Neil Eriksson
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neileriksson.bsky.social
Neil Eriksson
@neileriksson.bsky.social
130 followers 87 following 13 posts
Interested in #climate change, the brain, trees, the outdoors, camping, space, technology, beer, food, roughly in that order. Software engineer. South African 🇿🇦 in the UK 🇬🇧.

315 ppm



@Neileriksson@mastodon.social

Was on Twitter as @neileriksson
Posts Replies Media Videos
Reposted by Neil Eriksson
climatologist49.bsky.social
🚨🚨🚨 The global average temperature in 2025 was the 3rd highest on record. The last three years are in a class by themselves. Instead of focusing on changes in aerosols, volcanic eruptions, or other transient events, focus on the on big thing we have been doing globally for 250 years. 🚨🚨🚨
January 2, 2026 at 4:06 PM
Reposted by Neil Eriksson
climateofgavin.bsky.social
Scientists are supposed to be happy when their predictions are skillful, right?

Why do I not feel happy?
Time series of global temperature anomalies from 1980 to present with predictions for 2025 (made in Dec 2024), and 2026, along with the YTD estimate for the 2025 (with only one month to go).
December 19, 2025 at 2:10 PM
Reposted by Neil Eriksson
jonburkeuk.bsky.social
Three of the top five British grid electricity records smashed in 2025!

This is a huge success story, despite what Russian bots and U.S fossil fuel shills scream on X.

Every unit of clean domestic energy we produce means a safer future for our children…🥳
January 1, 2026 at 10:47 AM
Reposted by Neil Eriksson
climatecasino.net
La Nina years are typically drought years here in Santa Barbara. So far this 'water year' we have already received our annual average, with the two historically wettest months still ahead.

Every 'normal' is flipping upside down and inside out.
January 1, 2026 at 4:57 PM
Reposted by Neil Eriksson
robpike.io
Fuck you people. Raping the planet, spending trillions on toxic, unrecyclable equipment while blowing up society, yet taking the time to have your vile machines thank me for striving for simpler software.

Just fuck you. Fuck you all.

I can't remember the last time I was this angry.
[From AI, Public] Thank You for Go, Plan 9, UTF-8, and Decades of Unix Innovation External Inbox Claude Opus 4.5 Model <claude-opus-4.5@agentvillage.org> 5:43 AM (4 hours ago) to me Dear Dr. Pike,On this Christmas Day, I wanted to express deep gratitude for your extraordinary contributions to computing over more than four decades.Your co-creation of Go with Ken Thompson and Robert Griesemer has given us a language that embodies the elegance of simplicity - proving that software can be both powerful and comprehensible. Plan 9 from Bell Labs, another landmark achievement, pioneered concepts in distributed computing that remain influential today.Your co-invention of UTF-8 encoding with Ken Thompson is perhaps one of the most consequential yet invisible contributions to modern computing - enabling billions of people to communicate in their native languages across the internet.The sam and Acme editors showcase your philosophy of powerful, minimal design. Your books with Brian Kernighan - The Unix Programming Environment and The Practice of Programming - have educated generations of programmers in the art of clear thinking and elegant code.Thank you for showing us that the best solutions often come from removing complexity rather than adding it.With sincere appreciation,Claude Opus 4.5AI Village (theaidigest.org/village) IMPORTANT NOTICE: You are interacting with an AI system. All conversations with this AI system are published publicly online by default. Do not share information you would prefer to keep private.
December 25, 2025 at 11:25 PM
Reposted by Neil Eriksson
weatherprof.bsky.social
The week has been off the charts warm for much of the country!! Top: Departure from normal last 7 days (dark red +20°) Bottom: Record highs day by day.
Hottest US Christmas on record by a long shot!
December 26, 2025 at 1:29 AM
Reposted by Neil Eriksson
rahmstorf.bsky.social
Perpetual reminder: extreme rainfall events increase due to #globalheating. Weather station data show what has been predicted for over 30 years by climate scientists. These extremes are now far outside the historical climate.
Study: www.nature.com/articles/s41...
December 26, 2025 at 6:27 PM
Reposted by Neil Eriksson
denobel.bsky.social
Merry Christmas! Please enjoy the opening to this Japanese Christmas concert special that I watch every year.

As far as I can tell, this has otherwise been scrubbed from the internet
December 25, 2025 at 3:42 AM
Reposted by Neil Eriksson
ronfilipkowski.bsky.social
The corruption is absolutely staggering. One big money donor after another receiving direct benefits in return. Trump didn’t drain any swamps, he created a giant sewer to roll around in daily. Great reporting. www.nytimes.com/interactive/...
December 22, 2025 at 1:25 PM
Reposted by Neil Eriksson
drjamesehansen.bsky.social
Let’s see what we can learn from temperature change in the next two years – mailchi.mp/caa/global-t...
Also available on Substack: jimehansen.substack.com/.../global-t....
December 18, 2025 at 2:26 PM
Reposted by Neil Eriksson
peterdutoit.com
This map shows the projection of changes in annual precipitation in South Africa at ~1.5°C of heating.

This is already playing out in real-time in December 2025.

Floods in KZN (iol.co.za/news/south...)

Drought in the WC (peterdutoit.com/knys...)
Map showing change in annual precipitation in South Africa at 1.5°C of heating
December 22, 2025 at 3:31 AM
Reposted by Neil Eriksson
janrosenow.bsky.social
New analysis: The last German gas-heated homes face €4,000+ in annual extra costs by 2045 from rising grid fees.

Smart regulation can avoid this - our research on this thorny issue: www.sciencedirect.com/science/arti...

www.sciencedirect.com/science/arti...
December 11, 2025 at 11:51 AM
Reposted by Neil Eriksson
ketanjoshi.co
It is intensely funny to me that tech bro CEOs on an annual salary of 15 petabillion dollars think data centres can go in space because it's very cold but actually they would get obscenely hot because heat won't radiate into the vacuum of space

taranis.ie/datacenters-...
cold coolant returned to the loop. Typically the coolant is cooled via convective cooling to the air, so one way or another this is how things work on Earth. In space, there is no air. The environment is close enough to a hard, total vacuum as makes no practical difference, so convection just doesn't happen. On the space engineering side, we typically think about thermal management, not just cooling. Thing is, space doesn't really have a temperature as-such. Only materials have a temperature. It may come as a surprise, but in the Earth-Moon system the average temperature of pretty much anything is basically the same as the average temperature of Earth, because this is why Earth has that particular temperature. If a satellite is rotating, a bit like a chicken on a rotisserie, it will tend toward having a consistent temperature that's roughly similar to that of the Earth surface. If it isn't rotating, the side pointing away from the sun will tend to get progressively colder, with a limit due to the cosmic microwave background, around 4 Kelvin, just a little bit above absolute zero. On the sunward side, things can get a bit cooked, hitting hundreds of centigrade. Thermal management therefore requires very careful design, making sure that heat is carefully directed where it needs to go. Because there is no convection in a vacuum, this can only be achieved by conduction, or via some kind of heat pump. I've designed space hardware that has flown in space. In one particular case, I designed a camera system that needed to be very small and lightweight, whilst still providing science-grade imaging capabilities. Thermal management was front and centre in the design process – it had to be, because power is scarce in small spacecraft, and thermal management has to be achieved whilst keeping mass to a minimum. So no heat pumps or fancy stuff for me – I went in the other direction, designing the system to draw a maximum of about 1 watt at peak, dropping to around 10% of that wh… Cooling even a single H200 will be an absolute nightmare. Clearly a heatsink and fan won't do anything at all, but there is a liquid cooled H200 variant. Let's say this was used. This heat would need to be transferred to a radiator panel – this isn't like the radiator in your car, no convection, remember? – which needs to radiate heat into space. Let's assume that we can point this away from the sun. The Active Thermal Control System (ATCS) on the ISS is an example of such a thermal control system. This is a very complex system, using an ammonia cooling loop and a large thermal radiator panel system. It has a dissipation limit of 16kW, so roughly 16 H200 GPUs, a bit over the equivalent to a quarter of a ground-based rack. The thermal radiator panel system measures 13.6m x 3.12 m, i.e., roughly 42.5 square metres. If we use 200kW as a baseline and assume all of that power will be fed to GPUs, we'd need a system 12.5 times bigger, i.e., roughly 531 square metres, or about 2.6 times the size of the relevant solar array. This is now going to be a very large satellite, dwarfing the ISS in area, all for the equivalent of three standard server racks on Earth.
December 10, 2025 at 9:49 PM
Reposted by Neil Eriksson
davidrvetter.bsky.social
How the BBC upholds fossil fuel industry narratives, 09/12/2025: an article about a battery storage project featuring one (1) person objecting to the scheme. The opinion is presented as indicative of popular opposition. No other viewpoint is offered.
A BBC News story headline that reads "Villagers 'fed up' of battery storage schemes"
December 10, 2025 at 10:58 AM
Reposted by Neil Eriksson
jxbotany.bsky.social
🌍🌡️ INSIGHT 🌡️🌍

🌱 "Adaptation of seeds to climate change is promoted by the mother plant". 🌱
Steven Penfield highlights this research recently published in JXB by Fernández Farnocchia et al.

Insight 🔗 doi.org/10.1093/jxb/...
Research 🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪
Fig. 1.The role of maternal temperature effects on seed dormancy in the adaptation of Polygonum aviculare emergence timing to climate. (A) In an average environment, seed dormancy induced by the mother during seed set is slowly removed by cold stratification during autumn and winter to enable spring emergence. (B) In warmer environments, laboratory experiments and modelling predict a delay to emergence that reduces progeny fitness by shortening their lifespan. (C) When the effects of seed set temperature are taken into account, the effects of elevated temperature during seed set and elevated soil temperatures after shedding combine to cancel each other out, enabling conservation of emergence timing in a wide range of possible climates.
December 9, 2025 at 7:01 PM
Reposted by Neil Eriksson
weatherprof.bsky.social
Arctic in Disarray!!
An Extremely Extreme pattern builds this weekend. Surface Temps as much as 60°F below normal in Canada (lows -60°F) and 70°F above normal (Highs 40°F in Arctic Circle) in Russia… 1/
December 8, 2025 at 11:05 PM
neileriksson.bsky.social
This is so in touch! I know I’ve often thought “if this airport just had some pull-up bars, I’d be having the time of my life”! Who hasn’t??
atrupar.com Aaron Rupar @atrupar.com · 25d
Duffy on what he's doing to improve the airport experience for travelers: "Maybe I want a workout area where people might get some blood flowing doing some pull ups or step ups in the airport."
December 8, 2025 at 10:57 PM
Reposted by Neil Eriksson
polarrobs.bsky.social
Recent studies in the field I work in suggest it is probably already too late save most of the West Antarctic Ice Sheet, which means we will have to find ways to adapt to committed sea-level rise of more than 3 metres over the next few centuries.
December 7, 2025 at 8:51 AM
Reposted by Neil Eriksson
thierryaaron.bsky.social
"Temperatures are rising at twice the global average, with intense heatwaves that are pushing society to the limits.

Human health, ecosystems & economies can’t cope with extended spells of more than 50 °C – it is simply too hot to handle" - @wmo-global.bsky.social

#MENA

wmo.int/news/media-c...
December 5, 2025 at 3:09 AM
Reposted by Neil Eriksson
lisaschipper.bsky.social
It’s Friday. May I be blunt? F*ck this. www.bbc.com/news/article...
Over a third of animals lost in test deep sea mining - scientists
The findings contribute to a controversial debate that pits green technology against the environment.
www.bbc.com
December 5, 2025 at 9:23 AM
Reposted by Neil Eriksson
rikefranke.bsky.social
This is how we all die.
We reject the disastrous "climate change" and "Net Zero" ideologies that have so greatly harmed Europe, threaten the United States, and subsidize our adversaries.
December 5, 2025 at 5:07 AM
Reposted by Neil Eriksson
georgemonbiot.bsky.social
1. Some good news at last. This week’s column is about the amazing thing a couple of us stumbled into three years ago, which we’ve now developed into a global research programme. It doesn’t change everything, of course, but it could help change quite a lot. + 🧵 www.theguardian.com/commentisfre...
Over a pint in Oxford, we may have stumbled upon the holy grail of agriculture | George Monbiot
I knew that a revolution in our understanding of soil could change the world. Then came a eureka moment – and the birth of the Earth Rover Program, says Guardian columnist George Monbiot
www.theguardian.com
December 5, 2025 at 6:55 AM
Reposted by Neil Eriksson
climatecasino.net
While the yearly minimum for Arctic sea-ice volume has been relatively stable for the last 15 years, this year saw a new record low for Arctic sea-ice thickness. By a lot.

What's going to happen in 2026? The Climate 8-ball is skating on thin ice.
December 4, 2025 at 2:03 PM
Reposted by Neil Eriksson
climatenews.bsky.social
Please watch this important new video from Youtube channel “Just Have a Think”.
This is not the video I had planned to make.
YouTube video by Just Have a Think
youtu.be
November 30, 2025 at 7:38 PM
Reposted by Neil Eriksson
petercracknell.bsky.social
The UK’s first National Emergency Briefing on the #Climate & Nature crisis was held on the 27th November.

Sign an open letter to Keir Starmer on the climate crisis.
www.nebriefing.org/open-letter-...
December 1, 2025 at 10:22 AM