Paul Maidowski
@ppmv.bsky.social
Language, systems analysis, climate policy, CCS. Fletcher School/Fulbright d|e|f|i|中
Pinned
Paul Maidowski
@ppmv.bsky.social
· Oct 23
1. “Introduce your idea in one picture”: Climate science and western policymakers still neglect bamboo, THE plant for resilience, climate adaptation and mitigation, because it can do it all. Worldwide use is a challenge, so start local. Can replace timber, plastic, concrete, edible, grow soil, etc.👇
Reposted by Paul Maidowski
The biggest misunderstanding of Carbon Dioxide Removal (CDR), IMHO, is that many assume it is a replacement for emissions reductions. As in, more CDR, less emission reductions. No. Emissions need to go down as fast as possible, even faster, no matter how much (~feasible) CDR you have.
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November 25, 2025 at 9:10 PM
The biggest misunderstanding of Carbon Dioxide Removal (CDR), IMHO, is that many assume it is a replacement for emissions reductions. As in, more CDR, less emission reductions. No. Emissions need to go down as fast as possible, even faster, no matter how much (~feasible) CDR you have.
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Reposted by Paul Maidowski
New research published today in @nature.com shows the Southern Annular Mode (SAM) – the Southern Hemisphere’s most influential climate driver – has reached its most positive state in more than a millennium.
Read the Nature paper: www.nature.com/articles/s43...
Read the Nature paper: www.nature.com/articles/s43...
Southern Annular Mode dynamics, projections and impacts in a changing climate - Nature Reviews Earth & Environment
The Southern Annular Mode (SAM) has shifted towards its positive phase owing to ozone depletion and increasing greenhouse gas concentrations. This Review discusses the dynamics, trends and projections...
www.nature.com
December 2, 2025 at 5:01 AM
New research published today in @nature.com shows the Southern Annular Mode (SAM) – the Southern Hemisphere’s most influential climate driver – has reached its most positive state in more than a millennium.
Read the Nature paper: www.nature.com/articles/s43...
Read the Nature paper: www.nature.com/articles/s43...
Reposted by Paul Maidowski
For Europe (excluding the UK), BA.3.2.* is holding a strong growth advantage of 4.6% per day (32% per week) over XFG.* "Stratus".
At that pace, any crossover looks to be around the holiday season.
🧵
At that pace, any crossover looks to be around the holiday season.
🧵
November 29, 2025 at 4:05 AM
For Europe (excluding the UK), BA.3.2.* is holding a strong growth advantage of 4.6% per day (32% per week) over XFG.* "Stratus".
At that pace, any crossover looks to be around the holiday season.
🧵
At that pace, any crossover looks to be around the holiday season.
🧵
Reposted by Paul Maidowski
Usually I'd encourage you to find another place to buy the book, but Amazon is selling the BLOOD IN THE MACHINE ebook for $2.99 at what is certainly a loss, so by all means, get a copy for cheap
www.amazon.com/Blood-Machin...
www.amazon.com/Blood-Machin...
Blood in the Machine: The Origins of the Rebellion Against Big Tech
The most urgent story in modern tech begins not in Silicon Valley but two hundred years ago in rural England, when workers known as the Luddites rose up rather than starve at the hands of factory owne...
www.amazon.com
November 27, 2025 at 4:43 AM
Usually I'd encourage you to find another place to buy the book, but Amazon is selling the BLOOD IN THE MACHINE ebook for $2.99 at what is certainly a loss, so by all means, get a copy for cheap
www.amazon.com/Blood-Machin...
www.amazon.com/Blood-Machin...
Reposted by Paul Maidowski
PJM is the regional grid serving 67 million customers in 13 states
November 27, 2025 at 2:04 AM
PJM is the regional grid serving 67 million customers in 13 states
Reposted by Paul Maidowski
It’s Not Just the Rock—It’s the Soil (And it holds on tight) -- Our latest greenhouse study with data from our greenhouse experiments is now available on EGUSphere as a pre-print.
November 25, 2025 at 4:03 PM
It’s Not Just the Rock—It’s the Soil (And it holds on tight) -- Our latest greenhouse study with data from our greenhouse experiments is now available on EGUSphere as a pre-print.
“The entire financial system, including government bonds & mortgages, is premised on the idea that tomorrow will look something like today. In a world that’s 3 degrees warmer, it assuredly will not.” - One of the aspects making climate policy more important, paradoxically, the more publicly ignored
November 25, 2025 at 6:46 AM
“The entire financial system, including government bonds & mortgages, is premised on the idea that tomorrow will look something like today. In a world that’s 3 degrees warmer, it assuredly will not.” - One of the aspects making climate policy more important, paradoxically, the more publicly ignored
Reposted by Paul Maidowski
Wrote about how climate change is bad www.theatlantic.com/science/2025...
Climate Realism Is a Delusion
By shooting for 3 degrees Celsius of warming, the world could slide toward a more cataclysmic 4 degrees.
www.theatlantic.com
November 23, 2025 at 5:47 PM
Wrote about how climate change is bad www.theatlantic.com/science/2025...
“Third, we need new ways to remove an additional 5 billion tonnes of carbon dioxide from the atmosphere each year, and store it safely in the ground.” 👀
"Warming is going to exceed 1.5°C. We are heading into overshoot within the next few years": a stark message by PIK Director Rockström & James Dyke in @theconversation.com. Yet, science shows a way back: fossil-fuel phase-out, nature protection, carbon removal.
theconversation.com/the-world-lo...
theconversation.com/the-world-lo...
The world lost the climate gamble. Now it faces a dangerous new reality
The world bet on collective but voluntary action to keep global warming at a safe level.
theconversation.com
November 23, 2025 at 12:05 PM
“Third, we need new ways to remove an additional 5 billion tonnes of carbon dioxide from the atmosphere each year, and store it safely in the ground.” 👀
Reposted by Paul Maidowski
"Warming is going to exceed 1.5°C. We are heading into overshoot within the next few years": a stark message by PIK Director Rockström & James Dyke in @theconversation.com. Yet, science shows a way back: fossil-fuel phase-out, nature protection, carbon removal.
theconversation.com/the-world-lo...
theconversation.com/the-world-lo...
The world lost the climate gamble. Now it faces a dangerous new reality
The world bet on collective but voluntary action to keep global warming at a safe level.
theconversation.com
November 22, 2025 at 2:07 PM
"Warming is going to exceed 1.5°C. We are heading into overshoot within the next few years": a stark message by PIK Director Rockström & James Dyke in @theconversation.com. Yet, science shows a way back: fossil-fuel phase-out, nature protection, carbon removal.
theconversation.com/the-world-lo...
theconversation.com/the-world-lo...
Reposted by Paul Maidowski
Reposted by Paul Maidowski
Was mach ich in einer Stadtwohnung wenn ich mir das Gas oder Fernwärme nicht leisten kann? Nicht heizen?
Pro Mensch und Tag werden 3l Feuchtigkeit abgegeben. Die schlägt sich an kalten Stellen nieder. Vorsicht, da entsteht eine Schadensersatzpflicht.
www.stuttgarter-zeitung.de/inhalt.was-p...
Pro Mensch und Tag werden 3l Feuchtigkeit abgegeben. Die schlägt sich an kalten Stellen nieder. Vorsicht, da entsteht eine Schadensersatzpflicht.
www.stuttgarter-zeitung.de/inhalt.was-p...
Was passiert, wenn man nicht heizt? (Einfach erklärt)
Könnte man die Wohnung im Winter theoretisch gar nicht heizen? Was würde das für Folgen haben? Die Antworten hier.
www.stuttgarter-zeitung.de
November 23, 2025 at 10:40 AM
Was mach ich in einer Stadtwohnung wenn ich mir das Gas oder Fernwärme nicht leisten kann? Nicht heizen?
Pro Mensch und Tag werden 3l Feuchtigkeit abgegeben. Die schlägt sich an kalten Stellen nieder. Vorsicht, da entsteht eine Schadensersatzpflicht.
www.stuttgarter-zeitung.de/inhalt.was-p...
Pro Mensch und Tag werden 3l Feuchtigkeit abgegeben. Die schlägt sich an kalten Stellen nieder. Vorsicht, da entsteht eine Schadensersatzpflicht.
www.stuttgarter-zeitung.de/inhalt.was-p...
Reposted by Paul Maidowski
We had only recently passed 350 ppm when I started my PhD in Earth System Science, already a value understood to be dangerous and a threat to society.
And now, 33 years and 30 COPs later, we are at a value that is unprecedented for the past 3 million years and maybe even the past 8 million years.
And now, 33 years and 30 COPs later, we are at a value that is unprecedented for the past 3 million years and maybe even the past 8 million years.
425.82 parts per million (ppm) CO2 in air 20-Nov-2025
keelingcurve.ucsd.edu
keelingcurve.ucsd.edu
The Keeling Curve
The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.
keelingcurve.ucsd.edu
November 23, 2025 at 7:54 AM
We had only recently passed 350 ppm when I started my PhD in Earth System Science, already a value understood to be dangerous and a threat to society.
And now, 33 years and 30 COPs later, we are at a value that is unprecedented for the past 3 million years and maybe even the past 8 million years.
And now, 33 years and 30 COPs later, we are at a value that is unprecedented for the past 3 million years and maybe even the past 8 million years.
Reposted by Paul Maidowski
Total anthropogenic CO2 emissions – the sum of fossil & land-use change emissions – have grown more slowly in the past decade1 (0.3% per year on average), compared to the previous decade (1.9% per year).
The growth in fossil emissions is offset by the decrease in land-use change emissions.
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The growth in fossil emissions is offset by the decrease in land-use change emissions.
8/
November 13, 2025 at 7:07 AM
Total anthropogenic CO2 emissions – the sum of fossil & land-use change emissions – have grown more slowly in the past decade1 (0.3% per year on average), compared to the previous decade (1.9% per year).
The growth in fossil emissions is offset by the decrease in land-use change emissions.
8/
The growth in fossil emissions is offset by the decrease in land-use change emissions.
8/
Reposted by Paul Maidowski
1.5C scenarios are dramatic, but are they useful?
Paris puts the control in the hands of countries, with the goal to achieve collective outcomes.
Each country needs a transformation pathway that works for them, contributes to collective goals, & makes them stronger.
drilled.media/news/cop30-g...
Paris puts the control in the hands of countries, with the goal to achieve collective outcomes.
Each country needs a transformation pathway that works for them, contributes to collective goals, & makes them stronger.
drilled.media/news/cop30-g...
November 21, 2025 at 9:55 AM
1.5C scenarios are dramatic, but are they useful?
Paris puts the control in the hands of countries, with the goal to achieve collective outcomes.
Each country needs a transformation pathway that works for them, contributes to collective goals, & makes them stronger.
drilled.media/news/cop30-g...
Paris puts the control in the hands of countries, with the goal to achieve collective outcomes.
Each country needs a transformation pathway that works for them, contributes to collective goals, & makes them stronger.
drilled.media/news/cop30-g...
Klaus Scharioth, remarkable diplomat and teacher. Worth reading: fletcher.tufts.edu/news-events/...
Klaus Scharioth: A Remembrance | The Fletcher School
By Michael Glennon, Professor of Constitutional and International LawWith the passing of Klaus Scharioth on October 30, Germany lost a preeminent diplomat, Fletcher lost an esteemed professor and I lo...
fletcher.tufts.edu
November 12, 2025 at 8:57 PM
Klaus Scharioth, remarkable diplomat and teacher. Worth reading: fletcher.tufts.edu/news-events/...
Reposted by Paul Maidowski
A Sharon Begley byline, almost 5 years after her death.
Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."
Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
🧪🧬🧫
Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."
Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
🧪🧬🧫
James Watson, dead at 97, was a scientific legend and a pariah among his peers
James Watson, the co-discoverer of the structure of DNA who died Thursday at 97, was a scientific legend and a pariah among his peers.
www.statnews.com
November 8, 2025 at 1:39 PM
A Sharon Begley byline, almost 5 years after her death.
Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."
Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
🧪🧬🧫
Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."
Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
🧪🧬🧫
Reposted by Paul Maidowski
Useful answers in the comments!
Is there any way to turn google search results back to just delivering websites, rather than forcing you to also see sub-sections for images and videos and "people also search for"?
November 7, 2025 at 7:27 PM
Useful answers in the comments!
« The marker that distinguishes Gen Z is how pessimistic its members are, and how much they feel like life is beyond their control, according to Jean Twenge, a psychologist who analyzed data from national surveys of high school students and first-year college students in her book “Generations.” »
Not only a game, it should be what you do at university. That it's not is the best explanation (really the only explanation) of climate change and the origins of it. 50 years of eyes-open depredation.
www.nytimes.com/2024/05/22/b...
www.nytimes.com/2024/05/22/b...
What Do Students at Elite Colleges Really Want? (Published 2024)
www.nytimes.com
November 1, 2025 at 2:43 PM
« The marker that distinguishes Gen Z is how pessimistic its members are, and how much they feel like life is beyond their control, according to Jean Twenge, a psychologist who analyzed data from national surveys of high school students and first-year college students in her book “Generations.” »
Reposted by Paul Maidowski
Using surveillance data from the CDC for notifiable infectious diseases, researchers in Science have made a comprehensive statistical analysis of the indirect impact of the COVID-19 pandemic on a range of infections occurring in the U.S. https://scim.ag/4nBv86S
Collateral effects of COVID-19 pandemic control on the US infectious disease landscape
Using data from the United States Centers for Disease Control and Prevention (CDC) disease surveillance systems, we sought to quantify the indirect effects of the COVID-19 pandemic, and the possibilit...
scim.ag
October 31, 2025 at 7:13 PM
Using surveillance data from the CDC for notifiable infectious diseases, researchers in Science have made a comprehensive statistical analysis of the indirect impact of the COVID-19 pandemic on a range of infections occurring in the U.S. https://scim.ag/4nBv86S
Reposted by Paul Maidowski
As I wrote earlier, the nice thing about large heat pumps is that it's a bit like the Olympics: there are lots of medals to be won in different categories. Is this the largest heat pump in the world? In this class (input: river, output: steam), perhaps yes.
One of the world’s largest industrial heat pumps is coming to Boston.
A 35MW system will use energy from the Charles River and deliver steam to heat more than 70 million square feet of buildings across Boston and Cambridge — hospitals, schools, homes, and businesses alike.
A 35MW system will use energy from the Charles River and deliver steam to heat more than 70 million square feet of buildings across Boston and Cambridge — hospitals, schools, homes, and businesses alike.
October 31, 2025 at 12:14 PM
As I wrote earlier, the nice thing about large heat pumps is that it's a bit like the Olympics: there are lots of medals to be won in different categories. Is this the largest heat pump in the world? In this class (input: river, output: steam), perhaps yes.
Reposted by Paul Maidowski
In this and following posts I summarise some key findings.
Firstly, the last remaining area of ice shelf in front of Thwaites Glacier, the Thwaites Eastern Ice Shelf, is nearing break-up.
doi.org/10.1017/jog....
Firstly, the last remaining area of ice shelf in front of Thwaites Glacier, the Thwaites Eastern Ice Shelf, is nearing break-up.
doi.org/10.1017/jog....
October 26, 2025 at 9:44 PM
In this and following posts I summarise some key findings.
Firstly, the last remaining area of ice shelf in front of Thwaites Glacier, the Thwaites Eastern Ice Shelf, is nearing break-up.
doi.org/10.1017/jog....
Firstly, the last remaining area of ice shelf in front of Thwaites Glacier, the Thwaites Eastern Ice Shelf, is nearing break-up.
doi.org/10.1017/jog....
Reposted by Paul Maidowski
Future changes in irrigation will reduce dry-heat stress (without reversing GHG trend) and will substantially amplify moist-heat stress (strengthening GHG trend).
New study @natcomms.nature.com led by Yi Yao @hydr-vub.bsky.social and @usyseth.bsky.social
www.nature.com/articles/s41...
New study @natcomms.nature.com led by Yi Yao @hydr-vub.bsky.social and @usyseth.bsky.social
www.nature.com/articles/s41...
Compounding future escalation of emissions- and irrigation-induced increases in humid-heat stress - Nature Communications
This study shows that future exposures to moist-heat increase more rapidly than those to dry-heat, and irrigation can further amplify moist-heat-related health risks. Improving irrigation efficiency a...
www.nature.com
October 31, 2025 at 8:46 AM
Future changes in irrigation will reduce dry-heat stress (without reversing GHG trend) and will substantially amplify moist-heat stress (strengthening GHG trend).
New study @natcomms.nature.com led by Yi Yao @hydr-vub.bsky.social and @usyseth.bsky.social
www.nature.com/articles/s41...
New study @natcomms.nature.com led by Yi Yao @hydr-vub.bsky.social and @usyseth.bsky.social
www.nature.com/articles/s41...
“[M]ultiple episodes of permafrost absence between 10 and 5 Ma, suggesting mean annual air temperatures 14 °C higher than present coinciding with atmospheric CO2 concentrations above 310 ppm and local sea surface temperature anomalies >2 °C higher than present.” - We will exceed 450 ppm in the 2030s
Amazing such archives were preserved…
Late Miocene Arctic warmth and terrestrial climate recorded by North Greenland speleothems
www.nature.com/articles/s41...
Late Miocene Arctic warmth and terrestrial climate recorded by North Greenland speleothems
www.nature.com/articles/s41...
Late Miocene Arctic warmth and terrestrial climate recorded by North Greenland speleothems - Nature Geoscience
The Late Miocene terrestrial climate in eastern North Greenland displayed elevated temperatures at moderate atmospheric CO2 levels and was highly variable, reflecting the shifting orbital and ocean ci...
www.nature.com
October 30, 2025 at 8:05 AM
“[M]ultiple episodes of permafrost absence between 10 and 5 Ma, suggesting mean annual air temperatures 14 °C higher than present coinciding with atmospheric CO2 concentrations above 310 ppm and local sea surface temperature anomalies >2 °C higher than present.” - We will exceed 450 ppm in the 2030s
Reposted by Paul Maidowski
Wow, this is crazy. Direct megafaunal connections between Europe and North America existed up to the Miocene! Imagine island hopping and strait-crossing rhinos in the Arctic:
🧪 ⚒️ #Paleobio #EvoBio #Geology
www.nature.com/articles/s41...
🧪 ⚒️ #Paleobio #EvoBio #Geology
www.nature.com/articles/s41...
October 29, 2025 at 9:05 AM
Wow, this is crazy. Direct megafaunal connections between Europe and North America existed up to the Miocene! Imagine island hopping and strait-crossing rhinos in the Arctic:
🧪 ⚒️ #Paleobio #EvoBio #Geology
www.nature.com/articles/s41...
🧪 ⚒️ #Paleobio #EvoBio #Geology
www.nature.com/articles/s41...