Robert Osfield
@robertosfield.bsky.social
Project lead of open source VulkanSceneGraph and OpenSceneGraph projects, software consultant, runner, tech transition tracker and family man.
Really encouraging news from China and India, with coal power dropping. This is a win for air pollution and starting to slow the rise in CO2.
If it weren't for the exponential rise in Renewables in both countries we could just label this a blip, with them it's looking more like a turning point.
If it weren't for the exponential rise in Renewables in both countries we could just label this a blip, with them it's looking more like a turning point.
NEW – Analysis: Coal power drops in China and India for first time in 52 years after clean-energy records | @laurimyllyvirta.bsky.social
Read here: buff.ly/WqnAVhP
Read here: buff.ly/WqnAVhP
January 13, 2026 at 10:14 AM
Really encouraging news from China and India, with coal power dropping. This is a win for air pollution and starting to slow the rise in CO2.
If it weren't for the exponential rise in Renewables in both countries we could just label this a blip, with them it's looking more like a turning point.
If it weren't for the exponential rise in Renewables in both countries we could just label this a blip, with them it's looking more like a turning point.
Reposted by Robert Osfield
The number of Canadian vehicles entering the US via the Peace Arch and Pacific Highway border crossings has declined by roughly 37%
January 12, 2026 at 7:14 PM
The number of Canadian vehicles entering the US via the Peace Arch and Pacific Highway border crossings has declined by roughly 37%
Best use of hydrogen? Explosive demos of how bad an idea it is to have in our homes!
I'm really glad we're replaced our gas hob with induction hob and heating/hot water gas combi boiler with a heat-pump.
Cheaper to run but crucially no toxic emissions and no leak and associated combustion risk.
I'm really glad we're replaced our gas hob with induction hob and heating/hot water gas combi boiler with a heat-pump.
Cheaper to run but crucially no toxic emissions and no leak and associated combustion risk.
This is the short edit.
Find the full stress test on our YouTube 👉 www.youtube.com/watch?v=asiY...
Find the full stress test on our YouTube 👉 www.youtube.com/watch?v=asiY...
We blew up a kitchen. For science. 💥 Hydrogen vs Methane Gas Leak Test
YouTube video by Octopus Energy
www.youtube.com
January 9, 2026 at 12:27 PM
Best use of hydrogen? Explosive demos of how bad an idea it is to have in our homes!
I'm really glad we're replaced our gas hob with induction hob and heating/hot water gas combi boiler with a heat-pump.
Cheaper to run but crucially no toxic emissions and no leak and associated combustion risk.
I'm really glad we're replaced our gas hob with induction hob and heating/hot water gas combi boiler with a heat-pump.
Cheaper to run but crucially no toxic emissions and no leak and associated combustion risk.
400W/kg and 5 minute charging for solid battery, well at least that's the claim from Donut Lab's promo video:
www.youtube.com/watch?v=Y-aP...
Independent testing will be when we find out whether it's hype and hot air or genuinely game changing.
eVTOL and eSTOL begin to get compelling ranges...
www.youtube.com/watch?v=Y-aP...
Independent testing will be when we find out whether it's hype and hot air or genuinely game changing.
eVTOL and eSTOL begin to get compelling ranges...
World's First All-Solid-State Battery in Production Vehicles | Donut Battery
YouTube video by Donut Lab
www.youtube.com
January 8, 2026 at 4:07 PM
400W/kg and 5 minute charging for solid battery, well at least that's the claim from Donut Lab's promo video:
www.youtube.com/watch?v=Y-aP...
Independent testing will be when we find out whether it's hype and hot air or genuinely game changing.
eVTOL and eSTOL begin to get compelling ranges...
www.youtube.com/watch?v=Y-aP...
Independent testing will be when we find out whether it's hype and hot air or genuinely game changing.
eVTOL and eSTOL begin to get compelling ranges...
Reposted by Robert Osfield
Graphics Programming weekly - Issue 422 - January 4th, 2025 www.jendrikillner.com/post/graphic...
January 7, 2026 at 4:03 PM
Graphics Programming weekly - Issue 422 - January 4th, 2025 www.jendrikillner.com/post/graphic...
Reposted by Robert Osfield
My "How to Vulkan in 2026" @vulkan.org #Vulkan guide is now publicly available at www.howtovulkan.com
I still consider it a preview, though I'm mostly happy with it and only plan on changing minor things and incorporating some feedback.
I still consider it a preview, though I'm mostly happy with it and only plan on changing minor things and incorporating some feedback.
How to Vulkan in 2026 - How to Vulkan
How to write Vulkan graphics code in 2026
www.howtovulkan.com
January 3, 2026 at 6:15 PM
My "How to Vulkan in 2026" @vulkan.org #Vulkan guide is now publicly available at www.howtovulkan.com
I still consider it a preview, though I'm mostly happy with it and only plan on changing minor things and incorporating some feedback.
I still consider it a preview, though I'm mostly happy with it and only plan on changing minor things and incorporating some feedback.
Reposted by Robert Osfield
The deaths came as the Trump administration ramped up immigration enforcement, detaining a record number of people
2025 was ICE’s deadliest year in two decades. Here are the 31 people who died in custody
www.theguardian.com
January 7, 2026 at 2:16 AM
The deaths came as the Trump administration ramped up immigration enforcement, detaining a record number of people
@smmt-ukauto.bsky.social have published there UK new car registrations for December 2025. Again the BEV market share peaked above the 30% market share line.
Growth through 2025 stayed pretty close to the Later S-Curve, suggesting a 50% market share mid 2027.
Growth through 2025 stayed pretty close to the Later S-Curve, suggesting a 50% market share mid 2027.
January 6, 2026 at 10:10 AM
@smmt-ukauto.bsky.social have published there UK new car registrations for December 2025. Again the BEV market share peaked above the 30% market share line.
Growth through 2025 stayed pretty close to the Later S-Curve, suggesting a 50% market share mid 2027.
Growth through 2025 stayed pretty close to the Later S-Curve, suggesting a 50% market share mid 2027.
Reposted by Robert Osfield
In the latest carbon budget, we revised...
* up land-use change emissions
* up the ocean sink (now takes up 29% of total emissions)
* down the land sink (now takes up 21% of total emissions)
* the "budget imbalance" now has zero trend
What does this mean?
www.nature.com/articles/s41...
1/
* up land-use change emissions
* up the ocean sink (now takes up 29% of total emissions)
* down the land sink (now takes up 21% of total emissions)
* the "budget imbalance" now has zero trend
What does this mean?
www.nature.com/articles/s41...
1/
January 5, 2026 at 10:30 AM
In the latest carbon budget, we revised...
* up land-use change emissions
* up the ocean sink (now takes up 29% of total emissions)
* down the land sink (now takes up 21% of total emissions)
* the "budget imbalance" now has zero trend
What does this mean?
www.nature.com/articles/s41...
1/
* up land-use change emissions
* up the ocean sink (now takes up 29% of total emissions)
* down the land sink (now takes up 21% of total emissions)
* the "budget imbalance" now has zero trend
What does this mean?
www.nature.com/articles/s41...
1/
Unfortunately we don't have an Open Energy Monitor kit on our heat pump so can't provide robust and accurate figures for max cold weather output.
It's -5.8°C here in the Trossachs so below the design temp of -4°C...
It's -5.8°C here in the Trossachs so below the design temp of -4°C...
January 4, 2026 at 9:27 AM
Unfortunately we don't have an Open Energy Monitor kit on our heat pump so can't provide robust and accurate figures for max cold weather output.
It's -5.8°C here in the Trossachs so below the design temp of -4°C...
It's -5.8°C here in the Trossachs so below the design temp of -4°C...
Reposted by Robert Osfield
It's technically true what they say: As a Flow Gas, Anthropogenic Methane wouldn't contribute much to global warming if emissions held steady for about 12 years. There's only one problem...
January 3, 2026 at 7:52 PM
It's technically true what they say: As a Flow Gas, Anthropogenic Methane wouldn't contribute much to global warming if emissions held steady for about 12 years. There's only one problem...
Reposted by Robert Osfield
Country 9 in global oil reserves has invaded country 1 and arrested its president. Country 7 is under sanctions and its refineries are being destroyed. Country 2 is facing off with country 6. And there are riots in country 3. But oil is only $60/bbl. Maybe oil is not as critical as it used to be?
January 3, 2026 at 6:38 PM
Country 9 in global oil reserves has invaded country 1 and arrested its president. Country 7 is under sanctions and its refineries are being destroyed. Country 2 is facing off with country 6. And there are riots in country 3. But oil is only $60/bbl. Maybe oil is not as critical as it used to be?
Happy New Year Folks :-)
2025 was our first full year as a de-carbonized household so we are now able to review all the monetary and carbon costs of having heat-pump, household battery, solar and an fully electric car.
Our running and carbon costs are now 63% & 93% lower than before transitioning!
2025 was our first full year as a de-carbonized household so we are now able to review all the monetary and carbon costs of having heat-pump, household battery, solar and an fully electric car.
Our running and carbon costs are now 63% & 93% lower than before transitioning!
January 2, 2026 at 3:40 PM
Happy New Year Folks :-)
2025 was our first full year as a de-carbonized household so we are now able to review all the monetary and carbon costs of having heat-pump, household battery, solar and an fully electric car.
Our running and carbon costs are now 63% & 93% lower than before transitioning!
2025 was our first full year as a de-carbonized household so we are now able to review all the monetary and carbon costs of having heat-pump, household battery, solar and an fully electric car.
Our running and carbon costs are now 63% & 93% lower than before transitioning!
Reposted by Robert Osfield
🥇2024 will hold onto 1st place for warmest year in the modern record. How *long* will this record last?
We don't know... but a safe bet, IMHO, is 3 years (i.e. 2027 likely to set a new record). Here's why👇
We don't know... but a safe bet, IMHO, is 3 years (i.e. 2027 likely to set a new record). Here's why👇
December 31, 2025 at 5:29 PM
🥇2024 will hold onto 1st place for warmest year in the modern record. How *long* will this record last?
We don't know... but a safe bet, IMHO, is 3 years (i.e. 2027 likely to set a new record). Here's why👇
We don't know... but a safe bet, IMHO, is 3 years (i.e. 2027 likely to set a new record). Here's why👇
Reposted by Robert Osfield
Graphics Programming weekly - Issue 421 - December 28th, 2025 www.jendrikillner.com/post/graphic...
December 30, 2025 at 3:30 PM
Graphics Programming weekly - Issue 421 - December 28th, 2025 www.jendrikillner.com/post/graphic...
Festive Greetings graphics coders!
I have wrapped up work on VulkanSceneGraph, vsgXchange and vsgExamples for the year and tagged developer releases of each.
I have created a forum post with details of changes: github.com/vsg-dev/Vulk...
I have wrapped up work on VulkanSceneGraph, vsgXchange and vsgExamples for the year and tagged developer releases of each.
I have created a forum post with details of changes: github.com/vsg-dev/Vulk...
VulkanSceneGraph v1.1.13, vsgXchange-v1.1.9 and vsgExamples v1.1.11 developer releases tagged · vsg-dev VulkanSceneGraph · Discussion #1644
Hi All, Thanks for all community testing and submissions before Christmas I came close to tagging new developer releases but didn't quite manage to resolve all the issues I wanted to tackle so had ...
github.com
December 30, 2025 at 4:50 PM
Festive Greetings graphics coders!
I have wrapped up work on VulkanSceneGraph, vsgXchange and vsgExamples for the year and tagged developer releases of each.
I have created a forum post with details of changes: github.com/vsg-dev/Vulk...
I have wrapped up work on VulkanSceneGraph, vsgXchange and vsgExamples for the year and tagged developer releases of each.
I have created a forum post with details of changes: github.com/vsg-dev/Vulk...
Reposted by Robert Osfield
Interesting. A couple months ago 2025 was tracking to be one of the lowest burn area years globally since 2012. But an uptick in wildfire burn area in Africa in recent weeks has put 2025 back toward the mean...
December 28, 2025 at 2:22 AM
Interesting. A couple months ago 2025 was tracking to be one of the lowest burn area years globally since 2012. But an uptick in wildfire burn area in Africa in recent weeks has put 2025 back toward the mean...
Reposted by Robert Osfield
reneweconomy.com.au/offshore-win...
Sea beds with offshore wind turbines have a greater Marine biodiversity with larger fish (2-3x larger in some species) 🐠🐟 more Coral 🪸 sponges
Sea beds with offshore wind turbines have a greater Marine biodiversity with larger fish (2-3x larger in some species) 🐠🐟 more Coral 🪸 sponges
reneweconomy.com.au
December 23, 2025 at 11:50 AM
reneweconomy.com.au/offshore-win...
Sea beds with offshore wind turbines have a greater Marine biodiversity with larger fish (2-3x larger in some species) 🐠🐟 more Coral 🪸 sponges
Sea beds with offshore wind turbines have a greater Marine biodiversity with larger fish (2-3x larger in some species) 🐠🐟 more Coral 🪸 sponges
Reposted by Robert Osfield
Graphics Programming weekly - Issue 420 - December 14h, 2025 www.jendrikillner.com/post/graphic...
December 18, 2025 at 2:14 PM
Graphics Programming weekly - Issue 420 - December 14h, 2025 www.jendrikillner.com/post/graphic...
I have only quickly scanned through the articles on the shift to EV and there are some oddities in there like the discussion on EVs on grid demand.
I've been an EV owner for a year now, and 75% of our charging is done overnight between 12:30am and 5:30am aligned with low demand not peak.
I've been an EV owner for a year now, and 75% of our charging is done overnight between 12:30am and 5:30am aligned with low demand not peak.
December 18, 2025 at 3:37 PM
I have only quickly scanned through the articles on the shift to EV and there are some oddities in there like the discussion on EVs on grid demand.
I've been an EV owner for a year now, and 75% of our charging is done overnight between 12:30am and 5:30am aligned with low demand not peak.
I've been an EV owner for a year now, and 75% of our charging is done overnight between 12:30am and 5:30am aligned with low demand not peak.
This research on modern household heat pump performance finds an average SCOP of 3.86, 40% better than older studies.
Our heat pump has achieved a SCOP of 3.85 so far this year.
Our heat pump has achieved a SCOP of 3.85 so far this year.
December 18, 2025 at 12:04 PM
This research on modern household heat pump performance finds an average SCOP of 3.86, 40% better than older studies.
Our heat pump has achieved a SCOP of 3.85 so far this year.
Our heat pump has achieved a SCOP of 3.85 so far this year.
@iea.org coal report "Analysis and forecast to 2030" suggests coal use is at it's peak and will fall slightly by the end of this decade:
www.iea.org/reports/coal...
Personally I suspect the rapid drop in cost of solar & batteries will drive a move from coal faster than the IEA forecasts.
www.iea.org/reports/coal...
Personally I suspect the rapid drop in cost of solar & batteries will drive a move from coal faster than the IEA forecasts.
December 17, 2025 at 4:47 PM
@iea.org coal report "Analysis and forecast to 2030" suggests coal use is at it's peak and will fall slightly by the end of this decade:
www.iea.org/reports/coal...
Personally I suspect the rapid drop in cost of solar & batteries will drive a move from coal faster than the IEA forecasts.
www.iea.org/reports/coal...
Personally I suspect the rapid drop in cost of solar & batteries will drive a move from coal faster than the IEA forecasts.
Reposted by Robert Osfield
If the gas networks still can't contain methane after more than a century of practice, why should we trust them with hydrogen?
December 17, 2025 at 11:22 AM
If the gas networks still can't contain methane after more than a century of practice, why should we trust them with hydrogen?
Reposted by Robert Osfield
NSF is about to dismantle NCAR at Russell Vought's direction to protect the fossil fuel industry. It's hard to communicate just how much NCAR does, so let's take a look: I've never worked at NCAR, and I've worked with NCAR researchers once ever. What scientific discoveries has NCAR made possible? 👇
December 17, 2025 at 4:14 AM
NSF is about to dismantle NCAR at Russell Vought's direction to protect the fossil fuel industry. It's hard to communicate just how much NCAR does, so let's take a look: I've never worked at NCAR, and I've worked with NCAR researchers once ever. What scientific discoveries has NCAR made possible? 👇
So far this year our a heat-pump has achieved a SCOP of 3.84 for combined hot water and heating. A bit above the average of a 3.78 for 25 year old house is seems.
Insulation level wise we probably fit the "Fully insulated, floors and loft category, again we beat the average of 3.81 by a smidgen.
Insulation level wise we probably fit the "Fully insulated, floors and loft category, again we beat the average of 3.81 by a smidgen.
This has also been the result of the analysis of the data from @openenergymon.bsky.social Heatpumpmonitor.org youtu.be/SiHtzDNWAo4?...
December 16, 2025 at 9:55 AM
So far this year our a heat-pump has achieved a SCOP of 3.84 for combined hot water and heating. A bit above the average of a 3.78 for 25 year old house is seems.
Insulation level wise we probably fit the "Fully insulated, floors and loft category, again we beat the average of 3.81 by a smidgen.
Insulation level wise we probably fit the "Fully insulated, floors and loft category, again we beat the average of 3.81 by a smidgen.