this post was submitted on 22 Oct 2023
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Climate - truthful information about climate, related activism and politics.

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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.

Recommended actions to cut greenhouse gas emissions in the near future:

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[–] [email protected] 24 points 2 years ago (14 children)

However, the government indicated to the Guardian that it would continue to push hydrogen for home heating, and the body that represents most of the heating industry also vowed to continue to pursue it

If the tory government, and big oil industry, are pushing for something specific, then I assume its a terrible idea and is being used as a distraction. This reads to me as a way for them to distract from other viable options and grind the change away from fossil fuels to a halt

[–] [email protected] -3 points 2 years ago* (last edited 2 years ago) (13 children)

Green hydrogen from renewables makes sense to help load balance. Most newish boilers can burn hydrogen, and the infrastructure is in place already, so it makes sense as a transition fuel

Plus

https://www.theguardian.com/business/2023/oct/09/worlds-largest-offshore-windfarm-project-starts-powering-uk-grid

[–] [email protected] 2 points 2 years ago (1 children)

Yeah that's stupid. We won't have a abundance of hydrogen, or extra energy to burn for years to come. This hydrogen boiler thing is just a measure to stay on fossils for longer, because certain models will have problems with it and there won't be enough hydrogen available. Which means oil companies will benefit.

[–] [email protected] 1 points 2 years ago* (last edited 2 years ago)

Renewables are peaky, how do you propose we smooth those peaks? Hydrogen or batteries seem the only two viable options for energy storage.

Plus you can make ammonia from renewables for use as a ship fuel or fertilizer

Btw energy companies are the ones with the capital to fund the transition off fossil fuels, how else do you propose funding it?

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