this post was submitted on 24 Feb 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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[โ€“] [email protected] 12 points 9 months ago (3 children)

It helps that Spain has world-class trains

As Spaniard I wouldn't go that far.. but yeah they are good. But not all of them ๐Ÿ˜… specially the shorter routes. Apart from some maintenance issues, It doesn't help that from time to time a line is down because they have stolen copper wires...

[โ€“] [email protected] 8 points 9 months ago (2 children)

One tragic fact of life is that it doesn't really take that much to become world-class as far as trains go. The HSR network alone basically places you on the podium.

[โ€“] darreninthenet 2 points 9 months ago

Depends on the age of your tracks, if you have old Victorian bridges etc or aging signal systems it can be very hard indeed.

(London btw)

[โ€“] [email protected] 2 points 9 months ago

To be fair (and Im from a family of train workers, did my master thesis there), there is a lot of mismanagement and politics, lack of investment and stuff, which decrease the quality of train services. But there's also part of the problems who are inherent to the fact of moving steel boxes safely on thousands of km, without endangering the workers either.

[โ€“] [email protected] 4 points 9 months ago

I was once running to the station in sevilla to get my train. I arrived 40 minutes late. The train departed right after I boarded.

Much love to the renfe, they waited for me :3

[โ€“] [email protected] 4 points 9 months ago* (last edited 9 months ago) (1 children)

People steal the copper wires everywhere.

I know someone that works in the rail industry with building and maintenance.

It's apparently very important to electrify the wire as soon as you are done with whatever you were doing. Otherwise someone will know that it's not electrified and they will steal it. And the company/state will lose quite a lot of money in raw materials (the overhead wires are expensive as fuck), delays and further work.

Edit: This isn't in some third world country or anything either. This is in a rich first world country that's in the top 10 in terms of HDI and at least top 20 of pretty much every other positive index.

[โ€“] [email protected] 0 points 9 months ago (2 children)

Why not wait for the thieves to start working and then electrify ๐Ÿคท๐Ÿผโ€โ™‚๏ธ

[โ€“] [email protected] 1 points 9 months ago

Because you would have to create some kind of surveillance team to find the thieves and it's generally unethical to kill people. The electricity in those wires won't just hurt, they will kill someone for just getting slightly too close.

[โ€“] [email protected] 1 points 9 months ago

Hey dude, my dad is working for the train system. Do you want to be the one cleaning human being parts? Not them.