this post was submitted on 08 May 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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More and faster: Electricity from clean sources reaches 30% of global total (apnews.com)
submitted 6 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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Scientists say emissions from burning fuels like coal must ramp steeply down to protect Earth’s climate, yet there was an increase in electricity made from burning fossil fuels. China, India, Vietnam and Mexico were responsible for nearly all of the rise.

The report said some countries burned coal to make up for the loss of hydroelectric power they experienced when drought caused their reservoirs to dry up. This is an example of a vicious cycle — when climate change prompts the use of more of the substances that cause climate change in the first place.

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[–] Ooops@kbin.social 3 points 6 months ago* (last edited 6 months ago)

That's an interesting concept but the base assuptions are fundamentally wrong, because this is not how the electricity market or the grid work.

There is no classical supply and demand here. There has to always be the amount produced as is used up. More supply than demand and the grid breaks down, more demand than supply and the same happens.

When you add cheaper renewable electricity to an existing system, there is no effect of higher supply reducing the price thus creating more demand like in a classical market. The opposite is true. The base price is usually linked to the most expensive producer via some merit order system (because there must always be enough capacity to fullfill the demand in real time), so the price stays the same. And on top of the produced electricity we now also need to pay some producers to stop production. That cost is also added via some grid fee. So burning fossil fuels is indeed the worst thing to make money here. Instead you can get a lot of money with producing renewable energy on one hand (as you get a high prize for cheap production), or by not producing fossil fuel energy (basically getting paid for not shutting down you power plant in case it's needed while not actually burning fuels most of the time).

Which in the end means you are indeed replacing fossil fuels with renewables. Prices will only drop once you build so much renewables and short term storage to completely eliminate the need for fossil fuel power plants to be kept for the rare moment you need them. So there is no effect of lower prices artificially creating higher demand.