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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
499•klaussilveira•8h ago•138 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
836•xnx•13h ago•503 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
53•matheusalmeida•1d ago•10 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
110•jnord•4d ago•18 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
164•dmpetrov•8h ago•76 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
166•isitcontent•8h ago•18 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
59•quibono•4d ago•10 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
279•vecti•10h ago•127 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
339•aktau•14h ago•163 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
222•eljojo•11h ago•139 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
332•ostacke•14h ago•89 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
421•todsacerdoti•16h ago•221 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
34•kmm•4d ago•2 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
11•denuoweb•1d ago•0 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
360•lstoll•14h ago•248 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
15•gmays•3h ago•2 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
9•romes•4d ago•1 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
58•phreda4•8h ago•9 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
209•i5heu•11h ago•156 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
33•gfortaine•6h ago•8 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
121•vmatsiiako•13h ago•51 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
159•limoce•3d ago•80 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
257•surprisetalk•3d ago•33 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1013•cdrnsf•17h ago•422 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
51•rescrv•16h ago•17 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
93•ray__•5h ago•43 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
44•lebovic•1d ago•12 comments

WebView performance significantly slower than PWA

https://issues.chromium.org/issues/40817676
10•denysonique•5h ago•0 comments

How virtual textures work

https://www.shlom.dev/articles/how-virtual-textures-really-work/
35•betamark•15h ago•29 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
81•antves•1d ago•59 comments
Open in hackernews

2025 Was Another Exceptionally Hot Year

https://e360.yale.edu/digest/2025-second-hottest-year
44•Brajeshwar•1mo ago

Comments

NooneAtAll3•1mo ago
I wonder, if some countries are secretly conducting geoengineering - would it be detectable? would there be any hint different from "anomalous heating" we observe now?
witte•1mo ago
It really depends on what you mean by geoengineering. Dumping things into the atmosphere has been easy to detect for a while now, but with NASA spinning down their space assets focused on climate data [1] there’s definitely dimensional data that’s being lost. However, there’s still plenty of data being supplied via the EU Copernicus team [2] to track a lot of those things that hopefully will be able to fill some of the gaps.

All of this to say, with enough stable overhead assets then most things can be detected that would cause possible impacts in climate.

1. https://www.npr.org/2025/08/04/nx-s1-5453731/nasa-carbon-dio...

2. https://dataspace.copernicus.eu/explore-data

gamerdonkey•1mo ago
Basically every country has been conducting a massive geoengineering project in the open for the past decades by releasing billions of tonnes of CO2 (and other greenhouse gasses) into the atmosphere. We've been able to detect that, yes.
Sharlin•1mo ago
It feels to me that every year breaking weather records is becoming, or has already become, the new normal. I can imagine people thinking "weather has always done that, big deal."
josefritzishere•1mo ago
We are failing an open book test.
egberts1•1mo ago
So, a clueless Luddite like me went and pulled the temperature reading database since 1903 and did the following:

- search for all United States - excluded all 14,200 US stations installed since 1973 - average/median them the rest

Trend? Largely flat.

Did I jump the gun?

Were excluded stations like number 80238 (Arcadia, FL) being installed near heat-producing objects (air conditioning condenser unit, nuclear cooling towers, new parking lots) the cause? A valid cause?

renewiltord•1mo ago
The other thing is that people use the classic chart trick of not starting the Y axis from zero Kelvin (the only scientific scale). If you do that you see that even including all these stations the trend is imperceptible.
trehalose•1mo ago
On that scale, the difference between normal human body temperature and dangerous hyperthermia is just about imperceptible too. Even the difference between summer and winter is pretty small. Dunno why we bother with heating and air conditioning and having two sets of clothing.
chaps•1mo ago
Wait so, in response to an article about the current year being hot, you excluded the past 50 years and made a conclusion that things are flat. Am I missing something from your post?
renewiltord•1mo ago
Not excluding the 50 years. Excluding stations installed then. Older stations still report. You have to tune the number right. If you choose 40 years it doesn’t work. So something must have happened in 1973.
polotics•1mo ago
May i suggest you consult the website realclimate.org? this and many other classic denialist tropes are well addressed there. Thank You!
ctenb•1mo ago
Care to paraphrase the relevant explanation?
rcxdude•1mo ago
https://www.realclimate.org/index.php/archives/2007/07/no-ma...

Basically, it's something that's taken into account. The two main ways are calibrating urban stations relative to nearby rural stations, and by looking at the variation between windy and calm days, since the effects are larger on calm days (so if things are corrected well, there shouldn't be a difference)

polotics•1mo ago
Please no, because this would be feeding the sea lions.
rcxdude•1mo ago
It's not something that climatologists and meteorologists are unaware of. Even for longer-running weather stations you can get a heat island effect if they're in a city and it's built up over time. So while I can't say exactly why you got the result you did with this specific query and dataset it is something that is taken into account when analyzing this kind of data.
sam_lowry_•1mo ago
Show me the source, Luke!
gamerdonkey•1mo ago
I have many questions about your methodology:

- How many stations were you left with?

- Did that number decline over time (as you excluded replacement stations)?

- What was your scale?

- Are you willing to share your results?

- How is this still the top comment after 30 minutes?

But your comment touches on a common misconception, which is that heat islands must be excluded to accurately measure the overall temperature. You refer to the idea as "heat-producing objects", but I would argue that a parking lot is more of a heat reflecting object. More to the point, even heat islands must be considered as part of the worldwide climate, simply because they are part of this wide world. Their heat does not simply disappear (I hope you agree that would violate physics).

Imagine we want to measure the average temperature inside a single 30-foot by 10-foot room during winter. We have two probes: one near a burning fireplace on one end of the room, and one near a window on the other. If we excluded data from one probe or the other, do you believe we would get an accurate average reading?

Of course, when scientists are calculating a global temperature, they have to handle special cases in the data (like heat islands). This has been known for some time, and you can read more about it here: https://www.realclimate.org/index.php/archives/2007/07/no-ma...

I fear that I've spent too much time responding to this, but I wanted to take it on in earnest.

renewiltord•1mo ago
Most of the top environmental organizations agree that we should not build nuclear plants. Many also oppose solar and wind. It’s important to remember this so that we don’t react in a knee-jerk fashion and try to build so-called “green energy”.
trehalose•1mo ago
We can't only be concerned about the environment. We've got to maintain a healthy economy too. Building out expensive coal and natural gas just because some environmentalists demand it is an inefficient use of funds and a drain on taxpayers and electricity bill payers. Solar and wind might not make you feel good, but the economy doesn't run on feelings.
tzs•1mo ago
> Building out expensive coal and natural gas just because some environmentalists demand it is an inefficient use of funds and a drain on taxpayers and electricity bill payers

Environmentalists overwhelmingly are against building out coal power plants.

sfn42•1mo ago
Of course warming is accelerating. Emissions are accelerating and the second and third order effects of ice cap loss, thawing permafrost etc are setting in on top.

We have known about this for a century at this point and it's still being presented like a surprise. It's not a surprise. It's exactly what anyone who's paid attention has been expecting for decades.

Over a decade ago I decided not to have kids because I don't think they will have a world worth inheriting. I've mostly stopped following these kinds of news because it's depressing but it's not at all surprising.

They've been telling us this would happen for my entire life, and everyone has been sticking their heads in the sand thinking it'll be fine for the next few hundred years and looking at me like I'm a lunatic when I tell them it's happening during our lifetimes.

bokohut•1mo ago
Don't worry sfn42 because those with their heads in the sand with be forced to face reality as that sand fills with water thus forcing them out for air.
on_the_train•1mo ago
All while it's currently the coldest winter of the last 15 years. Fascinating
dwaltrip•1mo ago
These facts aren’t mutually exclusive.
seba_dos1•1mo ago
...which still seems barely cold at all if you lived for more than 30 years.
human_person•1mo ago
But the coldest year we'll experience for the rest of our lives. Even if we get emissions down to zero tomorrow we are facing additional degrees of warming.

Instead of focusing on emission reductions we need to be talking about the best way to capture and confidently sequester CO2 on the tens of gigaton scale. In terms of size -- the carbon atoms in a decades worth of anthropogenic CO2 equivalents could build a diamond mount everest. A few hundered ppm change doesnt sound like much until you remember you need to integrate across the volume of the atmosphere.

Mr_Eri_Atlov•1mo ago
The conversation under this post is an excellent example of why humanity is going to be faced with dramatic and catastrophic changes in 2030.
bokohut•1mo ago
As the study of the ice cores and the data gleaned from that ongoing study which contains many millennia of scientific data before our known intelligent human occupation some are not surprised. Many more however are going to learn from the result once again of failing to study history and apply what was learned from that education. Most are only concerned with their immediate vicinity that impacts them directly because until change is forced it is human nature to maintain a pattern. We only get 'pissed' when we are not the ones deciding to change our own pattern. This is the recognition of the pattern and the cycle of everything everywhere known and unknown. Change is the only thing guaranteed in life and your life too will conclude at some point as just yesterday I attended a close family members funeral reinforcing that conclusion. As we age we are confronted with a reality of progress, both in our personal lives as well as our global world. Younger generations choose not to accept that reality just as all the old grey hairs here likely did when younger too.

A major news site today released a story that relates to several recent HN past link shares and discussions including some of my own. As the ice melts on the caps so to does the pressure become less on those subterranean lands as the water is distributed in liquid form into oceans, where are the rising sea deniers as they certainly exist too. Our now spheroid will rebound in time and we have only understood tectonic plates for how long?

It is going to warm up in more ways than one if we do not first manage to directly eliminate ourselves versus the secondary affects which we can now directly measure and feel that are setting in from our human 'progress'.

almosthere•1mo ago
Record number of G4s too