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f451

@bsdtec.bsky.social

Born when co2 was 320ppm. It's now 423ppm :( bicycle as primary transport Brompton & mountain bike & mountain e-bike. unix/linux sysadmin, more ops than dev. Bookish. Concerned about AGW, biome, enshittification

1,083 Followers  |  4,674 Following  |  101 Posts  |  Joined: 13.11.2024  |  1.8876

Latest posts by bsdtec.bsky.social on Bluesky

Post image 20.10.2025 13:45 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 1    πŸ“Œ 1
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We’re Touching 1.9Β°C - And It’s Only 2025 Real time data coming out of the world’s climate measurement systems should be stopping us in our tracks. The latest estimate by climate scientist Dr Karsten Haustein shows that, this week, the Earth ...

Real time data coming out of the world’s climate measurement systems should be stopping us in our tracks. The latest estimate shows that, this week, the Earth is 1.9Β°C warmer than before we began burning fossil fuels.
#climatecrisis #ClimateEmergency #auspol www.lyrebirddreaming.com/post/we-re-t...

20.10.2025 00:29 β€” πŸ‘ 3645    πŸ” 1643    πŸ’¬ 200    πŸ“Œ 116
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The Most Efficient Traveler Isn’t a Bird or a Fishβ€”It’s You on a Bike A famous graphic, now updated, compares locomotion in the animal kingdom

Remember this one? β€œHumans aren’t very efficient moversβ€”until you put us on a bicycle, when we become some of the most energy-efficient land travelers in the animal kingdom.” Via Scientific American @sciam.bsky.social #CityMakingMath

16.10.2025 23:24 β€” πŸ‘ 579    πŸ” 189    πŸ’¬ 17    πŸ“Œ 12
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🚨 None of the UN IPCC models capture what NASA satellites are seeing.

We should assume and prepare for the worst, as there is a non-zero chance of 3Β°C of global warming by 2050.

We better assume that it will happen and/or try to make sure that it doesn't happen.

1/

13.10.2025 12:31 β€” πŸ‘ 93    πŸ” 49    πŸ’¬ 5    πŸ“Œ 1
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One year’s worth of bread lost in UK to wrecked harvests since 2020, report finds Worsening droughts and floods have destroyed wheat for 4bn loaves of bread and forced record levels of imports

WE WILL RUN OUT OF FOOD.

The fact we aren’t using this precious & precarious moment to rebuild our food system around need & not profit - changing what we eat, how we produce food & how we transport it - will prove our gravest & most suicidal mistake.

08.10.2025 10:47 β€” πŸ‘ 186    πŸ” 70    πŸ’¬ 10    πŸ“Œ 2
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Monitoring changes in UK temperature Multiple sources of data agree on long-term observed trends

Monitoring changes in UK temperature

To (almost) no-one’s surprise, multiple sources of data agree on the long-term trends in UK temperatures.

climatelabbook.substack.com/p/monitoring...

08.10.2025 08:23 β€” πŸ‘ 69    πŸ” 28    πŸ’¬ 3    πŸ“Œ 2

I just updated this NASA CERES graph. The regional level of Absorbed Solar Radiation increased by 4.2 W/mΒ² in 20 years!!

That's more than the global greenhouse gas forcing increase since 1750!

The 2 W/mΒ² Net Flux increase indicates that there is a lot more regional warming in the pipeline.

07.10.2025 12:18 β€” πŸ‘ 82    πŸ” 39    πŸ’¬ 6    πŸ“Œ 4
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This is what rapidly accelerating warming looks like.

Another off the chart datapoint:
NOAA Sea Surface Temperature data for the summer 2025.

We will discuss this and more on Climate Chat today.

See link for time and hit the πŸ”” to get a notification when we go live
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youtube.com/live/BNZ_biC...

21.09.2025 10:02 β€” πŸ‘ 179    πŸ” 77    πŸ’¬ 5    πŸ“Œ 4
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The image shows that the global sea ice area was 2.31 million kmΒ² below the 1981-2010 mean on September 1, 2025, a deviation from 1981-2010 of -3.76Οƒ. arctic-news.blogspot.com/2025/09/arct...

03.09.2025 09:01 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Microsoft says U.S. law takes precedence over Canadian data sovereignty Microsoft representative says US CLOUD Act comes before other country's sovereignty.

β€œMicrosoft says U.S. law takes precedence over Canadian data sovereignty”

… or how to lose government contracts all over the world in one easy step. πŸ–•πŸΎπŸ–•πŸΎ

www.digitaljournal.com/tech-science...

22.08.2025 08:56 β€” πŸ‘ 2950    πŸ” 995    πŸ’¬ 171    πŸ“Œ 221

This folks is the coolest Summer you will ever experience again
As parts of America sizzle under a heat dome
Southern Europe is frying too with Turkey setting a new record of over 50 C (122 F)
These temperatures will kill you if you stay out too long outside and if you have no air conditioning

26.07.2025 15:11 β€” πŸ‘ 11    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0
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Killing the only planet known to harbor life at ever faster rate

Little more than half a year into 2025, mankind has already hit Earth Overshoot Day, consuming resources at a rate that far outpaces the capacity to restore them.

www.dw.com/en/global-fo...

24.07.2025 10:51 β€” πŸ‘ 21    πŸ” 12    πŸ’¬ 0    πŸ“Œ 2
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Will this be the last Keeling curve upate from NOAA for CO2 at Mauna Loa?

June 2025: 429.61 ppm

This may be a tragic moment:

15.07.2025 00:41 β€” πŸ‘ 180    πŸ” 81    πŸ’¬ 13    πŸ“Œ 5

It's like something has changed over the Western Mediterranean....

Y-axis extension expected.

06.07.2025 13:27 β€” πŸ‘ 138    πŸ” 69    πŸ’¬ 6    πŸ“Œ 8

'Arctic sea ice extent is currently the *lowest* on record'.

See the melting over the past month:

04.07.2025 15:47 β€” πŸ‘ 64    πŸ” 28    πŸ’¬ 3    πŸ“Œ 3
Map from the Climate Shift Index of Europe, showing that the current heat wave over much of Western Europe is 4-5 times more likely due to climate change.

Map from the Climate Shift Index of Europe, showing that the current heat wave over much of Western Europe is 4-5 times more likely due to climate change.

A lot of media are covering Europe’s heatwave πŸ”₯ but few are connecting it to the climate crisis.

Tools like the Climate Shift Index show this heatwave is up to 5x 😱 more likely because of climate change. That context matters.

csi.climatecentral.org/climate-shif...

01.07.2025 06:38 β€” πŸ‘ 154    πŸ” 96    πŸ’¬ 7    πŸ“Œ 5
The CERES data are shown from 2001 to 2023. The CMIP6 data are shown from 2000 to 2030. All EEI are given as 12-month running means. CMIP6 model mean is shown by a thick black line and individual models are shown in thin gray lines. Only one ensemble member for each of the models is shown.

The CERES data are shown from 2001 to 2023. The CMIP6 data are shown from 2000 to 2030. All EEI are given as 12-month running means. CMIP6 model mean is shown by a thick black line and individual models are shown in thin gray lines. Only one ensemble member for each of the models is shown.

Data from CERES show that from 2001 to 2023, Earth absorbed more energy than any CMIP6 model predicted.

Models with ECS < 2.5Β°C fail to match observed LW & SW trends (LW↓, SW↑). This means future warming may be closer to higher-sensitivity projections.

doi.org/10.1126/scie...

01.07.2025 02:26 β€” πŸ‘ 32    πŸ” 21    πŸ’¬ 1    πŸ“Œ 5
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The drought in Europe is bound to cause food shortages as it continues unabated. I wonder whether mankind will wake up & smell the coffee, whilst coffee still exists.

30.06.2025 07:31 β€” πŸ‘ 75    πŸ” 32    πŸ’¬ 5    πŸ“Œ 1

Europeans are kept completely oblivious about the rate of summer warming.

Gross negligence from those responsible to keep us informed and safe.

28.06.2025 16:29 β€” πŸ‘ 170    πŸ” 96    πŸ’¬ 8    πŸ“Œ 9
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Meanwhile, everywhere: "Things aren't just getting worse. They are getting worse faster."

The Extreme Weather Report, Jun 26, 2025.

26.06.2025 21:10 β€” πŸ‘ 220    πŸ” 149    πŸ’¬ 7    πŸ“Œ 37

Seems important:

All ('IPCC') CMIP6 models are completely unable to reproduce what NASA satellites observed!

The rate of global warming (starting with Earth's Energy Imbalance and now surface air temperature) has more than doubled!

17.06.2025 12:04 β€” πŸ‘ 137    πŸ” 66    πŸ’¬ 8    πŸ“Œ 13

Electric or acoustic?

01.06.2025 22:42 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

COβ‚‚ at Mauna Loa just reached a monthly average of >430 ppm for the first time.

That's possibly higher than in over 3.3 million years.

The global RATE of increase is off the chart.

It's hard to exaggerate how unprecedented this is!

01.06.2025 19:59 β€” πŸ‘ 202    πŸ” 144    πŸ’¬ 12    πŸ“Œ 17
Cartoon entitled "Road Positioning" and subtitled "Times when it might be safer to cycle in the middle of the lane". There are four illustrated examples

1. Approaching road narrowings where it would be unsafe for drivers to overtake e.g. traffic islands etc

2. In slower-moving traffic. Keeps you visible. You can move over to the left again if the traffic speeds up.

3. Where there are parked cars and a car door might be opened.

4. On quiet roads. Keeps you away from various hazards found in the gutter.

Cartoon entitled "Road Positioning" and subtitled "Times when it might be safer to cycle in the middle of the lane". There are four illustrated examples 1. Approaching road narrowings where it would be unsafe for drivers to overtake e.g. traffic islands etc 2. In slower-moving traffic. Keeps you visible. You can move over to the left again if the traffic speeds up. 3. Where there are parked cars and a car door might be opened. 4. On quiet roads. Keeps you away from various hazards found in the gutter.

People who cycle are often accused of cycling "in the middle of the road".

What they really mean of course is cycling in the middle of the lane, and there are lots of good reasons why people do this, explained succinctly in this @davewalker.bsky.social cartoon for @cyclinguk.bsky.social

19.05.2025 08:23 β€” πŸ‘ 74    πŸ” 34    πŸ’¬ 2    πŸ“Œ 2
a mangled Caution Flexpost with tire tracks behind it in a bike lane

a mangled Caution Flexpost with tire tracks behind it in a bike lane

wear bright clothing so drivers can see you.

16.05.2025 14:44 β€” πŸ‘ 429    πŸ” 93    πŸ’¬ 10    πŸ“Œ 14

Quite possibly the biggest climate story of the year (especially when we look back on this in a few years' time)

For the first time on record, China's emissions are falling due to clean energy growth, not slow power demand...

15.05.2025 06:17 β€” πŸ‘ 744    πŸ” 294    πŸ’¬ 11    πŸ“Œ 16

@americanfietser.com what's your current solution?

05.05.2025 14:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

:D dont think that'd fit the bike handlebars though ;)

05.05.2025 14:25 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The fun is the lack of labels 😎 and the waiting for the results

04.05.2025 18:27 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@bsdtec is following 19 prominent accounts