Re: Next steps towards a net zero IETF
John Levine <johnl@taugh.com> Sat, 01 April 2023 10:25 UTC
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From: John Levine <johnl@taugh.com>
To: ietf@ietf.org
Subject: Re: Next steps towards a net zero IETF
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It appears that Hesham ElBakoury <helbakoury@gmail.com> said: > >Hydrogen-powered planes were voted as one of breakthrough technologies this >year. Not by anyone who understands the physics. To get a useful amount of H2 in a reasonable volume, it's compressed to 700 bar (10,000 psi) which requres a big heavy tank to contain it. Unlike kerosene, H2 is extremely flammable if it leaks; 4% in air can explode. Even if someone figured out how to make the big heavy tank fit in an airplane, would you like to ride in a flying bomb? I wouldn't. Battery planes with rarely used jet fuel range backup might make sense if you can deal with the weight of both the battery system, electric motors driving some kind of propellor, and the fuel system, probably something like an existing jet engine. I'm not holding my breath for that, either. I have seen claims about planes running on biodiesel made from plant and food waste but scaling that up will be a challenge. I would rather the IETF stick to plausible technology and start with realistic models of the carbon budgets for our meetings and how they would change if we changed the way we met. R's, John
- Re: [admin-discuss] Next steps towards a net zero… John Levine
- Next steps towards a net zero IETF Greg Wood
- Re: Next steps towards a net zero IETF Christian Huitema
- Re: Next steps towards a net zero IETF Greg Wood
- Re: Next steps towards a net zero IETF Wes Hardaker
- Re: [admin-discuss] Next steps towards a net zero… John Levine
- Re: [admin-discuss] Next steps towards a net zero… John C Klensin
- Re: [admin-discuss] Next steps towards a net zero… Richard Shockey
- Re: [admin-discuss] Next steps towards a net zero… Hesham ElBakoury
- Re: Next steps towards a net zero IETF Eliot Lear
- Re: [admin-discuss] Next steps towards a net zero… Andrew Sullivan
- Re: Next steps towards a net zero IETF George Michaelson
- Re: Next steps towards a net zero IETF Brian E Carpenter
- Re: Next steps towards a net zero IETF Ross Finlayson
- Re: Next steps towards a net zero IETF Alexander Pelov
- Re: [admin-discuss] Next steps towards a net zero… Richard Shockey
- Re: [admin-discuss] Next steps towards a net zero… Bob Hinden
- Re: Next steps towards a net zero IETF Charlie Perkins
- Re: [admin-discuss] Next steps towards a net zero… Richard Shockey
- Re: Next steps towards a net zero IETF Christian Huitema
- Re: Next steps towards a net zero IETF Raghu Saxena
- Re: Next steps towards a net zero IETF Christian Huitema
- Re: Next steps towards a net zero IETF Brian E Carpenter
- Re: Next steps towards a net zero IETF Daniel Migault
- Re: Next steps towards a net zero IETF Masataka Ohta
- Re: Next steps towards a net zero IETF Daniel Migault
- Re: [admin-discuss] Next steps towards a net zero… Masataka Ohta
- What are our next steps? Re: Next steps towards a… Eliot Lear
- Re: [admin-discuss] Next steps towards a net zero… Julian Reschke
- Re: [admin-discuss] Next steps towards a net zero… Alexander Pelov
- Re: [admin-discuss] Next steps towards a net zero… Masataka Ohta
- Re: [admin-discuss] Next steps towards a net zero… Phillip Hallam-Baker
- RE: [admin-discuss] Next steps towards a net zero… Michael McBride
- Re: [admin-discuss] Next steps towards a net zero… Phillip Hallam-Baker
- Re: Next steps towards a net zero IETF willi uebelherr
- Re: Next steps towards a net zero IETF Andrew McConachie
- Re: Next steps towards a net zero IETF Julian Reschke
- Re: Next steps towards a net zero IETF Christian Huitema
- Re: Next steps towards a net zero IETF Fred Baker
- Re: Next steps towards a net zero IETF touch@strayalpha.com
- Re: Next steps towards a net zero IETF Julian Reschke
- Re: Next steps towards a net zero IETF Abdussalam Baryun
- Re: Next steps towards a net zero IETF Richard Shockey
- Re: Next steps towards a net zero IETF Michael Richardson
- Re: Next steps towards a net zero IETF Andrew McConachie
- Re: Next steps towards a net zero IETF Alexander Pelov
- Re: Next steps towards a net zero IETF Hesham ElBakoury
- Re: Next steps towards a net zero IETF Christian Huitema
- Re: Next steps towards a net zero IETF Hesham ElBakoury
- Re: Next steps towards a net zero IETF John Levine
- Re: Next steps towards a net zero IETF Kathleen Moriarty
- Re: [admin-discuss] Next steps towards a net zero… John C Klensin
- Re: Next steps towards a net zero IETF John C Klensin
- Re: [admin-discuss] Next steps towards a net zero… Daniel Migault
- Re: [admin-discuss] Next steps towards a net zero… Brian E Carpenter
- Re: [admin-discuss] Next steps towards a net zero… Michael Richardson
- Re: [admin-discuss] Next steps towards a net zero… Lars Eggert
- Re: Next steps towards a net zero IETF Laurence Lundblade
- Re: [admin-discuss] Next steps towards a net zero… John C Klensin
- Re: [admin-discuss] Next steps towards a net zero… Brian E Carpenter
- Re: [admin-discuss] Next steps towards a net zero… Abdussalam Baryun
- Re: [admin-discuss] Next steps towards a net zero… Mezgani Ali
- Re: [admin-discuss] Next steps towards a net zero… Bob Hinden
- Re: [admin-discuss] Next steps towards a net zero… Toerless Eckert
- Re: [admin-discuss] Next steps towards a net zero… Brian E Carpenter
- Re: [admin-discuss] Next steps towards a net zero… Lars Eggert
- Re: [admin-discuss] Next steps towards a net zero… Lars Eggert
- Re: [admin-discuss] Next steps towards a net zero… Eliot Lear
- Re: [admin-discuss] Next steps towards a net zero… John C Klensin
- Re: [admin-discuss] Next steps towards a net zero… Abdussalam Baryun