this post was submitted on 26 Apr 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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Rivers are the West’s largest source of clean energy. What happens when drought strikes? (grist.org)
submitted 6 months ago by jeffw@lemmy.world to c/climate
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[–] Cagi@lemmy.ca 1 points 6 months ago* (last edited 6 months ago)

California power is awesome. Until recently, it was almost all nuclear. Those reactors take 6 hours to spin up and wind down. As demand went up for the day, they'd supplement their systems by buying power from BC. As the demand went down at night faster than the nuclear could wind down, they would pay BC to take their excess. You need to use you excess load or you blow up your grid. So BC was making money providing AND taking power at different points throughout the day.

Now, thanks largely to solar, California is generating so much power they have to pay people to take the excess during peak hours. Such an incredibly fast transformation. They still buy a bit at night, but California is quickly freeing itself from dependence on other systems.

So while they still import a bit of Hydro power, they'll be fully autonomously renewable really soon.