this post was submitted on 11 Nov 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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[–] [email protected] 17 points 4 days ago (2 children)

Renewable energy is cheaper that fossil fuel energy but it doesn't make wealthy political donors in the west rich. China realizes that the largest part of the cost in everything we buy is the cost of energy. Cheaper energy means cheaper products.

[–] [email protected] 4 points 4 days ago (1 children)

Part of it that once you build a fossil fuel power plant, that power plant is now a guaranteed fossil fuel customer for the indefinite future. With solar there's no long term guaranteed profits like this. You can't commodify the sun's rays or wind.

[–] [email protected] 5 points 4 days ago* (last edited 4 days ago)

The benefit mostly accrues to the people using the electricity solar and wind generate. If you're making decisions for a society, instead of on behalf of rentiers who can donate, there are strong reasons to choose it.

[–] HobbitFoot 3 points 4 days ago

Chinese provincial governments also spent a lot of money building out photovoltaic production capacity as part of their way to meet their GDP goals. With the property market crash still working its way through the Chinese economy, China needs to sell solar panels to keep its market afloat.

Not that it is a bad thing that China has a financial incentive to make more solar panels, just noting that there are more direct economic reasons for China to go all renewables.