Keith Alexander
@keithalexander.bsky.social
Interested in climate & the environment
It’s funny how different retrofit seems to be in the US from in the UK. Of course the core ideas of insulation, air tightness, ventilation and electrification are the same, but the dominant technologies, terminology and metrics are different. podcasts.apple.com/gb/podcast/t...
Alan Howze and a Whole House Retrofit
Podcast Episode · The Retrofit Podcast · 19/05/2023 · 1h 1m
podcasts.apple.com
November 11, 2025 at 9:02 PM
It’s funny how different retrofit seems to be in the US from in the UK. Of course the core ideas of insulation, air tightness, ventilation and electrification are the same, but the dominant technologies, terminology and metrics are different. podcasts.apple.com/gb/podcast/t...
AEG’s website is shamelessly replete with AI slop 😳
November 7, 2025 at 11:35 PM
AEG’s website is shamelessly replete with AI slop 😳
Fly by private jet and you don’t pay tax on the fuel, and you don’t pay air passenger duty youtube.com/shorts/feOKF...
It's time for a proper tax on private jets
YouTube video by Possible
youtube.com
November 5, 2025 at 8:21 PM
Fly by private jet and you don’t pay tax on the fuel, and you don’t pay air passenger duty youtube.com/shorts/feOKF...
Reposted by Keith Alexander
“People often think of climate change as a separate bucket at the end of a long row of other buckets of problems we're trying to fix that are wrong in the world. […] The reason we care about climate change is that it's the hole in every bucket." @katharinehayhoe.com
If you take the time to read the whole Gates memo (which I did), the bulk of the content was mostly solid and encouraging. Really!
It was the FRAME that was off--very off, from the first line.
And when your framing is off, then how you make decisions and set priorities is off. THAT'S the problem.
It was the FRAME that was off--very off, from the first line.
And when your framing is off, then how you make decisions and set priorities is off. THAT'S the problem.
October 30, 2025 at 4:00 PM
“People often think of climate change as a separate bucket at the end of a long row of other buckets of problems we're trying to fix that are wrong in the world. […] The reason we care about climate change is that it's the hole in every bucket." @katharinehayhoe.com
If you’re going to do some insulating or air tightness/draught proofing, I recommend buying or borrowing a thermal image camera if you can.
It’s useful not just for identifying areas to insulate, but checking your work for defects that are often not obvious to the naked eye.
It’s useful not just for identifying areas to insulate, but checking your work for defects that are often not obvious to the naked eye.
October 30, 2025 at 1:26 PM
If you’re going to do some insulating or air tightness/draught proofing, I recommend buying or borrowing a thermal image camera if you can.
It’s useful not just for identifying areas to insulate, but checking your work for defects that are often not obvious to the naked eye.
It’s useful not just for identifying areas to insulate, but checking your work for defects that are often not obvious to the naked eye.
Reposted by Keith Alexander
After years of research, scientist Leonid Pshenichnov concluded Russia + China cannot continue fishing krill, the main food source of many marine creatures, at current rates without risking breakdown of entire ocean ecosystems. Russia had him arrested:
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Russia arrests Ukrainian biologist for backing curbs on Antarctic krill fishing
‘Trumped-up’ charges spark diplomatic row as scientists express fears for health of 70-year-old Leonid Pshenichnov
www.theguardian.com
October 28, 2025 at 1:11 PM
After years of research, scientist Leonid Pshenichnov concluded Russia + China cannot continue fishing krill, the main food source of many marine creatures, at current rates without risking breakdown of entire ocean ecosystems. Russia had him arrested:
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Gas meter removal day today 🥳🐙⚡️
October 28, 2025 at 7:20 AM
Gas meter removal day today 🥳🐙⚡️
Reposted by Keith Alexander
But seriously: I'm prepping for a panel on Abundance and climate and going down the rabbit hole of documenting everything so I can cite it, and I'm finding things are SO much worse than I even thought.
Did you know that the Charles Koch Foundation was a sponser of Abundance 2024?
No, really.
Did you know that the Charles Koch Foundation was a sponser of Abundance 2024?
No, really.
October 27, 2025 at 8:39 PM
But seriously: I'm prepping for a panel on Abundance and climate and going down the rabbit hole of documenting everything so I can cite it, and I'm finding things are SO much worse than I even thought.
Did you know that the Charles Koch Foundation was a sponser of Abundance 2024?
No, really.
Did you know that the Charles Koch Foundation was a sponser of Abundance 2024?
No, really.
Reposted by Keith Alexander
WOW: "Covid-19 vaccines... set off a powerful alarm that rallies the human immune system against cancer and nearly doubles the median survival length of patients, according to a new retrospective study by researchers at the University of Texas MD Anderson Cancer Center & the University of Florida."
NEW STUDY PUBLISHED IN NATURE: People who got an mRNA COVID vaccine within ~3 months before or after starting immunotherapy for cancer lived longer overall than those who didn’t get the vaccine.
www.washingtonpost.com/science/2025...
www.washingtonpost.com/science/2025...
October 23, 2025 at 11:54 PM
WOW: "Covid-19 vaccines... set off a powerful alarm that rallies the human immune system against cancer and nearly doubles the median survival length of patients, according to a new retrospective study by researchers at the University of Texas MD Anderson Cancer Center & the University of Florida."
Raggling/chasing rigid woodfibre. Palm router worked well for cutting a fixed depth, and creates loose insulation collected in the vacuum, which might come in handy elsewhere. #retrofit
October 22, 2025 at 4:59 PM
Raggling/chasing rigid woodfibre. Palm router worked well for cutting a fixed depth, and creates loose insulation collected in the vacuum, which might come in handy elsewhere. #retrofit
Solar power but make it bad for the environment
A US tech bro corp in the US has decided the night sky should go away. They've made that decision for everyone on Earth.
Naturally they've named the first searing orbital array (many times brighter than the moon) after Eärendil, the light bearer, from Tolkien's work
www.space.com/space-explor...
Naturally they've named the first searing orbital array (many times brighter than the moon) after Eärendil, the light bearer, from Tolkien's work
www.space.com/space-explor...
Company's plan to launch 4,000 space mirrors alarms scientists
Reflect Orbital says their light-on-demand idea has generated significant interest from commercial and government customers.
www.space.com
October 22, 2025 at 4:07 PM
Solar power but make it bad for the environment
Reposted by Keith Alexander
📢 Episode 4 is out now!
Last year, Spain was hit by one of the worst disasters in its history
It was driven by climate change
But it ended up boosting climate deniers...
How can the world stop this from happening again?
Listen now: overshootpod.com
Last year, Spain was hit by one of the worst disasters in its history
It was driven by climate change
But it ended up boosting climate deniers...
How can the world stop this from happening again?
Listen now: overshootpod.com
October 20, 2025 at 9:38 AM
📢 Episode 4 is out now!
Last year, Spain was hit by one of the worst disasters in its history
It was driven by climate change
But it ended up boosting climate deniers...
How can the world stop this from happening again?
Listen now: overshootpod.com
Last year, Spain was hit by one of the worst disasters in its history
It was driven by climate change
But it ended up boosting climate deniers...
How can the world stop this from happening again?
Listen now: overshootpod.com
This is really good @overshootpod.bsky.social
@laurielaybourn.bsky.social
podcasts.apple.com/gb/podcast/o...
@laurielaybourn.bsky.social
podcasts.apple.com/gb/podcast/o...
Overshoot: Navigating a world beyond 1.5°C
Science Podcast · In 2015, the world agreed to limit global heating to 1.5°C. Ten years later, temperatures are spiralling beyond this and climate chaos is wreaking havoc across the globe.
How did w...
podcasts.apple.com
October 19, 2025 at 10:06 PM
This is really good @overshootpod.bsky.social
@laurielaybourn.bsky.social
podcasts.apple.com/gb/podcast/o...
@laurielaybourn.bsky.social
podcasts.apple.com/gb/podcast/o...
Reposted by Keith Alexander
Funny how when it comes to phasing out fossil fuels, there was so much concern about a just transition for workers that they didn’t really want to encourage any transition at all, but when it comes to the prospect of “AI” eliminating vast numbers of jobs…
October 19, 2025 at 12:06 PM
Funny how when it comes to phasing out fossil fuels, there was so much concern about a just transition for workers that they didn’t really want to encourage any transition at all, but when it comes to the prospect of “AI” eliminating vast numbers of jobs…
A #RetroFit #airtightness technique I’ve been using with areas that are awkwardly lumpy to tape, and with gaps too big to paint with liquid membrane, is to stuff the gaps with little clumps of woodfibre and then paint with liquid membrane.
October 19, 2025 at 11:10 AM
A #RetroFit #airtightness technique I’ve been using with areas that are awkwardly lumpy to tape, and with gaps too big to paint with liquid membrane, is to stuff the gaps with little clumps of woodfibre and then paint with liquid membrane.
Reposted by Keith Alexander
Yes the CO2 rise 2023-2024 was faster than we predicted at Mauna Loa and was a record rise there - now the WMO confirm the global mean rise was also a record
Also the rate of CO2 rise is now above the IPCC scenarios that limit global warming to 1.5C
www.carbonbrief.org/met-office-a...
Also the rate of CO2 rise is now above the IPCC scenarios that limit global warming to 1.5C
www.carbonbrief.org/met-office-a...
October 18, 2025 at 7:18 PM
Yes the CO2 rise 2023-2024 was faster than we predicted at Mauna Loa and was a record rise there - now the WMO confirm the global mean rise was also a record
Also the rate of CO2 rise is now above the IPCC scenarios that limit global warming to 1.5C
www.carbonbrief.org/met-office-a...
Also the rate of CO2 rise is now above the IPCC scenarios that limit global warming to 1.5C
www.carbonbrief.org/met-office-a...
“This extra health cost was NZ$3,200 (£1,400) annually for each modern wood stove and as much as NZ$26,800 (£11,500) for each open fire”
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Wood burning and gas cooking hugely costly to healthcare systems, New Zealand study finds
Experts suggest replacing gas hobs with electric ones, saying it is a win–win for health and the climate
www.theguardian.com
October 18, 2025 at 7:42 PM
“This extra health cost was NZ$3,200 (£1,400) annually for each modern wood stove and as much as NZ$26,800 (£11,500) for each open fire”
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Reposted by Keith Alexander
Why are they even looking for more???
This is another 475 million tonnes of CO2 !!!
"there’s no room for new fields to be opened. When you’re in a hole, you have to stop digging.” - Dr. Greg Muttitt, @iisd.org
#ClimateEmergency
This is another 475 million tonnes of CO2 !!!
"there’s no room for new fields to be opened. When you’re in a hole, you have to stop digging.” - Dr. Greg Muttitt, @iisd.org
#ClimateEmergency
October 18, 2025 at 8:16 AM
Why are they even looking for more???
This is another 475 million tonnes of CO2 !!!
"there’s no room for new fields to be opened. When you’re in a hole, you have to stop digging.” - Dr. Greg Muttitt, @iisd.org
#ClimateEmergency
This is another 475 million tonnes of CO2 !!!
"there’s no room for new fields to be opened. When you’re in a hole, you have to stop digging.” - Dr. Greg Muttitt, @iisd.org
#ClimateEmergency
"Despite the communities efforts, their carbon footprint sits at 7tCO2, a long way from net zero. Flights represent the highest share of emissions. Proof that change will require a major shift in attitudes, even in an eco village."
Findhorn will always have exceptional architecture, but it’s exciting to think we’re on the way to it no longer being exceptionally low carbon, as the rest of Scotland adopts technologies that Findhorn pioneered.
youtu.be/yVwrndbv-Xc?...
youtu.be/yVwrndbv-Xc?...
Pioneering Scottish eco-village masters art of sustainable living • FRANCE 24 English
YouTube video by FRANCE 24 English
youtube.com
October 17, 2025 at 10:14 AM
"Despite the communities efforts, their carbon footprint sits at 7tCO2, a long way from net zero. Flights represent the highest share of emissions. Proof that change will require a major shift in attitudes, even in an eco village."
Findhorn will always have exceptional architecture, but it’s exciting to think we’re on the way to it no longer being exceptionally low carbon, as the rest of Scotland adopts technologies that Findhorn pioneered.
youtu.be/yVwrndbv-Xc?...
youtu.be/yVwrndbv-Xc?...
Pioneering Scottish eco-village masters art of sustainable living • FRANCE 24 English
YouTube video by FRANCE 24 English
youtube.com
October 17, 2025 at 9:16 AM
Findhorn will always have exceptional architecture, but it’s exciting to think we’re on the way to it no longer being exceptionally low carbon, as the rest of Scotland adopts technologies that Findhorn pioneered.
youtu.be/yVwrndbv-Xc?...
youtu.be/yVwrndbv-Xc?...
Wow, official tests show PHEVs environmental performance improving, but in the real world they are actually becoming more polluting.
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Plug-in hybrids pollute almost as much as petrol cars, report finds
Analysis of 800,000 European cars found real-world pollution from plug-in hybrids nearly five times greater than lab tests
www.theguardian.com
October 16, 2025 at 7:24 AM
Wow, official tests show PHEVs environmental performance improving, but in the real world they are actually becoming more polluting.
www.theguardian.com/environment/...
www.theguardian.com/environment/...