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submitted 11 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[-] CJOtheReal@ani.social 3 points 11 months ago

Efficiency below 50% is pretty bad...

[-] Tosti@feddit.nl 4 points 11 months ago* (last edited 10 months ago)
[-] CJOtheReal@ani.social 1 points 11 months ago

Using better and more efficient energy storages that don't just evaporate through tanks is better. There are more options than hydrogen.

Hydrogen is likely only being usable for Aircrafts because of the energy density, everything else is just inefficient.

Steel industry can use less energy by using electricity directly most industries can use electricity directly more efficiently.

And heat pumps are actually not that much more expensive than a new Gas heater.

[-] Tosti@feddit.nl 1 points 11 months ago* (last edited 10 months ago)

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this post was submitted on 26 Nov 2023
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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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