Neil Eriksson
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neileriksson.bsky.social
Neil Eriksson
@neileriksson.bsky.social
130 followers 86 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



@[email protected]

Was on Twitter as @neileriksson
Posts Replies Media Videos
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 · 16d
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
Reposted by Neil Eriksson
andrewjfrizzell.bsky.social
Watch all of this, sign the letter and ‘Just Have a think!’
Even if you’re too old (like me) to worry about it, think about your kids, their kids and beyond. I don’t have any kids but I have nephews and nieces and their kids who I care about. Do it. It’s important to have a voice.
climatenews.bsky.social Climate News @climatenews.bsky.social · 24d
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
December 1, 2025 at 9:03 AM
Reposted by Neil Eriksson
leonsimons.com
No one should be surprised when a planet that accumulates heat more than twice as fast starts to see temperatures go up more than twice as fast.

This isn't rocket science, but we do need more of these NASA satellites. 🌍🛰

To keep us from going blind.

bsky.app/profile/leon...
June 6, 2025 at 9:53 PM
Reposted by Neil Eriksson
ghostpanther.bsky.social
It’s no accident the ladder climbers & fake smart careerist class occupying our government, mass media, boardrooms etc aren’t capable of understanding/responding to what Hansen is theorizing here.

A proper response would change the world within weeks. And that is the last thing big capital wants.
drjamesehansen.bsky.social James Hansen @drjamesehansen.bsky.social · Nov 21
Warning! This colorful chart is censored by IPCC - mailchi.mp/caa/warning-...
Also available on Substack: jimehansen.substack.com/p/warning-th...
November 23, 2025 at 9:53 AM
Reposted by Neil Eriksson
climatenews.bsky.social
Finland’s President Alexander Stubb @alexstubb.bsky.social made an excellent short 3 minute speech at the G20 summit in South Africa about multilateralism and urging nations to cooperate fairly following the rules to achieve sustainability.

Worth watching:
Finland’s Alexander Stubb Calls for Rules-Based Approach to Global Wars in First G20 Speech | AC1B
YouTube video by DRM News
youtu.be
November 23, 2025 at 6:56 PM
Reposted by Neil Eriksson
leonsimons.com
The atmospheric CO₂ growth rate was off the chart in 2024!
November 14, 2025 at 7:00 PM
Reposted by Neil Eriksson
luckytran.com
Trump and RFK Jr's CDC just added a page that is full of disinformation about vaccines and autism.
Autism and Vaccines QUESTIONS AND CONCERNS | PAGE 2 OF 9 | ALL PAGES For Everyone NOV. 19, 2025 KEY POINTS The claim "vaccines do not cause autism" is not an evidence-based claim because studies have not ruled out the possibility that infant vaccines cause autism. Studies supporting a link have been ignored by health authorities. HHS has launched a comprehensive assessment of the causes of autism, including investigations on plausible biologic mechanisms and potential causal links.
November 20, 2025 at 5:28 AM
Reposted by Neil Eriksson
subfossilguy.bsky.social
1,019 glaciers have disappeared since 1973 in Switzerland! ✝️

1st nationwide assessment of vanished glaciers:
>40% of the glaciers inventoried in 1973
~13% (47±3 km²) of total glacier area loss! 🧊🔥

But, as it is based on the latest inventory (from 2016), the actual figures are far much higher! 📈 😰
November 19, 2025 at 12:05 PM
Reposted by Neil Eriksson
zacklabe.com
A view of this year's extreme sea surface temperatures and recent warming across the North Pacific... 🌊

This graph shows the average for a band across the midlatitudes for every average January-October period from 1854-2025 using ERSSTv5 data.
Green line graph time series of average sea surface temperature anomalies for each January-October from 1850 through 2025 for only the midlatitude region of the North Pacific Ocean. There is large interannual variability, but an overall long-term increasing trend. Anomalies are computed relative to a 1981-2010 baseline. 2025 is a record high.
November 19, 2025 at 1:28 AM