this post was submitted on 29 Apr 2024
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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.

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[–] [email protected] 9 points 6 months ago (2 children)

Between 2012 and 2022 electricity generation from coal has gone down from 2400TWh to 1427TWh for the G7. Most of that comes down to the US, Japan and Germany in that order.The UK and France have basicaly no coal left, besides some rarely running plants and Italy and Canada do exit coal a bit slowler, but do not have too much left anymore.

To look a bit closer. The US has the inflation reduction act and is building out renewables at record pace, while gas is killing coal in most places. The speed in decline is rather rapid. Japan has closed down its nuclear power plants after Fukushima, but is restarting them about now, so a decline in coal consumption is possible. Germany did phase out all its nuclear power plants until last year, but still managed to have a decline in coal electricity generation, due to building out renewables fairly quickly. This means that should go even faster.

So yeah, this might happen. Japan is the one to watch though. It really does not built much clean energy these days.

[–] Valmond 1 points 6 months ago

Yep, but we need to feed the energy needs of the rest of the world (gas and coal is at its highest ever worldwide) or find something to fix that. I mean if we want to save the planet I guess.

[–] [email protected] 0 points 6 months ago (2 children)
[–] [email protected] 5 points 6 months ago (1 children)

Over the past year coal has only generated 1.2% of power in the UK

[–] [email protected] 2 points 6 months ago (1 children)

We mine and export as well as a large internal household market. Still lots of coal unfortunately, we may have stopped using it for power generation but it's still being used.

[–] [email protected] 1 points 6 months ago

Looks like there's one mine left operating at any real capacity. ~100,000 tonnes a year.

https://en.wikipedia.org/wiki/List_of_coal_mines_in_the_United_Kingdom#21st_century

Much of that mine's output is apparently ground down for carbon filters, although it used to be used at a nearby steelworks that I think is now shut.

Domestic use of coal is pretty rare, most people not using gas or electric are using wood burners.

[–] [email protected] 5 points 6 months ago

What?

There's Ratcliffe-on-Soar and that doesn't run all the time, and very rarely at anything approaching full power. It's closing for good later this year.