this post was submitted on 14 Dec 2023
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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.

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[–] cerement@slrpnk.net 2 points 11 months ago (2 children)

didn’t the Saudis buy it all before it even reached California …

[–] hotelbravo722@slrpnk.net 7 points 11 months ago

They have a lot of farm land that they buy alfalfa from but water rights are a bit different. Water rights are based on the "doctrine of prior appropriation" which means the water from the river goes to the body that is able to claim first "beneficial" use for that water, beneficial as defined as economically beneficial. Los Angeles and many Imperial Valley farmers primarily used that to build massive water infrastructure projects to divert massive amounts of water from the Colorado for projected growth. Those rights to that water are locked, however because of the crises on the Colorado river system the entire Colorado River compact is coming into question which has the doctrine of prior appropriation as a foundation to the water legal system in the west.

Just for some additional context the Colorado River Compact is essentially the West's version of the constitution. Its a water treaty governing commerce and political power in the West. Keep in mind the American West is a desert and the only real thing of true value in a desert is freshwater. There is an old west saying "whiskeys for drinking, waters for fighting over", and people did fight over water out here.

[–] silence7@slrpnk.net 2 points 11 months ago (1 children)

They've definitely done large water buys, but California has a lot of specific water rights under the first-one-to-use-it-has-priority rules. That's why there's a huge amount of alfalfa grown in the Imperial Valley

[–] wolfshadowheart@slrpnk.net 3 points 11 months ago

Not to mention grandfathered reserves. Redlands University has a contract with the city that it gets an allotted amount of water per year, so long as they use that much. So they do things like run the sprinklers all the time to use as much water as possible to keep their yearly allotment high in case of an influx of students.

If this fairly small college has this deal, I can only imagine what other schools and businesses have similar ones.