this post was submitted on 22 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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One issue will decide Arizona’s future. Nobody’s campaigning on it. (grist.org)
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[–] delgato 3 points 4 weeks ago

Having lived in Arizona for a few years and worked in the renewable energy industry there, I always found it surprising no long term planning on anyone’s part is done when designing a water-intensive project especially in the big cities. The problem is that water will still always flow through Phoenix, whether it’s the Colorado River or even more canal projects from other states, and rural folks will always drill deeper for water. It’s not a problem that there isn’t water it’s just the accessibility of the groundwater and how saline it is. The previous governor, Ducey, even suggested the state invest in desalination tech. The surface manifestations (ie earth fissures) of GW withdrawal are obvious but humans find a way to engineer around it or in some cases of Arizona desert they just don’t build there.