this post was submitted on 31 Jul 2023
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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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Colorado River losing vast amounts of water due to warming climate, study finds (www.latimes.com)
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The paper is here

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[–] archwizard@slrpnk.net 1 points 1 year ago* (last edited 1 year ago)

Note its not just climate thats causing the water shortage. The article even mentions that a bunch of that water is being used for livestock feed like alfalfa. It takes ~620 gallons of water to make a 150g hamburger and ~859 gallons for a gallon of milk (1). And 56 percent of the water of the colorado river is used for growing livestock feed (2).

Climate change is important to have in the conversation about our rivers drying up, but we can't forget about the elephant (or cow) in the room.

1: https://www.sciencedirect.com/science/article/abs/pii/S1470160X11004110?via%3Dihub

2: https://www.nytimes.com/interactive/2023/05/22/climate/colorado-river-water.html