this post was submitted on 28 Jul 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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[–] sabreW4K3@lazysoci.al 12 points 3 months ago (1 children)

Doesn't Texas have sun, wind and coastline? Invest in renewables and then power desalination plants.

[–] lnxtx@feddit.nl 7 points 3 months ago (1 children)

Texas is f-ing huge.
I think desalination plants don't scale well.

[–] Tiresia@slrpnk.net 5 points 3 months ago (2 children)

Why do you think it doesn't scale well? The ocean isn't going to run out of water, and Texas being huge only means it's easier to find space for all the solar power you would need.

I'm also curious about what you think the alternative is.

[–] Jumi@lemmy.world 3 points 3 months ago

Doesn't Texas have a lot of oil? Just let them ~~eat cake~~ drink oil.

[–] huquad@lemmy.ml 3 points 3 months ago (1 children)

I don't know the solution as I haven't done the math. But the alternative is piping water from another location. You'd have to weigh the fixed cost infrastructure and electrical power costs against one another.

[–] phoenixz@lemmy.ca 3 points 3 months ago (1 children)

Until that place runs dry too. Las Vegas knows what I'm talking about.

It might ne time for the US to start looking into sustainable designs for their cities, which will be fun because most of US city.designs are just plain unsustainable. They don't have to, of course, but you know, limits are being reached and when whatever resources are gone, they are gone.

Good luck with that

[–] huquad@lemmy.ml 1 points 3 months ago (1 children)

I think this speaks more to water reusability than where you get the excess. If you can recycle 90% of the water, then you're water demand will be 10x less and likely easily sustained by rainfall.

Again, it's a cost analysis between reusing water, i.e. filtration, and desalination. Without numbers, it's only speculation.

[–] phoenixz@lemmy.ca 1 points 3 months ago

Vegas has been emptying it's aquifers in less than a hundred years. It took millions to fill them.

Meanwhile, here we have a new golf course, in the middle of the desert! Cool, right?

Vegas is fucked, pretty much, that is no speculation. Other cities will need to make drastic changes in the upcoming decades, and I've seen shit all done because noone cares until it blows up in their faces.