this post was submitted on 09 Oct 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.

Recommended actions to cut greenhouse gas emissions in the near future:

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Booming power demand is slowing climate progress for US utilities | Sierra Club analysis finds that U.S. utilities are planning a huge expansion of fossil gas-plants (www.canarymedia.com)
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[โ€“] angeredkitten@slrpnk.net 2 points 4 weeks ago (1 children)

I think Frog and silence are right. The amount of time, effort, and money that is required to set up nuclear plants at this point in time has far passed the equivalent in solar or wind projects. Add the fact that the sooner any project is finished, the less CO2 and CH4 is potentially released from nearby coal and gas plants; and since we're already in passing up goals for global warming, the earlier the better.

[โ€“] Know_not_Scotty_does@lemmy.world 1 points 4 weeks ago* (last edited 4 weeks ago)

I diagree, at current tech/time energy storage is the problem with peaky production methods like wong and solar.

You need capacity and quick spinup capacity for when demand occurs off peak production. Nuclear is the only green option with current tech for large scale. Fuel cells would be ideal when powered with electrolyzed h2 created by excess solar generation capacity but the tech isn't there yet and we need something now.

Thermal energy storage and pumped hydro are both viable but spatially problimatic or expensive in the long term. IMO, micro grids with local solar as the source are where we should be going but local storage is an issue even where sun is abundant.