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Hope


cross-posted from: slrpnk.net/post/28796937

Yet every time we open Pandora's box there's Andrew Tate or his like.




This Hydrogen has no Color


in reply to hanno

Produced and consumed in Morocco, replaces another energy reclamation method, no mention of quickly approaching peak phosphorus.



Americans can’t afford their cars any more and Wall Street is worried


cross-posted from: lemmy.world/post/37630345

If only we had invented and built some sort of alternative mode of collective transportation. Maybe it could be in tunnels and ride on metallic rails. It would serve many people and make periodic stops to the same locations instead of the highway clusterf- we have today. Sad that we don't, but a man can dream though. A man can dream though. A man can dream.

in reply to silence7

I am dubious that business people and techbros give a shit enough to remain rational about this vs. just sell the vibe of caring.

Actually I am very sure they don't.

Caring with too big of an ego to listen doesn't count as caring.

This strategy will end up catastrophically failing, no matter, techbros and business people will have made a killing in profits while delaying actual action on climate change.

But experts have raised a number of concerns about various approaches to BECCS, stressing they may inflate the climate benefits of the projects, conflate prevented emissions with carbon removal, and extend the life of facilities that pollute in other ways. It could also create greater financial incentives to log forests or convert them to agricultural land.

When greenhouse-gas sources and sinks are properly tallied across all the fields, forests, and factories involved, it’s highly difficult to achieve negative emissions with many approaches to BECCS, says Tim Searchinger, a senior research scholar at Princeton University. That undermines the logic of dedicating more of the world’s limited land, crops, and woods to such projects, he argues.

“I call it a ‘BECCS and switch,’” he says, adding later: “It’s folly at some level.”

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Chinese freighter halves EU delivery time on maiden Arctic voyage to UK


[quote]The Istanbul Bridge’s maiden voyage, originally expected to take 18 days, was delayed by two days due to a storm off the coast of Norway but the ship still reached Europe earlier than the 40 to 50 days it takes freighters going through the Suez Can
The Istanbul Bridge's maiden voyage, originally expected to take 18 days, was delayed by two days due to a storm off the coast of Norway but the ship still reached Europe earlier than the 40 to 50 days it takes freighters going through the Suez Canal or around the Cape of Good Hope.

The new Northern Sea Route, running entirely through Arctic waters and within Russia's exclusive economic zone, can now be navigated by ships due to global warming.


in reply to dumnezero

Yeah. Two years ago, mainstream studies were estimating 3°C by 2100 - and it's well documented at this point how climate scientists deliberately underestimate predicted rates of warning to avoid being seen as alarmist.

At this point I agree with 2°C by 2040 and bet on 3°C by 2050. 5°C by 2100, 10°C if some of the worst case feedback loops exist.

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Brazil’s first private Amazon road paves new trade route to China as pro-deforestation mindset prevails


cross-posted from: lemmy.sdf.org/post/44101271

Archived
  • Brazil’s government has signed a 30-year contract to privatize a section of the BR-364 highway, a key part of its plan to create an overland corridor to Peru to streamline commodity exports to China.
  • Critics warn that expanding the highway into well-preserved rainforest risks repeating its history by attracting illegal loggers and land grabbers, a pattern that previously cleared vast areas for agriculture.

[...]

Fueled by soybean, corn and beef production, [the Brazilian state of] Rondônia is now one of Brazil’s leading agribusiness states, where a pro-deforestation mindset prevails, rooted in a population largely disconnected from the forest, rivers and traditional Amazonian culture. This view gained renewed momentum under Jair Bolsonaro, the far-right president from 2019-2022, who won all 52 of Rondônia’s municipalities in both the 2018 and 2022 elections.

Cutting across Rondônia, BR-364 has become a key route for moving grain, beef and minerals to ports on the Madeira River in Porto Velho. From there, commodities from Brazil’s central-west region are shipped downriver to foreign markets via the Atlantic Ocean.



The disasters we talk about shape our priorities and determine our preparedness


In December 1989, the United Nations declared Oct. 13 International Day for Disaster Risk Reduction. At the time, the aim was to make disaster-risk reduction part of everyday thinking worldwide.

Today, this mission is more urgent than ever as disasters strike more often and with greater force.

And although substantial progress has been made, there is still much to achieve in reducing disaster risks and their impacts.

One of the main culprits for overlooking certain disasters is the way we talk about them. We tend to focus more on the narratives surrounding rapid-onset events — wildfires, earthquakes, hurricanes — versus long-term crises like climate change.



Russia’s Arctic Sea route sells speed at the planet's expense, another new study finds


cross-posted from: lemmy.sdf.org/post/44071783

Archived

A recent study published in Nature Communications by Pengjun Zhao, Yunlin Li, Caixia Zhang and co-authors examines how the opening of Arctic shipping routes is set to reshape not just the global shipping traffic, but global carbon emissions. The research points to possible environmental advantages from shorter routes, but also reveals hidden risks that complicate the promise of this new era in maritime trade.

Here is the study published in Nature

Key points:

  • A Shorter Route Doesn’t Guarantee a Cleaner Route: The Arctic shipping route can cut some journeys by up to 40%, particularly between Northern Europe and Northeast Asia, but efficiency gains may be offset by induced shipping demand and shifts in global fleet patterns.
  • Arctic Emissions Could Surge: Maritime emissions within the Arctic could rise sharply, from 0.22% to as much as 2.72% of global shipping emissions, creating a new climate hotspot.
  • Heavy Emitters Set to Dominate: Oil, gas, and chemical tankers are expected to make up the bulk of NSR traffic, amplifying the carbon footprint of rerouted shipping flows.
  • Policy Matters More Than Distance Saved: The study finds that relying on current IMO targets or Green Corridors only modestly reduces emissions. Only a robust Net-Zero strategy with cleaner fuels, caps, and regional implementation could fully offset added Arctic emissions.
  • Risks of Carbon Inequality: Route shifts may concentrate emissions in specific areas while reducing them elsewhere, creating localized “hot spots” of pollution exposure.
  • Technological & Environmental Constraints: Short-term fuel savings may be undermined by Arctic-specific challenges such as extreme weather, heavy fuel oils, spill risks, inadequate infrastructure, and regulatory gaps.

The findings in the study do support claims that the Northern Sea Route is a shorter and cheaper alternative to existing shipping routes. However, the study is only the latest to sound the alarm over the potential environmental and safety risks inherent to the route.

In recent weeks, the Bellona research group presented their findings from years of analysis into the dangers posed by the Northern Sea Route. You'll find a video on the linked site for some of the main findings.



Exposed: Uncontrolled biogas expansion funded by public purse


[quote]More than €37 billion in public money available and €28 billion of private investments committed – with added risks to climate and health A [url=https://eeb.org/library/biogas-policies-in-the-eu-levelling-up-or-locking-in/]new report[/url] from t
More than €37 billion in public money available and €28 billion of private investments committed – with added risks to climate and health

A new report from the Methane Matters coalition – a consortium of civil society organisations – finds that The EU has handed the biogas industry billions of euros of public money to expand, without ensuring adequate environmental controls.



‘We are witnessing a fire-sale of the world’s rainforests’ – global banks earn billions from deforestation


cross-posted from: lemmy.sdf.org/post/44051179

Archived
  • US banks earned the most globally, making $5.4 billion, with Vanguard, JPMorgan Chase and BlackRock topping the list. In the US, the SEC’s climate-related financial disclosure rules remain suspended, and attempts to pass the FOREST Act, an import regulation like the UK’s law banning imports grown on illegally deforested land, have stalled.
  • EU banks generated $3.5 billion, led by BNP Paribas and Rabobank, while UK banks made $1.2 billion, with HSBC, aberdeen Group and Schroders at the top. The EU’s flagship deforestation law, due to enter into application at the end of 2025 has already been delayed by 12-months [...] and remains at risk of additional delays.
  • Chinese financial institutions made $1.2 billion, almost entirely from credit-related deals and fees – despite the country’s green finance policy requiring banks to restrict lending for companies with ESG concerns. In China, Green Finance Guidelines introduced in 2022 could be utilised to outline how banks should identify, monitor, prevent and control their environmental, social and governance (ESG) risks. However, China remains the biggest international financier of companies that trade and produce goods linked to deforestation.
  • Together, banks in all other countries including Indonesia and Brazil earned $15.9 billion.
  • The UK passed a law in 2021 prohibiting the use of products linked to illegally deforested land, but it has yet to come into fully force. Once it does, the Treasury must conduct a review of the UK’s role in financing global deforestation.
in reply to Hotznplotzn

The world isn't getting better despite 'despite some conflicts and crisis'. The world is getting worse through design. The biggest obstacle right now is that most people still refuse to attack the satus quo. How can't it be obvious by now that our governments act AGAINST our interest? How can people still tell themselves that they do enough by voting?


Carbon credits are failing to help with climate change — here’s why


Offsets are tradable credits from projects that claim to reduce emissions, either by avoiding them or by removing carbon dioxide from the atmosphere. Businesses and countries trade these credits — each representing the equivalent of one tonne of CO2 — to ‘neutralize’ their own emissions.

Although conceptually appealing, this reliance on offsets has fatal flaws. In practice, it’s difficult to ensure that they represent real emissions reductions rather than ‘hot air’, with the claimed climate benefits existing only on paper. Equally challenging is ensuring that emission reductions are ‘additional’, meaning that they would not have occurred without the incentive provided by the sale of carbon credits. (...)

This results in more emissions, delays the phase-out of fossil fuels and diverts scarce resources to false solutions.


archive link

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in reply to solo

Uh yeah. Credits were invented to give the appearance of action and to keep people buying.
in reply to solo

If you need an explanation for why buying symbolic coins isn't helping, I have a bunch of symbolic coins to sell you.


in reply to schizoidman

Yeah, why use renewable energy when you can use a dirty finite resource that will almost certainly rise in price over their time horizon.

in reply to HaraldvonBlauzahn

27% of Volkswagens sales are electric. It is entirly possible to get the other 73% done in a decade. Especially given the growth of the sector.
in reply to MrMakabar

OK, to go into some more detail: The big car makers could actually make it if their management wants to. They have invested a bit into electrical technology, though by far not enough.

Then there are companies like Bosch which have developed electrical technology since a long time. Bosch is today one of the most important suppliers of eBike drive components.

But what is the far bigger problem for industrial policy are the car companies' suppliers, of which many are still focused on 100% combustion engines and the parts around them. They have no future. And unfortunately, they have a disproportionate economic share in entire regions.

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Demolition of Coal Power Plant Werne, Germany


While climate protection policy is subject of fierce political fights, mankind is quietly witnessing a technological revolution of a scale not seen since the invention of the steam engine in 1776: Electrical renewable power, namely wind and solar power, is now more competitive in costs than fossil power. As a consequence, fossil power plants become obsolete, and are being demolished - here and now.

The video shows the demolition of the 285 meter tall chimney of the coal power plant Werne in region Lippe of NRW.

To me, this view gives hope that our children have a future.

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in reply to ☆ Yσɠƚԋσʂ ☆

If America truly wants to bring manufacturing back, it’s not a policy tweak. It’s a complete reinvention. Politics, culture, education, and industrial strategy all have to change. That takes time, discipline, and national unity.


complete subjugation of an entire class of disposable people works too and they'll insist on doing it to themselves if you keep doing it to them for long enough.

as any historian if you want details. lol

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in reply to eldavi

While fascism is definitely going to be the solution here, it's worth noting that it will result in a lot of top talent fleeing the US. Meanwhile, the US has no hope of competing with China on raw labour power given it has a far smaller population. However, I'd argue the real competition is going to be around high tech and that's precisely where highly educated people who are already starting to flee would play the decisive role. China is already implementing mass automation solutions at scale today, and if US leadership expects to compete with that using slave labour, they're going to be in for a surprise.


AMDGPU crash when on high load, blackscreen and gpu fan go crazy.


cross-posted from: lemmy.ml/post/37817953

Hi all,
when I am using software with high gpu load(in the case AI model). It also happens with game. It just kinda happens after a random amount of with games(I can play for like 30 mins then crash or sometime not at all).

here is my journalctl log:

Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: amdgpu: Dumping IP State
Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: amdgpu: Dumping IP State Completed
Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: amdgpu: [drm] AMDGPU device coredump file has been created
Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: amdgpu: [drm] Check your /sys/class/drm/card1/device/devcoredump/data
Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: amdgpu: ring comp_1.1.1 timeout, signaled seq=618, emitted seq=620
Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: amdgpu:  Process python pid 4571 thread python pid 5777
Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: amdgpu: GPU reset begin!
Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: amdgpu: device lost from bus!
Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: [drm] device wedged, but recovered through reset
Oct 20 12:57:18 Linux kernel: amdgpu 0000:10:00.0: [drm] *ERROR* [CRTC:61:crtc-0] flip_done timed out

I tried to check the path /sys/class/drm/card1/device/devcoredump/data after reboot, but there isn't any thing(in fact, devcoredump folder dont even exist.

My specs:
Distro: Arch
Kernel: 6.17.3.arch2-1
Driver: Mesa 1:25.2.4-2
Gpu: rx 580
Cpu: r5 5500
PSU: EVGA 650 N1 650w
I am on latest version of my bios)

Edit: my

Is there anything I can do to diagnose the issue? Any help is appreciated. Thanks you!

Questa voce è stata modificata (3 giorni fa)
in reply to Kiuyn

Do you have a powerful/decent/not-too-old enough PSU?.
in reply to IceVAN

My PSU is one year old, 650w(EVGA 650 N1. The problem is there seem to be a lot of criticism towards it.(people said it is really bad) etc.

in reply to resipsaloquitur

Imagine if cars only now started to become a thing and we were living in a walkable city with viable public transportation.

We would probably as a society question why do cars need to be so large and require massive empty parking lots.

It would be crazy to pave over a whole park in the center of a green walkable town.



A few months in...


... I just have to say how much I am enjoying the NodeBB user interface. This is a really pleasant piece of software, and it seems to Just Work on the Fediverse.


Teachers scrambled after ICE released tear gas outside a Chicago elementary school


Chicago teachers said they’re dealing with traumatized students in underfunded schools — while the Trump administration spends millions to militarize American cities.

For the last month, the Trump administration has kept Chicago under siege. Customs and Border Protection agents arrested a 15-year-old U.S. citizen earlier this week after unleashing tear gas into a crowded residential neighborhood. Earlier in October, masked federal agents raided a five-story apartment building in a predominantly Black neighborhood of Chicago and zip-tied naked children as they dragged their parents away.

The Trump administration claims that Chicago is unsafe and needs order, despite the fact that the city experienced its lowest homicide rate in 60 years this summer. But instead of investing in underfunded schools or attempting to eradicate poverty, which have been shown to increase public safety, the administration is pouring millions into the militarization of American cities and fighting a court battle to federalize the National Guard in Chicago.

#News
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in reply to Alas Poor Erinaceus

A great reminder that Signal uses AWS cloud, plus Google Cloud, Microsoft Cloud and Cloudflare, all under US legislation. If any of these clouds goes down or becomes otherwise problematic, chatting degrades or fails.


Documentary: The full chain of responsibility behind the murder of 6-year-old Hind Rajab


The #HindRajabFoundation and Al Jazeera Channel - قناة الجزيرة reveal the full chain of responsibility behind the murder of 6-year-old Hind Rajab — uncovering who gave the orders and who carried them out.
Watch the documentary (Arabic with English subtitles)


How a Scottish maritime museum ended up in Israel’s 3D propaganda videos | 972mag.com


From the Bellingcat newsletter:

Researchers from Viewfinder, an independent research collective, analysed dozens of Israeli army animations used to justify Gaza strikes. They discovered digital assets sourced not from classified intelligence but commercial libraries and content creators, as +972 Magazine reports.


From the article:

An analysis of dozens of Israeli army animations, used to justify Gaza strikes and amplified by international outlets, discovered digital assets sourced not from classified intelligence but commercial libraries and content creators.

https://www.972mag.com/israeli-army-3d-propaganda-animations/

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US military airstrikes boats and kills several people in international waters, trying to start war against Venezuela.


in reply to Dessalines

Trump will claim that there can't be elections while the US is at war.
in reply to Maple Engineer

It's never happened. Everyone is saying so. Very biggly.

Except it absolutely has happened...

in reply to AreaKode

It’s never happened. Everyone is saying so. Very biggly.


Not only that, tRump critized Zeleneskyy for not holding elections precisely because the Ukranian constitution (or equivalent) does suspend elections...

in reply to Maple Engineer

Just like how Netanyahu and Zelenskyy do it in their countries
in reply to Ultraword

Yes? That's exactly what I meant.
in reply to Ultraword

this is the only comment in this thread to get more than one downvote and i think it's indicative of how likely it is to happen here since they don't like this message so much that they felt the need to take action to suppress it.
in reply to Ultraword

The USA constitution does not have such a escape valve to hold elections when in war... other countries may (and tRump, idiotic as he is, complained about Zeleneskyy regarding this specifically)
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NVIDIA’s New AI’s Movements Are So Real It’s Uncanny





PALESTINE 36 | Official UK Trailer - In Cinemas 31 October




Flow control


I've been thinking lately about [url=https://en.wikipedia.org/wiki/Flow_control_%28data%29]flow control[/url]. That's a feature of some networks where a receiver can tell a sender to slow down its sending rate to match the receiver's processing rate. In

I've been thinking lately about flow control. That's a feature of some networks where a receiver can tell a sender to slow down its sending rate to match the receiver's processing rate.

In TCP flow control, the receiving host returns a receiving buffer size in its acknowledgement segment, so the sending host know how much data it can send without overflowing the buffer.

I wonder if there are ways that a receiving ActivityPub protocol server could tell the sending server to slow down? Maybe we could reuse some of the RateLimit headers.

Another option would be a special header that says how big your incoming activity queue is. "I have a very long processing queue right now, please keep stuff in your outgoing queue for a while."



Representing the cause of an activity


In Activity Streams 2.0, we can represent the result of an activity using the [code]result[/code] property. Here, when the actor accepts a [code]Follow[/code] activity, the result is that the follower is added to the actor's [code]followers[/code] collect
In Activity Streams 2.0, we can represent the result of an activity using the result property. Here, when the actor accepts a Follow activity, the result is that the follower is added to the actor's followers collection.
{
   "@context": "https://www.w3.org/ns/activitystreams",
   "id": "https://social.example/accept/12931",
   "type": "Accept",
   "actor": "https://social.example/person/24405",
   "to": ["as:Public", "https://other.example/person/21356"],
   "object": {
      "id": "https://other.example/follow/30360",
      "type": "Follow",
      "to": ["as:Public", "https://social.example/person/24405"],
      "actor": "https://other.example/person/21356",
      "object": "https://social.example/person/24405"
   },
   "result": {
       "id": "https://social.example/add/11066",
       "type": "Add",
       "actor": "https://social.example/person/24405",
       "to": ["as:Public", "https://other.example/person/21356"],
       "object": "https://other.example/person/21356",
       "target": "https://social.example/person/24405/followers"
   }
}

My question is: how can the Add activity refer to the activity that caused it? I don't think we have a standard property for this. My best guess right now is context or maybe instrument, neither of which seems ideal. I think an extension inverse property, like resultOf, might be the best option.


Server-sent Events for the ActivityPub API


One of the user stories for the ActivityPub API task force is to enable real-time updates for clients.

github.com/swicg/activitypub-a…

To help with this, I added a draft specification for server-sent events:

swicg.github.io/activitypub-ap…

If you're interested, please review and provide comments on the GitHub issue. I'd like to start a reference implementation soon.

reshared this



We Desperately Need Maximum Wage Laws


With wealth inequality and billionaire control over American society growing ever more obscene, it’s well past time to implement a maximum wage limit.



Rilasciato Liquorix Kernel 6.17


Liquorix Kernel 6.17 è disponibile per gli utenti Linux: prestazioni desktop migliorate, supporto hardware aggiornato e ottimizzazioni per carichi multimediali #Linux #Kernel

in reply to recycle_me_please

Hey all you haters, the Americans redefining liberal to mean not liberal is really fucking annoying. Stop it!
in reply to ReCursing

There is a need to redefine the qord in the US. Liberals are just right winged politicians. Always have been. In the US they posed as "left", but the US doesn't have a left. You can only choose wether you get to use lube when they fuck you.

In europe the "liberals" are economically right and socially "not strongly defined". They don'tcare about people. They only care about money and free markets. They are capitalists, but they are not nazis. In the Netherlands we've had a liberal regime for 20 years. They killed most social institutions by which they've paved the road for the rise of the far right, but they are not nazis.

In europe there is no need to redefine the word. We know exactly what it means and we know the stereotypes who vote for them, they are not nazis. They are capitalists.



Russia/Trump demands continue to degrade to 'current frozen lines'.


Lost in the awfulness of this entire pointless genocidal vanity revenge project is just how historically badly it is going for Russia. From an initial goal of total conquest, in a month their truce startping point has slid from 1) Total Capitulation to 2) All 4 'annexed' regions plus Crimea, disarmament & constitutional neutrality to 3) Give us Donbas, and maybe our stooges in the U.N. can run Ukraine to 4) Please freeze the lines and give us something, and stop hitting our gas facilities. Trump, as always, overplayed his hand with leverage he doesn't actually have, and now has nearly no sway over Ukraine - Zelensky is tellin him flat 'No'. European and domestic support is probably enough to keep Russia from any meaningful strategic wins at this point against a severaly degraded and over rated Russian army.

https://www.newsweek.com/russia-ukraine-war-kremlin-putin-trump-10905942

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in reply to uszo165

Bro I'm not going to wait 15 seconds to read that article fucking cloudflare, takes years to complete on a smartphone.

in reply to DeathByBigSad

What exactly are you looking for? If you're looking dor a music player with integrated lyrics being shown line-by-line, try OuterTune one github.
in reply to DeathByBigSad

I tried a lot of them. SongSync was the only app that gave me decent results. It can download synced lyrics like you want, but it depends on the lyrics provider. Spotify doesn't work, Apple does but kinda broken. Stick to the other options.



ELI5: Is browsing on 4g/5g networks less secure than on your own wifi?


And does that change whether using a VPN or not? With VPN I'd assume its the same.
in reply to bridgeenjoyer

It's going to depend on what types of data you are looking to protect, how you have your wifi configured, what type of sites you are accessing and whom you are willing to trust.

To start with, if you are accessing unencypted websites (HTTP) at least part of the communications will be in the clear and open to inspection. You can mitigate this somewhat with a VPN. However, this means that you need to implicitly trust the VPN provider with a lot of data. Your communications to the VPN provider would be encrypted, though anyone observing your connection (e.g. your ISP) would be able to see that you are communicating with that VPN provider. And any communications from the VPN provider to/from the unencrypted website would also be in the clear and could be read by someone sniffing the VPN exit node's traffic (e.g. the ISP used by the VPN exit node) Lastly, the VPN provider would have a very clear view of the traffic and be able to associate it with you.

For encrypted websites (HTTPS), the data portion of the communications will usually be well encrypted and safe from spying (more on this in a sec). However, it may be possible for someone (e.g. your ISP) to snoop on what domains you are visiting. There are two common ways to do this. The first is via DNS requests. Any time you visit a website, your browser will need to translate the domain name to an IP address. This is what DNS does and it is not encrypted by default. Also, unless you have taken steps to avoid it, it likely your ISP is providing DNS for you. This means that they can just log all your requests, giving them a good view of the domains you are visiting. You can use something like DNS Over Https (DOH), which does encrypt DNS requests and goes to specific servers; but, this usually requires extra setup and will work regardless of using your local WiFi or a 5g/4g network. The second way to track HTTPS connections is via a process called Server Name Identification (SNI). In short, when you first connect to a web server your browser needs to tell that server which domain it wants to connect to, so that the server can send back the correct TLS certificate. This is all unencrypted and anyone inbetween (e.g. your ISP) can simply read that SNI request to know what domains you are connecting to. There are mitigations for this, specifically Encrypted Server Name Identification (ESNI), but that requires the web server to implement it, and it's not widely used. This is also where a VPN can be useful, as the SNI request is encrypted between your system and the VPN exit node. Though again, it puts a lot of trust in the VPN provider and the VPN provider's ISP could still see the SNI request as it leaves the VPN network. Though, associating it with you specifically might be hard.

As for the encrypted data of an HTTPS connection, it is generally safe. So, someone might know you are visiting lemmy.ml, but they wouldn't be able to see what communities you are reading or what you are posting. That is, unless either your device or the server are compromised. This is why mobile device malware is a common attack vector for the State level threat actors. If they have malware on your device, then all the encryption in the world ain't helping you. There are also some attacks around forcing your browser to use weaker encryption or even the attacker compromising the server's certificate. Though these are likely in the realm of targeted attacks and unlikely to be used on a mass scale.

So ya, not exactly an ELI5 answer, as there isn't a simple answer. To try and simplify, if you are visiting encrypted websites (HTTPS) and you don't mind your mobile carrier knowing what domains you are visiting, and your device isn't compromised, then mobile data is fine. If you would prefer your home ISP being the one tracking you, then use your home wifi. If you don't like either of them tracking you, then you'll need to pick a VPN provider you feel comfortable with knowing what sites you are visiting and use their software on your device. And if your device is compromised, well you're fucked anyway and it doesn't matter what network you are using.

in reply to bridgeenjoyer

Secure against whom?

If it's from a random thief, both are about equality secure, they rely on proven cryptographic methods.

If it's from somebody powerful enough to make an ISP bend the knee, then they are equally insecure because those cryptographic methods assume you trust the underlying infrastructure. If you do not though, then yes using a VPN will help as you are adding your own level of encryption on top.