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
bicycle as primary transport
Brompton & mountain bike & mountain e-bike.
unix/linux sysadmin, more ops than dev.
Bookish. Concerned about AGW, biome, enshittification
Reposted by f451
Have you ever seen a bike lane sweeper - pulled behind a bike?
Volunteers in Kirkland have a new tool that attaches to the back of an e-bike. It's good for protected bike lanes, sidewalks, and narrow trails.
My @kuow.org story: www.kuow.org/stories/clea...
Volunteers in Kirkland have a new tool that attaches to the back of an e-bike. It's good for protected bike lanes, sidewalks, and narrow trails.
My @kuow.org story: www.kuow.org/stories/clea...
November 28, 2025 at 6:21 PM
Have you ever seen a bike lane sweeper - pulled behind a bike?
Volunteers in Kirkland have a new tool that attaches to the back of an e-bike. It's good for protected bike lanes, sidewalks, and narrow trails.
My @kuow.org story: www.kuow.org/stories/clea...
Volunteers in Kirkland have a new tool that attaches to the back of an e-bike. It's good for protected bike lanes, sidewalks, and narrow trails.
My @kuow.org story: www.kuow.org/stories/clea...
Reposted by f451
Are we headed for an actual climate disaster? "Growth of GHG forcing has diverged dramatically from that scenario (RCP2.6), with reality being close to the extreme RCP8.5 scenario"
This is catastrophic. RCP8.5 will basically wipe out civilisation as we know it
jimehansen.substack.com/p/warning-th...
This is catastrophic. RCP8.5 will basically wipe out civilisation as we know it
jimehansen.substack.com/p/warning-th...
November 21, 2025 at 8:31 PM
Are we headed for an actual climate disaster? "Growth of GHG forcing has diverged dramatically from that scenario (RCP2.6), with reality being close to the extreme RCP8.5 scenario"
This is catastrophic. RCP8.5 will basically wipe out civilisation as we know it
jimehansen.substack.com/p/warning-th...
This is catastrophic. RCP8.5 will basically wipe out civilisation as we know it
jimehansen.substack.com/p/warning-th...
Reposted by f451
Compare and contrast the Government language.
£3,750 EV grant on a £35k car: ‘helping families’.
Cycle to Work: ‘subsidising leisure’.
And yet cycling delivers TEN TIMES the impact of electric cars for reaching net zero. It’s almost like narrative, not data, is driving policy.
£3,750 EV grant on a £35k car: ‘helping families’.
Cycle to Work: ‘subsidising leisure’.
And yet cycling delivers TEN TIMES the impact of electric cars for reaching net zero. It’s almost like narrative, not data, is driving policy.
November 21, 2025 at 9:45 AM
Compare and contrast the Government language.
£3,750 EV grant on a £35k car: ‘helping families’.
Cycle to Work: ‘subsidising leisure’.
And yet cycling delivers TEN TIMES the impact of electric cars for reaching net zero. It’s almost like narrative, not data, is driving policy.
£3,750 EV grant on a £35k car: ‘helping families’.
Cycle to Work: ‘subsidising leisure’.
And yet cycling delivers TEN TIMES the impact of electric cars for reaching net zero. It’s almost like narrative, not data, is driving policy.
Reposted by f451
All that is gold does not glitter,
Not all who wander are lost.
Server refused the connection:
Port 22 no route to host.
Not all who wander are lost.
Server refused the connection:
Port 22 no route to host.
June 20, 2025 at 9:03 AM
All that is gold does not glitter,
Not all who wander are lost.
Server refused the connection:
Port 22 no route to host.
Not all who wander are lost.
Server refused the connection:
Port 22 no route to host.
Reposted by f451
sometimes you see a font and suddenly need to rice emacs again
Monaspace
An innovative superfamily of fonts for code
monaspace.githubnext.com
November 14, 2025 at 5:36 PM
sometimes you see a font and suddenly need to rice emacs again
Reposted by f451
Breaking! Ducks discovered on Planet Jupiter!
November 12, 2025 at 7:48 PM
Breaking! Ducks discovered on Planet Jupiter!
Reposted by f451
Reposted by f451
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 1.9°C warmer than before we began burning fossil fuels.
#climatecrisis #ClimateEmergency #auspol www.lyrebirddreaming.com/post/we-re-t...
#climatecrisis #ClimateEmergency #auspol www.lyrebirddreaming.com/post/we-re-t...
We’re Touching 1.9°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 ...
www.lyrebirddreaming.com
October 20, 2025 at 12:29 AM
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 1.9°C warmer than before we began burning fossil fuels.
#climatecrisis #ClimateEmergency #auspol www.lyrebirddreaming.com/post/we-re-t...
#climatecrisis #ClimateEmergency #auspol www.lyrebirddreaming.com/post/we-re-t...
Reposted by f451
Remember this one? “Humans aren’t very efficient movers—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
The Most Efficient Traveler Isn’t a Bird or a Fish—It’s You on a Bike
A famous graphic, now updated, compares locomotion in the animal kingdom
www.scientificamerican.com
October 16, 2025 at 11:24 PM
Remember this one? “Humans aren’t very efficient movers—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
Reposted by f451
🚨 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 3°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/
We should assume and prepare for the worst, as there is a non-zero chance of 3°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/
October 13, 2025 at 12:31 PM
🚨 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 3°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/
We should assume and prepare for the worst, as there is a non-zero chance of 3°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/
Reposted by f451
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.
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.
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
www.theguardian.com
October 8, 2025 at 10:47 AM
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.
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.
Reposted by f451
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...
To (almost) no-one’s surprise, multiple sources of data agree on the long-term trends in UK temperatures.
climatelabbook.substack.com/p/monitoring...
Monitoring changes in UK temperature
Multiple sources of data agree on long-term observed trends
climatelabbook.substack.com
October 8, 2025 at 8:23 AM
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...
To (almost) no-one’s surprise, multiple sources of data agree on the long-term trends in UK temperatures.
climatelabbook.substack.com/p/monitoring...
Reposted by f451
I just updated this NASA CERES graph. The regional level of Absorbed Solar Radiation increased by 4.2 W/m² in 20 years!!
That's more than the global greenhouse gas forcing increase since 1750!
The 2 W/m² Net Flux increase indicates that there is a lot more regional warming in the pipeline.
That's more than the global greenhouse gas forcing increase since 1750!
The 2 W/m² Net Flux increase indicates that there is a lot more regional warming in the pipeline.
October 7, 2025 at 12:18 PM
I just updated this NASA CERES graph. The regional level of Absorbed Solar Radiation increased by 4.2 W/m² in 20 years!!
That's more than the global greenhouse gas forcing increase since 1750!
The 2 W/m² Net Flux increase indicates that there is a lot more regional warming in the pipeline.
That's more than the global greenhouse gas forcing increase since 1750!
The 2 W/m² Net Flux increase indicates that there is a lot more regional warming in the pipeline.
Reposted by f451
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 🔔 to get a notification when we go live
1/2
youtube.com/live/BNZ_biC...
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 🔔 to get a notification when we go live
1/2
youtube.com/live/BNZ_biC...
September 21, 2025 at 10:02 AM
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 🔔 to get a notification when we go live
1/2
youtube.com/live/BNZ_biC...
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 🔔 to get a notification when we go live
1/2
youtube.com/live/BNZ_biC...
Reposted by f451
The image shows that the global sea ice area was 2.31 million km² below the 1981-2010 mean on September 1, 2025, a deviation from 1981-2010 of -3.76σ. arctic-news.blogspot.com/2025/09/arct...
September 3, 2025 at 9:01 AM
The image shows that the global sea ice area was 2.31 million km² below the 1981-2010 mean on September 1, 2025, a deviation from 1981-2010 of -3.76σ. arctic-news.blogspot.com/2025/09/arct...
Reposted by f451
“Microsoft says U.S. law takes precedence over Canadian data sovereignty”
… or how to lose government contracts all over the world in one easy step. 🖕🏾🖕🏾
www.digitaljournal.com/tech-science...
… or how to lose government contracts all over the world in one easy step. 🖕🏾🖕🏾
www.digitaljournal.com/tech-science...
Microsoft says U.S. law takes precedence over Canadian data sovereignty
Microsoft representative says US CLOUD Act comes before other country's sovereignty.
www.digitaljournal.com
August 22, 2025 at 8:56 AM
“Microsoft says U.S. law takes precedence over Canadian data sovereignty”
… or how to lose government contracts all over the world in one easy step. 🖕🏾🖕🏾
www.digitaljournal.com/tech-science...
… or how to lose government contracts all over the world in one easy step. 🖕🏾🖕🏾
www.digitaljournal.com/tech-science...
Reposted by f451
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
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
BREAKING: Sirnak Silopi in Turkey has set a new temperature record after recording 50.0ºC this afternoon.
This is an extreme level of heat.
This is an extreme level of heat.
July 26, 2025 at 3:11 PM
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
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
Reposted by f451
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...
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...
July 24, 2025 at 10:51 AM
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...
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...
Reposted by f451
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:
June 2025: 429.61 ppm
This may be a tragic moment:
July 15, 2025 at 12:41 AM
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:
June 2025: 429.61 ppm
This may be a tragic moment:
Reposted by f451
It's like something has changed over the Western Mediterranean....
Y-axis extension expected.
Y-axis extension expected.
July 6, 2025 at 1:27 PM
It's like something has changed over the Western Mediterranean....
Y-axis extension expected.
Y-axis extension expected.
Reposted by f451
'Arctic sea ice extent is currently the *lowest* on record'.
See the melting over the past month:
See the melting over the past month:
July 4, 2025 at 3:47 PM
'Arctic sea ice extent is currently the *lowest* on record'.
See the melting over the past month:
See the melting over the past month:
Reposted by f451
A lot of media are covering Europe’s heatwave 🔥 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...
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...
July 1, 2025 at 6:38 AM
A lot of media are covering Europe’s heatwave 🔥 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...
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...
Reposted by f451
Data from CERES show that from 2001 to 2023, Earth absorbed more energy than any CMIP6 model predicted.
Models with ECS < 2.5°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...
Models with ECS < 2.5°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...
July 1, 2025 at 2:26 AM
Data from CERES show that from 2001 to 2023, Earth absorbed more energy than any CMIP6 model predicted.
Models with ECS < 2.5°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...
Models with ECS < 2.5°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...
Reposted by f451
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.
June 30, 2025 at 7:31 AM
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.