this post was submitted on 31 Jul 2024
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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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As US bets big on hydrogen for clean energy, local communities worry about secrecy and public health (grist.org)
submitted 3 months ago by jeffw@lemmy.world to c/climate@slrpnk.net
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[–] knightly@pawb.social 3 points 3 months ago (1 children)

Also, it's the hydrogen too because there's no economical and reliable way to store hydrogen except in the form of hydrocarbons, so the whole concept is self-defeating.

[–] Tiresia@slrpnk.net 0 points 3 months ago (1 children)

Technically that's not a public health issue. And you can reliably store hydrogen for a day or two without too much leaking out, which does make it economical and reliable in rocketry and maybe aviation.

[–] knightly@pawb.social 2 points 3 months ago (1 children)

So, not economical enough for domestic or industrial uses, and battery storage of energy can last longer?