this post was submitted on 02 Mar 2025
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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world. About 1C of total warming. Second chart: about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability. Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases. About 0.5C of cooling with large error bars from SO2.

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Hydrogen Is An Indirect Greenhouse Gas So Now Hydrogen Proponents Are Denying It (cleantechnica.com)
submitted 1 week ago by Sunshine@lemmy.ca to c/climate@slrpnk.net
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[–] kbal@fedia.io 31 points 1 week ago (1 children)

If a global hydrogen economy replaced the current fossil fuel-based energy system and exhibited a leakage rate of 1% then it would produce a climate impact of 0.6% of the current fossil fuel based system

Okay then. Good to know, in case we end up in some kind of alternate universe where that has any chance of happening.

[–] bane_killgrind@slrpnk.net 11 points 1 week ago (1 children)

yeah still sounds like a better alternative. Really loaded headline.

[–] fluffykittycat@slrpnk.net 2 points 6 days ago

tesla fanboys are the worst I swear

[–] perestroika@slrpnk.net 8 points 1 week ago* (last edited 1 week ago) (1 children)

The article itself provides the data to argue that it's sensationalist.

Hydrogen is therefore an indirect greenhouse gas with a global warming potential GWP of 5.8 over a 100-year time horizon. A future hydrogen economy would therefore have greenhouse consequences and would not be free from climate perturbations.

If a global hydrogen economy replaced the current fossil fuel-based energy system and exhibited a leakage rate of 1% then it would produce a climate impact of 0.6% of the current fossil fuel based system. If the leakage rate were 10%, then the climate impact would be 6% of the current system

P.S.

Nobody in their right mind will spend energy to manufacture a gas and then let 10% of it leak out unused.

Leak rates characteristic of fossil gas systems are related to the nature of fossil gas systems.

[–] itslilith@lemmy.blahaj.zone 5 points 6 days ago

True, but also hydrogen is notoriously difficult to contain, as it diffuses even through metal. This still seems sensationalist at best

[–] Geobloke@lemm.ee 6 points 6 days ago

Just for the unaware, check the author out. He basically gets paid to shit on hydrogen

[–] belastend@slrpnk.net 8 points 1 week ago

God i hate this AI font

[–] JackGreenEarth@lemm.ee 4 points 1 week ago

SEAR NO EVIL

WO NO EVIL

IMPACT

[–] vaionko@sopuli.xyz 3 points 6 days ago

HYDROGEN DUSTRY

SEAR NO EVIL

WO NO EVIL

IMPACT