this post was submitted on 30 Mar 2026
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Climate

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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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This news article is about a preprint, which means that the study wasn't peer-reviewed. It has a number of serious problems

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[–] panda_abyss@lemmy.ca 36 points 3 weeks ago* (last edited 3 weeks ago) (3 children)

This study is crap.

No statistical significance, control groups, numbers, or models. Just rolling average temperature vs temperature.

They don’t say how they filter out trends or seasonality. They don’t look at switch point models or do difference in difference. And it’s a non reviewed preprint.

This research needs an actual statistician to use their data and fix it, because as is, this is not worth seriously discussing.

Edit: okay downvotes. I’m not saying there isn’t something here, I’m saying this study does nothing to support the hypothesis seriously.

We have data picking and choosing to throw out data, we have no statistical rigour, and we have no comparison against other rural land transformation activities.

We already know about urban heat islands, is this just that? That’s an important question when trying to say data center use is the issue.

It probably is an issue, the chart is compelling, but without better work none of this is actionable.

Dude, it's just a single downvote. It wasn't even made by anyone who bothered to make their own comment in the thread.

This study itself is bad, but it arguably promotes better studies to come out and nobody is doubting that AI data centers are just huge sources of heat radiation and energy consumption. The study you want takes time, effort, and will undoubtedly receive pushback . At the very least, it gave an excuse for CNN to talk about the issue.

[–] Zombie@feddit.uk 5 points 3 weeks ago

Complaining about downvotes? That's a downvotable offense.

[–] ryannathans@aussie.zone 2 points 3 weeks ago (1 children)
[–] panda_abyss@lemmy.ca 14 points 3 weeks ago (1 children)
[–] ryannathans@aussie.zone 7 points 3 weeks ago (1 children)

That.. Is consistent

I wonder if there were trees or shade something in the before and direct sun in the after

[–] panda_abyss@lemmy.ca 6 points 3 weeks ago

And that’s why I want to see someone else take their data and do this justice

[–] RicoBerto@piefed.blahaj.zone 22 points 3 weeks ago

16 is so much!

[–] Asafum@lemmy.world 11 points 3 weeks ago (2 children)

"I hear you, you're concerned about climate change, I get it. So how about more heat!"

...ughhh

Suddenly the plot of the science fiction movie The Arrival doesn't seem so fictional any more.

[–] SaveTheTuaHawk@lemmy.ca 2 points 3 weeks ago

The effect here is not the heat, it's the utter waste of energy to generate that heat.

[–] FudgyMcTubbs@lemmy.world 4 points 3 weeks ago

What could go wrong?

[–] GandalfDG@beehaw.org 3 points 3 weeks ago

This is not true, datacenters are bad, but this is not why. Here's a good post re. this "study"

Data centers' heat exhaust is not raising the land temperature around where they're built

16 degrees ?!?!?!?!?! Holy shit