this post was submitted on 24 Feb 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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Spain bans short-haul flights where you can take a train (www.euronews.com)
submitted 9 months ago by [email protected] to c/[email protected]
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[–] [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.

[–] [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.

[–] 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)