this post was submitted on 29 Nov 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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It’s not just electricity — Bitcoin mines burn through a lot of water, too (www.theverge.com)
submitted 11 months ago by sodalite@slrpnk.net to c/climate@slrpnk.net
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[–] kbal@fedia.io 13 points 11 months ago (1 children)

https://digiconomist.net/bitcoin-energy-consumption

Okay, but it's not as if electricity consumption isn't more than enough by itself to prove bitcoin a worse than useless idea.

[–] JackGreenEarth@lemm.ee -5 points 11 months ago (3 children)

It's fine if it's renewable electricity

[–] JohnDClay@sh.itjust.works 5 points 11 months ago (1 children)

That energy could still be going somewhere else or used to make hydrogen. Plus making the cards is pretty material and energy intensive.

[–] JackGreenEarth@lemm.ee -3 points 11 months ago (1 children)

Why is making hydrogen useful? The universe is 99% hydrogen.

[–] JohnDClay@sh.itjust.works 6 points 11 months ago* (last edited 11 months ago)

The atmosphere of earth is 0.000055% hydrogen, so it's not common here. But it's useful because it's an easily transportable energy storage medium.

[–] Starglasses@lemmy.blahaj.zone 1 points 11 months ago

What doea bitcoin do for the world?

[–] sour@kbin.social 0 points 11 months ago* (last edited 11 months ago)

is use by cryptobro