this post was submitted on 22 Mar 2024
92 points (95.1% liked)

Climate - truthful information about climate, related activism and politics.

5243 readers
290 users here now

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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

founded 1 year ago
MODERATORS
 

Cross-posted from: https://feddit.de/post/10267315

Initial research shows that AI has a significant water footprint. It uses water both for cooling the servers that power its computations and for producing the energy it consumes. As AI becomes more integrated into our societies, its water footprint will inevitably grow.

The growth of ChatGPT and similar AI models has been hailed as “the new Google.” But while a single Google search requires half a millilitre of water in energy, ChatGPT consumes 500 millilitres of water for every five to 50 prompts.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] -5 points 8 months ago* (last edited 8 months ago) (3 children)

They're evaporating away a lot more water than they return.

Ok, but the point is once water evaporates it doesn't stay evaporated forever. It condenses and turns into rain or snow.
Where exactly do people think this water is going when it evaporates? Space?

[–] [email protected] 4 points 7 months ago

No. People are tracking useable water supplies. If it gets out of that, we don't care what happens to it.

We're draining aquifers to give people and industry drinkable, useable water (no matter how we feel about that). The water "still existing" somewhere else is an entirely pedantic point, and a huge waste of everyone's time.

[–] [email protected] 3 points 8 months ago (1 children)

I think it goes out of the cycle somewhat, kinda like all that is held up

If 100L rain down a day, and you use 10L for cooling then you will have still have 100L flowing but now only 90L for actual use. And then datacenters take up a significant amount of the total then you have a lot less to use elsewhere such as watering fields for example.

[–] [email protected] 2 points 7 months ago* (last edited 7 months ago)

Where I live we have this huge river around our city that provides most of the province with freshwater (along with all of the rivers that feed into it, but the population concentrates around that one big river)

That one big river is also a place for ships to go through, and an ecosystem (despite all of the disruption).

More water in use by all kinds of facilities still manages to lower the level of the river significantly, to the point where there have been worries raised about the ecosystem and where shipping capacity was reduced.

[–] [email protected] 19 points 8 months ago (1 children)

"why does a decline in freshwater supply matter when it all ends up in the sea anyway?"