this post was submitted on 25 Mar 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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This is how big one tonne of CO2 is (slrpnk.net)
submitted 7 months ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 7 months ago* (last edited 7 months ago) (2 children)

I guess I'm confused on the definition of a "tonne" of CO2. Am I to believe that if that cube was completely full of CO2 that volume of CO2 would weigh 1000kg?

Nevermind, just looked it up. It's actually a measure of volume, just 1000 cubic meters, which makes perfect sense.

Edit: it was actually the first one, although a "tonne" as a measure of volume does exist.

[–] [email protected] 2 points 7 months ago (1 children)

Gas doesn't seem heavy until you handle gas canisters full and empty.

[–] [email protected] 1 points 7 months ago (1 children)

I mean, those are much higher than 1 atmosphere though.

[–] [email protected] 3 points 7 months ago

Sure. Don't often store more than 7,000 L STP and that's a 2m cube.

[–] [email protected] 7 points 7 months ago (1 children)

You had it right the first time, 1 tonne (1000 kg) of CO2 at standard temperature and pressure would have a volume equivalent to that cube.