tran
youtu.be
February 8, 2025 at 11:25 PM
It was obvious 20 years ago that hydrogen was a non-starter for powering passenger aircraft.

www.reuters.com/business/aer...
Airbus postpones development of new hydrogen aircraft
Airbus said on Friday it is delaying plans to develop a hydrogen-powered commercial aircraft by the middle of next decade, citing slower than expected developments in technology.
www.reuters.com
February 8, 2025 at 11:10 PM
Reposted by David Cebon
The Hydrogen Science Coalition has joined Bluesky 🦋 We're a coalition of academics, scientists & engineers bringing an evidence-based view on #hydrogen's role in the #energy transition, free of vested interest. Follow us for regular updates and find out more on our website h2sciencecoalition.com
Hydrogen Science Coalition
A coalition of academics & engineers bringing an evidence-based view on hydrogen's role in the energy transition.
h2sciencecoalition.com
December 16, 2024 at 12:38 PM
This morning I had the opportunity to see, and ride on the Great Western Railway (GWR) experimental battery electric train at West Ealing in London.

www.google.com/amp/s/www.bb...
GWR rapid-charging battery train trials under way
The trains are converted from old Underground trains and will be rolled out in the Thames Valley.
www.google.com
December 13, 2024 at 12:55 PM
It has been three years since the @Hydrogen Science Coalition was formed h2sciencecoalition.com
Hydrogen Science Coalition
A coalition of academics & engineers bringing an evidence-based view on hydrogen's role in the energy transition.
h2sciencecoalition.com
November 17, 2024 at 12:17 PM
Great overview of the Hydrogen Economy by Chuck Kutscher. Worth watching... www.youtube.com/watch?v=sQwS...
What ever happened to the Hydrogen Economy?
YouTube video by Colorado Renewable Energy Society (CRES)
www.youtube.com
November 17, 2024 at 10:50 AM
Great article by @MLiebreich about the safety issues with the proposed 'Hydrogen Village' trial in Redcar.

It is remarkable that @NGNgas, and @RedcarCleveland think this is reasonable behaviour and that @ClaireCoutinho is 'minded to go...
November 22, 2024 at 9:38 AM
A message to Ministers attending the IEA Global Conference on Energy Efficiency in Denmark this...
November 22, 2024 at 9:38 AM
Shipping Ammonia around the world for use as a fuel could have significant environmental consequences. A few thoughts and simple calcs in this LinkedIn...
November 22, 2024 at 9:38 AM
World's largest CCS project 'Gorgon' in Western Australia undershot its 5-year carbon capture target by 50%. This is not unlike the Canadian 'Quest' blue hydrogen project by Shell. More details...
November 22, 2024 at 9:44 AM
@h2coalition At last a little evidence in the noise around hydrogen! It is great to see this new group being formed to provide some information amongst the hydrogen hype. I am very pleased to be part of this initiative.
November 22, 2024 at 9:44 AM
What do you think about Direct Air Capture of CO2 emissions?

I have done a few calculations of the magnitude of the task in this LinkedIn post. I would be interested in your...
November 22, 2024 at 9:50 AM
Video by YouTuber Tom Scott about electrification of long-haul road freight.

A quote: "I wouldn't be too surprised if those wires become part of everyday life on the road in the next couple of decades"

Well worth a view...

https://youtu.be/_3P_S7pL7Yg
November 22, 2024 at 9:50 AM
Howarth and Jacobson's sensitivity analysis.

Critics of the paper have pointed to its assumptions as being biased. I have supported the paper strongly in public. My reasoning is...
November 22, 2024 at 9:50 AM
Landmark paper on GHG emissions of Blue Hydrogen by @howarth_cornell and @mzjacobson

This paper is a must read for anyone considering Blue Hydrogen as a low-carbon alternative to fossil...
November 22, 2024 at 9:56 AM
I am pleased to announce that we’re part of a consortium that’s been commissioned by @InnovateUK through @Department for Transport to conduct a study into the UK’s first #eHighway, as part of the plan for the #decarbonisation of road...
November 22, 2024 at 9:56 AM
I am very sad to report the passing of good friend and colleague Prof Noble Banadda, of Makarere University, who died on 1 July of Covid-19.

https://eagle.co.ug/2021/07/02/sad-as-makereres-prof-noble-banadda-succumbs-to-covid-19.html
Sad as Makerere's Prof. Noble Banadda succumbs to #Covid-19
Professor Noble Banadda, a Bio-systems Engineer at the de...
eagle.co.ug
November 22, 2024 at 9:56 AM
Great article about the hydrogen economy by Ugo Bardi. Excellent discussion of the issues with Platinum catalysts in fuel cells... Well worth a read.
https://cassandralegacy.blogspot.com/2020/12/the-hydrogen-hoax-confessions-of-former.html
The Hydrogen Hoax: Confessions of a Former Hydrogenist
A blog about collapse as caused by depletion of mineral r...
cassandralegacy.blogspot.com
November 22, 2024 at 10:02 AM
I have just completed a blog summarising arguments about a hydrogen economy. It has been published in Inside Track by Green Alliance. I would be interested in your views......
November 22, 2024 at 10:02 AM