this post was submitted on 19 May 2026
527 points (99.1% liked)

Technology

84783 readers
4842 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related news or articles.
  3. Be excellent to each other!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
  9. Check for duplicates before posting, duplicates may be removed
  10. Accounts 7 days and younger will have their posts automatically removed.

Approved Bots


founded 2 years ago
MODERATORS
top 50 comments
sorted by: hot top controversial new old
[–] FireWire400@lemmy.world 7 points 2 hours ago

It's funny how the last decade or so we were always told to save water and ditch the car, you know, be as environmentally friendly as possible only for big companies to come along and basically do the opposite; again and again.

The world is going to shit and everyone knows it, but money talks I guess... I can't fucking take it anymore.

[–] nothingcorporate@lemmy.today 23 points 5 hours ago (1 children)

Who the fuck builds a data center in Phoenix?! Was the surface of the sun not available?

[–] Eric@lemmy.blahaj.zone 2 points 3 hours ago

They don't give a fuck about us. Phoenix likely gave tax breaks, energy deals etc

[–] NotASharkInAManSuit@lemmy.world 12 points 4 hours ago

They raised the surrounding temperature in fucking Phoenix Arizona? A place already so hot that it can kill you within hours. we’re so fucked.

[–] Etterra@discuss.online 8 points 6 hours ago

Clearly those data centers aren't using enough fire. We should donate more fire to them.

[–] SocialMediaRefugee@lemmy.world 2 points 4 hours ago

On the plus side when it is 120F there you won't notice.

[–] shortwavesurfer@lemmy.zip 6 points 7 hours ago* (last edited 7 hours ago) (1 children)

In that case, could you put them in Minneapolis and run them in like January?

I used to live there, and during the winters it can get brutal. During one of those polar vortexes is the first time I ever saw an air temperature of negative 50 with a wind chill of negative 70.

[–] ChillPenguin@lemmy.world 2 points 3 hours ago

Nah we dont want them either. I don't want my electricity prices to skyrocket more than they already have.

[–] 404found@lemmy.zip 2 points 5 hours ago

How close to a data center do you have to live to experience the 'living by power lines' health effects?

[–] Imgonnatrythis@sh.itjust.works 32 points 10 hours ago (3 children)

No one in Phoenix will notice. If you've stuck around in Phoenix this long you've managed to stop caring about temperatures not fit for human life

[–] tal@lemmy.today 13 points 6 hours ago* (last edited 6 hours ago)

https://www.youtube.com/watch?v=4PYt0SDnrBE

Bobby: A hundred and eleven degrees? Phoenix can't really be that hot, can it?

The family exits the car

Bobby: Oh my God! It's like standing on the sun!

Peggy: This city should not exist. It is a monument to man's arrogance!

EDIT: (For non-Americans, 111°F is about 44°C.)

[–] Rooster326@programming.dev 19 points 10 hours ago (3 children)

But you will notice the lack of water...

[–] halcyoncmdr@piefed.social 14 points 8 hours ago (3 children)

Eventually. Maybe sooner than we think.

Phoenix has been insisting there's 100+ years of water under the mountains, etc. for decades. But every time there's been any sort of effort to verify, it gets killed either by the government or courts on various ways.

Phoenix also loves to concrete over absolutely every open area, removing natural heat sinks into the ground. It's one of the big reasons the Phoenix area is as hot as it is and maintains that heat overnight instead of actually cooling a bit like other cities in the Sonoran Desert region.

[–] HeyThisIsntTheYMCA@lemmy.world 2 points 3 hours ago (1 children)

I really don't get that. Every desert I've lived in, as soon as the sun went down the temperature dropped like ten, maybe twenty frankfurters. Phoenix just stays hot and that definitely seems engineered

[–] halcyoncmdr@piefed.social 4 points 3 hours ago

Yeah that's what deserts do.

But Phoenix isn't a desert anymore, it's a big concrete pad that works just like any rock you put into a hot space... it absorbs heat through the day then radiates it back out once the sun is down. They replaced the desert but didn't leave holes for it to still work the same.

[–] SocialMediaRefugee@lemmy.world 4 points 4 hours ago

Nothing better than a concrete/asphalt desert in the middle of the summer with zero shade.

[–] Horsey@lemmy.world 8 points 7 hours ago* (last edited 1 hour ago) (1 children)

Tucson here: I thought I’d like to move to Phoenix for the big city convinces. After staying overnight at a friend’s house, I can solidly say that the difference in the summer is insane. It’s a whole new level of heat. It’s doable, but shit, it’s not a joke if you’re unprepared.

The heat island effect is not an exaggeration. The lows in Phoenix in the summer are higher than the highs in even warm climate cities.

[–] halcyoncmdr@piefed.social 5 points 5 hours ago

Yeah Tucson has a lot of blank spaces spread throughout the city when you actually get down to the street level. Lots of open areas for the heat to be absorbed by the earth rather than just getting trapped in concrete and asphalt everywhere.

[–] anon_8675309@lemmy.world 1 points 7 hours ago

Already a lack of thar.

[–] Imgonnatrythis@sh.itjust.works 3 points 9 hours ago (1 children)

Maybe. I assume they've all evolved into lizard-people by now.

[–] merpthebirb@lemmy.blahaj.zone 3 points 10 hours ago

I stay here because I have family here. I hate the weather with a passion. Let’s not make it even worse.

[–] pelespirit@sh.itjust.works 101 points 15 hours ago* (last edited 15 hours ago) (2 children)

The republicans are also gutting our national parks and selling them off.

Big cuts and sweeping changes have destabilized the National Park Service and its core missions.

National parks facing ‘nightmare’ under Trump, warns ex-director of service

Jonathan Jarvis claimed the agency is now in the hands of a “bunch of ideologues” who would have no issue watching it “go down in flames” – and see parks from Yellowstone to Yosemite as potential “cash cows”, ripe for privatization.

[–] arrow74@lemmy.zip 39 points 12 hours ago (1 children)

I'll never forgive NPS leadership, the pace at which they moved to follow illegal orders was astounding. HR moved faster than ever before to hire people when they are the ones that know best how to slow things down.

Not a single person in a position of power pushed back in anyway way. I'm not even talking about defying orders here. They didn't even use existing policy to slow things down. There are mechanisms and choices that could have been made, but they didn't do it.

[–] pelespirit@sh.itjust.works 9 points 12 hours ago (1 children)

Not a single person in a position of power

I agree with you, but I think it's important to point out that the people in power from his first term and now, are trump sychophants or direct placements by republicans. They didn't do anything because they didn't want to.

[–] arrow74@lemmy.zip 16 points 12 hours ago* (last edited 12 hours ago)

Not true, he appointed the Secretary (who also appoints the Director) yes but truthfully they do basically none of the work. The non-political civilian service employees do the work. Think regional directors (not politically appointed), heads of regional HR, and park superintendents.

These people had the ability to slow things down, and they chose not to. At best a few people resigned and interim leadership stepped in to carry out orders. These interim leaders were already NPS employees various Chiefs and Deputies of different branches (regional and parks).

These are people that have been in the park service 20+ years. Hell I saw a few of them break down and cry, and yet they kept the agendas rolling.

Policy alone lets you take 3 sick days in a row with no doctors note. At least do that much to slow it down

[–] wonderingwanderer@sopuli.xyz 15 points 12 hours ago

I hope whoever is in office next is absolutely cutthroat about demagafication and goes after every company and individual profiting off of this with the full fury of RICO and anti-trust laws to reclaim America's national parks.

[–] Hadriscus@jlai.lu 13 points 14 hours ago (3 children)

When is Trump going to be nuked from orbit ? Who's going to push the button ?

[–] HeyThisIsntTheYMCA@lemmy.world 1 points 3 hours ago

How much do I have to pay? And how many other people die at random? And the trolley lever, how is that set up? I want this moral quandry spelled out clearly before I press the button

[–] Manjushri@piefed.social 6 points 11 hours ago

Who’s going to push the button ?

I suspect there will be a line.

[–] Lost_My_Mind@lemmy.world 10 points 13 hours ago

GIVE ME 1 SECOND WITH THE BUTTON!!! I WILL PUSH IT!!! JUST GIVE ME ACCESS!!!!

[–] 9point6@lemmy.world 21 points 15 hours ago* (last edited 15 hours ago) (22 children)

I gotta wonder, given the power bill of these sites, why they're letting so much heat energy out into the atmosphere

Surely at least some of that heat could be tuned back into electricity. Yeah it's not gonna pay all the bills, but surely at a certain level of scale, there's gotta be some benefit in it just from an economical standpoint, let alone the ecological benefits of not accelerating climate change

[–] stickyprimer@lemmy.world 9 points 11 hours ago

Turning waste heat into electricity is a very old goal but it really does come up against problems with entropy fast. Basically if you have a LOT of heat in one place you can boil a great deal of water and make electricity. If you have a lot of heat spread over a wide area there’s no good way to “herd” it together enough to boil water in appreciable amounts.

[–] dhork@lemmy.world 44 points 15 hours ago

For the same reason why they let so much water evaporate. They could convert some of that heat back into electricity, just like they could run closed-loop cooking systems, but it would cost more money than it would save. There's no financial incentive to do so....

.... Until regulators start insisting! These datacenter folks have gobs of money, we shouldn't be shy about requiring them to not ruin the local environment.

It would be best to do it on a national level, otherwise these folks will just shift the development to someplace without the regulations.

[–] tal@lemmy.today 13 points 15 hours ago* (last edited 15 hours ago) (3 children)

why they’re letting so much heat energy out into the atmosphere

Surely at least some of that heat could be tuned back into electricity.

To harness useful energy from heat, you have to let heat flow from hotter areas to colder areas, to permit entropy to increase.

https://en.wikipedia.org/wiki/Entropy

Entropy is central to the second law of thermodynamics, which states that the entropy of an isolated system left to spontaneous evolution cannot decrease with time. As a result, isolated systems evolve toward thermodynamic equilibrium, where the entropy is highest. "High" entropy means that energy is more disordered or dispersed, while "low" entropy means that energy is more ordered or concentrated.

They might be able to harness energy from the flow from warmer to cooler areas, but whether or not they do that, at the end of the day, they have to let the heat go, just like a power plant that uses water-evaporation-assisted cooling. If they're near the ocean, they can maybe stick it into the water instead of the air, and maybe to some degree, you can stick heat into groundwater. But they can't just take a unit of heat and convert it into a unit of useful work and not have that unit of waste heat.

You can, in areas that have a use for heat, make use of that waste heat. For example, district heating can make use of the waste heat from a power plant


you pipe steam or something from the power plant that you want to be cooler to homes that you want to be warmer.

District heating (also known as heat networks) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating and water heating. The heat is often obtained from a cogeneration plant burning fossil fuels or biomass, but heat-only boiler stations, geothermal heating, heat pumps and central solar heating are also used, as well as heat waste from factories and nuclear power electricity generation. District heating plants can provide higher efficiencies and better pollution control than localized boilers. According to some research, district heating with combined heat and power (CHPDH) is the cheapest method of cutting carbon emissions, and has one of the lowest carbon footprints of all fossil generation plants.

If you live somewhere where that works, it's basically "free" heating from an energy standpoint, which is cool. Much of the US isn't well-suited to residential district heating, because we tend to have residences in low-density suburban areas that are pretty spread out and where it's a pain to transport heat around, but we do have some district heating in city cores. Manhattan, which is one area where we do have high density, famously uses steam heating.

Today, Con Edison operates the largest commercial steam system in the world (larger than the next nine combined).[4] The organization within Con Edison responsible for the system's operation, known as Steam Operations, provides steam service to over 1,700 commercial and residential customers in Manhattan from Battery Park to 96th Street uptown on the west side, and 89th Street on the east side of Manhattan. Roughly 27 billion pounds (12,000,000 t) of steam flow through the system every year.

For that to work, you have to actually have some use for that heating (and you probably only want heating some of the year, unless you're up in the polar regions or on a mountain or something).

You can also use waste heat to drive industrial processes that require heat, but waste heat from a datacenter isn't super-hot compared to, say, that from a power plant, so I don't know how interesting that necessarily is. Lots of chemical processes that might require elevating something to a much higher temperature, but a datacenter


at least using current computing hardware


normally tries to keep temperatures from getting to something like the boiling point of water.

Some greenhouses will also use waste heat (in the case of power plants doing cogeneration, some of the waste carbon dioxide as well) to help boost plant growth.

[–] grue@lemmy.world 4 points 8 hours ago (1 children)

and maybe to some degree, you can stick heat into groundwater

Do it long enough, and even that would become a problem. There are parts of the London Underground that are uncomfortably hot to ride because it's existed so long they've managed to heat-soak the ground around the tunnels.

[–] tal@lemmy.today 2 points 6 hours ago

That's a neat tidbit.

https://en.wikipedia.org/wiki/London_Underground_cooling

The heat in the tunnels is largely generated by the trains, with a small amount coming from station equipment and passengers. Around 79% is absorbed by the tunnels' walls, 10% is removed by ventilation, and the other 11% remains in the tunnels.[3]

Temperatures on the Underground have slowly increased as the clay around the tunnels has warmed up; in the early days of the Underground it was advertised as a place to keep cool on hot days. However, over time the temperature has slowly risen as the heat sink formed by the clay has reached its thermal capacity. When the tunnels were built the clay temperature was around 14 °C (57 °F); this has now risen to 19–26 °C (66–79 °F) and air temperatures in the tunnels now reach as high as 30 °C (86 °F).[3][4][5]

[–] Axolotl_cpp@feddit.it 6 points 13 hours ago* (last edited 13 hours ago)

Fun fact: in switzerland some companies like Infomaniak do give excess heat to the near houses, it's such a cool thing

load more comments (1 replies)
load more comments (19 replies)
[–] gressen@lemmy.zip 12 points 15 hours ago (2 children)
load more comments (2 replies)
load more comments
view more: next ›