Philip Sargent
@philipsargent.bsky.social
Cambridge UK: materials, software, energy; and beer. Was engineer at DECC (then BEIS) nearly 4.5 years.
https://www.researchgate.net/profile/Philip-Sargent-2
@[email protected]
https://www.researchgate.net/profile/Philip-Sargent-2
@[email protected]
Pinned
Calcarea, Aurelia partner on ocean-based carbon capture for bulk carriers
Calcarea and Aurelia Design have agreed to develop ocean-based carbon capture technology for use in commercial shipping.
www.ship-technology.com
Aha, so this CO2 capture ship stuff is really just ocean-liming tech in a new guise. But using "free" spare heat and already-pumped seawater. Since ocean liming is already quite cheap, this looks like it might be really quite affordable.
www.ship-technology.com/news/calcare...
www.ship-technology.com/news/calcare...
Reposted by Philip Sargent
A few years back, Pinker and Lomborg where examples for me. I *loved* the Sceptical Environmentalist!
But Lomborg went on to cherry picking and often straight-up lying about energy in a way that must be conscious, and Pinker fancies himself knowledgeable about energy and climate change but isn't.
But Lomborg went on to cherry picking and often straight-up lying about energy in a way that must be conscious, and Pinker fancies himself knowledgeable about energy and climate change but isn't.
This is particularly stunning because the sheer number of times we demonstrated Bjorn Lomborg was just flat-out lying grew so large that it almost became literally pointless to keep doing it, because he just ignores it and keeps on going
November 24, 2025 at 3:08 PM
A few years back, Pinker and Lomborg where examples for me. I *loved* the Sceptical Environmentalist!
But Lomborg went on to cherry picking and often straight-up lying about energy in a way that must be conscious, and Pinker fancies himself knowledgeable about energy and climate change but isn't.
But Lomborg went on to cherry picking and often straight-up lying about energy in a way that must be conscious, and Pinker fancies himself knowledgeable about energy and climate change but isn't.
How have I just discovered this amazingly important thing ?
arstechnica.com/science/2025...
arstechnica.com/science/2025...
New pathway engineered into plants lets them suck up more CO₂
Engineered pathway lets carbon be plugged directly into key metabolic pathways.
arstechnica.com
November 21, 2025 at 3:17 PM
How have I just discovered this amazingly important thing ?
arstechnica.com/science/2025...
arstechnica.com/science/2025...
Reposted by Philip Sargent
"ambient trends in shoreline dynamics, combined with coastal recession driven by sea-level rise, could lead to the near-extinction of almost half of the world’s sandy beaches by the end of the century"
🌊 ⛱️
#ClimateCrisis
🌊 ⛱️
#ClimateCrisis
Half of world’s beaches "will disappear by end of the century"
Climate change and human contruction is trapping the shoreline in “a phenomenon known as coastal squeeze.”
www.newsweek.com
November 21, 2025 at 2:52 AM
"ambient trends in shoreline dynamics, combined with coastal recession driven by sea-level rise, could lead to the near-extinction of almost half of the world’s sandy beaches by the end of the century"
🌊 ⛱️
#ClimateCrisis
🌊 ⛱️
#ClimateCrisis
Gemini "write a program which plots the theoretical maximum COP for a heat pump against ambient temperature between -35 C and +15 C for two heating temperatures: 35C and 65C"
November 21, 2025 at 11:17 AM
Gemini "write a program which plots the theoretical maximum COP for a heat pump against ambient temperature between -35 C and +15 C for two heating temperatures: 35C and 65C"
Reposted by Philip Sargent
Exciting news from Rhizocore Technologies! 🌱 The biotech company has raised £4.5M to scale its fungal-based forestry solutions in North America and boost production in Scotland.
📰 Read More: agcltr.com/rhizocore-ra...
🌐 agcltr.com
#Forestry #Biotechnology #Sustainability
📰 Read More: agcltr.com/rhizocore-ra...
🌐 agcltr.com
#Forestry #Biotechnology #Sustainability
November 21, 2025 at 10:04 AM
Exciting news from Rhizocore Technologies! 🌱 The biotech company has raised £4.5M to scale its fungal-based forestry solutions in North America and boost production in Scotland.
📰 Read More: agcltr.com/rhizocore-ra...
🌐 agcltr.com
#Forestry #Biotechnology #Sustainability
📰 Read More: agcltr.com/rhizocore-ra...
🌐 agcltr.com
#Forestry #Biotechnology #Sustainability
So "infrared panels and renewable liquid fuels" in the new UK subsidy scheme.
www.edie.net/uk-governmen...
Both have the potential to make things worse. When I was in DECC there were very, very good reasons we did not support liquid fuels.
www.edie.net/uk-governmen...
Both have the potential to make things worse. When I was in DECC there were very, very good reasons we did not support liquid fuels.
UK Government extends Boiler Upgrade Scheme to air-to-air heat pumps - edie
The UK Government has expanded its Boiler Upgrade Scheme to offer a £2,500 discount on the installation of air-to-air heat pumps, a technology which provides heat in winter and keeps houses cool in th...
www.edie.net
November 21, 2025 at 9:47 AM
So "infrared panels and renewable liquid fuels" in the new UK subsidy scheme.
www.edie.net/uk-governmen...
Both have the potential to make things worse. When I was in DECC there were very, very good reasons we did not support liquid fuels.
www.edie.net/uk-governmen...
Both have the potential to make things worse. When I was in DECC there were very, very good reasons we did not support liquid fuels.
Aha, so this CO2 capture ship stuff is really just ocean-liming tech in a new guise. But using "free" spare heat and already-pumped seawater. Since ocean liming is already quite cheap, this looks like it might be really quite affordable.
www.ship-technology.com/news/calcare...
www.ship-technology.com/news/calcare...
Calcarea, Aurelia partner on ocean-based carbon capture for bulk carriers
Calcarea and Aurelia Design have agreed to develop ocean-based carbon capture technology for use in commercial shipping.
www.ship-technology.com
November 18, 2025 at 7:32 PM
Aha, so this CO2 capture ship stuff is really just ocean-liming tech in a new guise. But using "free" spare heat and already-pumped seawater. Since ocean liming is already quite cheap, this looks like it might be really quite affordable.
www.ship-technology.com/news/calcare...
www.ship-technology.com/news/calcare...
www.nature.com/articles/s41...
Methane from satellite
Methane from satellite
Global satellite survey reveals uncertainty in landfill methane emissions - Nature
High-resolution satellites reveal major uncertainties in methane emissions from global waste sites, highlighting the need to reconcile observed and reported data, with actionable insights to improve e...
www.nature.com
November 6, 2025 at 12:48 PM
www.nature.com/articles/s41...
Methane from satellite
Methane from satellite
"our satellite-based estimates generally show no correlation with reported or modelled emission estimates at facility scale".
November 6, 2025 at 12:47 PM
"our satellite-based estimates generally show no correlation with reported or modelled emission estimates at facility scale".
"Thermodynamic" panels again, weird but true. But the higher temp. needed for water makes the PV worse, in most climates.
www.pv-magazine.com/2025/10/30/s...
www.pv-magazine.com/2025/10/30/s...
South Korea introduces standards for photovoltaic-thermal modules
The country's National Institute of Technology and Standards said the new standards apply to modules that combine photovoltaic and solar thermal technologies in a single device, noting that separate s...
www.pv-magazine.com
October 31, 2025 at 7:15 AM
"Thermodynamic" panels again, weird but true. But the higher temp. needed for water makes the PV worse, in most climates.
www.pv-magazine.com/2025/10/30/s...
www.pv-magazine.com/2025/10/30/s...
Reposted by Philip Sargent
We can find suitable land with sunlight, water, and nutrients to grow plants, wait years to harvest the biomass and burn it for energy, hope to capture the CO₂ with carbon capture and storage technology, and find a suitable spot to bury the CO₂ permanently.
OR we can use solar panels.
OR we can use solar panels.
October 29, 2025 at 12:50 PM
We can find suitable land with sunlight, water, and nutrients to grow plants, wait years to harvest the biomass and burn it for energy, hope to capture the CO₂ with carbon capture and storage technology, and find a suitable spot to bury the CO₂ permanently.
OR we can use solar panels.
OR we can use solar panels.
Reposted by Philip Sargent
Hydrogen is now extremely dead, as the Government reveals in the modelling annex it has not even bothered to model it. /7
a man in a suit and tie says i don t think about you at all
ALT: a man in a suit and tie says i don t think about you at all
media.tenor.com
October 29, 2025 at 4:40 PM
Hydrogen is now extremely dead, as the Government reveals in the modelling annex it has not even bothered to model it. /7
Reposted by Philip Sargent
Removing gas from domestic heating should be an important piece in climate based energy policy.
NEW ANALYSIS: More than 80% of UK social housing still relies on gas boilers keeping bills exposed to international gas markets and climate targets out of reach.
I’ve explored how other European countries are tackling this at scale, and what the UK can learn.
www.sureserve.co.uk/news-and-pro...
I’ve explored how other European countries are tackling this at scale, and what the UK can learn.
www.sureserve.co.uk/news-and-pro...
Phasing out gas in European social housing - what the UK can learn
www.sureserve.co.uk
October 12, 2025 at 7:22 AM
Removing gas from domestic heating should be an important piece in climate based energy policy.
Unfortunately generally true.
www.transportenvironment.org/articles/bio...
www.transportenvironment.org/articles/bio...
Biofuels globally emit more CO2 than the fossil fuels they replace -…
Biofuel demand continues to grow worldwide despite being responsible for 16% more CO2 emissions globally than the fossil fuels they replace. Using just 3%…
www.transportenvironment.org
October 12, 2025 at 9:50 AM
Unfortunately generally true.
www.transportenvironment.org/articles/bio...
www.transportenvironment.org/articles/bio...
Reposted by Philip Sargent
I had been watching this develop from afar and wanted to say a massive well done to all the northern cave rescue teams and others assisting. It was a huge effort in a challenging location and conditions.
www.bbc.co.uk/news/article...
www.bbc.co.uk/news/article...
Cavers safe after 30-hour rescue during Storm Amy in Wharfedale
Rescue teams battled severe weather and flooding at Dowber Gill Passage in the Yorkshire Dales.
www.bbc.co.uk
October 6, 2025 at 5:11 AM
I had been watching this develop from afar and wanted to say a massive well done to all the northern cave rescue teams and others assisting. It was a huge effort in a challenging location and conditions.
www.bbc.co.uk/news/article...
www.bbc.co.uk/news/article...
Biomethane www.theguardian.com/environment/...
Biomethane not viable for widespread use in UK home heating, report finds
Gas derived from farm waste can meet only 18% of current gas demand by 2050, despite claims of fossil fuel lobbyists, study finds
www.theguardian.com
October 1, 2025 at 5:46 AM
Biomethane www.theguardian.com/environment/...
Reposted by Philip Sargent
Why Hydrogen Still Doesn’t Work. Joe Romm explains the enduring flaws —… | by Michael Barnard | The Future is Electric | Sep, 2025 | Medium medium.com/the-future-i...
Why Hydrogen Still Doesn’t Work
Joe Romm explains the enduring flaws — and why electrification wins
medium.com
September 17, 2025 at 5:47 PM
Why Hydrogen Still Doesn’t Work. Joe Romm explains the enduring flaws —… | by Michael Barnard | The Future is Electric | Sep, 2025 | Medium medium.com/the-future-i...
Reposted by Philip Sargent
4. Hydrogen. In all my decades as an analyst, I have never seen such a big disconnect between the physics and economics of a solution, and the politics of what’s being asked of it. Time to accept that green hydrogen is simply not a climate solution. 22/n
about.bnef.com/insights/cle...
about.bnef.com/insights/cle...
Liebreich: The Pragmatic Climate Reset – Part II: A Provocation | BloombergNEF
As the debate on transition deepens, Michael Liebreich details how a pragmatic climate and energy reset might unfold.
about.bnef.com
September 14, 2025 at 4:33 PM
4. Hydrogen. In all my decades as an analyst, I have never seen such a big disconnect between the physics and economics of a solution, and the politics of what’s being asked of it. Time to accept that green hydrogen is simply not a climate solution. 22/n
about.bnef.com/insights/cle...
about.bnef.com/insights/cle...
Reposted by Philip Sargent
Despite being abused and slandered by Brexiters, including British prime ministers, he's never been anything but generous towards this country. He is urbane, civilised, highly intelligent and immensely impressive.
July 10, 2025 at 1:20 PM
Despite being abused and slandered by Brexiters, including British prime ministers, he's never been anything but generous towards this country. He is urbane, civilised, highly intelligent and immensely impressive.
"If a high-pressure natural gas [pipe]... is re-used for hydrogen, then ~40% more recompression stations are required and about 6x as much energy is lost in friction, thus increasing the energy cost
from 2.8% to about 17% of the gas carried. "
www.cambridgeenergyforum.org.uk/cambridgeene...
from 2.8% to about 17% of the gas carried. "
www.cambridgeenergyforum.org.uk/cambridgeene...
www.cambridgeenergyforum.org.uk
July 1, 2025 at 10:12 AM
"If a high-pressure natural gas [pipe]... is re-used for hydrogen, then ~40% more recompression stations are required and about 6x as much energy is lost in friction, thus increasing the energy cost
from 2.8% to about 17% of the gas carried. "
www.cambridgeenergyforum.org.uk/cambridgeene...
from 2.8% to about 17% of the gas carried. "
www.cambridgeenergyforum.org.uk/cambridgeene...
Reposted by Philip Sargent
Shipping is one of the world’s dirtiest industries – could this invention finally clean up cargo fleets? #Climate
Shipping is one of the world’s dirtiest industries – could this invention finally clean up cargo fleets?
Freighters emit more greenhouse gases than jets, but a tech startup believes a simple and effective technique can help the industry change course
www.theguardian.com
June 26, 2025 at 7:28 AM
Shipping is one of the world’s dirtiest industries – could this invention finally clean up cargo fleets? #Climate
Reposted by Philip Sargent
Is It Too Soon for Ocean-Based Carbon Credits? #Climate
Is It Too Soon for Ocean-Based Carbon Credits?
heatmap.news
June 25, 2025 at 4:34 PM
Is It Too Soon for Ocean-Based Carbon Credits? #Climate