Andrew MacDougall
@ahmacdougall.bsky.social
Canadian Climate Scientist from Nova Scotia, specializing in Zero Emissions Commitment, carbon budgets, permafrost carbon, and biogeochemical feedbacks to climate change.
And there goes short haul trucking. Another ‘hard to mitigate’ sector that turned out not to be hard to mitigate.
More Chinese #electrotech "propaganda" - the diesel freight truck is dying a quick death in China, and what's replacing it is simpler, more reliable, costs less in terms of CAPEX and OPEX, and doesn't emit local air pollutant nor GHGs. cleantechnica.com/2025/11/26/c...
China’s BEV Trucks and the End of Diesel’s Dominance - CleanTechnica
China’s electric heavy truck boom signals a freight transition as low cost BEVs outpace diesel and gas across short haul markets. Exports are rising.
cleantechnica.com
November 30, 2025 at 3:15 PM
And there goes short haul trucking. Another ‘hard to mitigate’ sector that turned out not to be hard to mitigate.
Reposted by Andrew MacDougall
For a yr, I've been working on a series for The New Atlantis about the vast systems that underlie our lives. Our ancestors built them up over decades to fend off hunger, thirst, darkness and disease. But too few of us know about them—and they're all at risk. The conclusion is now available online:
Why We Are Better Off Than a Century Ago
Our ancestors built grand public systems to conquer hunger, thirst, darkness, and squalor. That progress can be lost if we forget it.
www.thenewatlantis.com
November 25, 2025 at 8:59 PM
For a yr, I've been working on a series for The New Atlantis about the vast systems that underlie our lives. Our ancestors built them up over decades to fend off hunger, thirst, darkness and disease. But too few of us know about them—and they're all at risk. The conclusion is now available online:
Reposted by Andrew MacDougall
Fossil fuel enthusiasts keep arguing that we need to increase our exports of LNG and oil to address energy poverty in the developing world.
I call bullshit — and I bring my receipts. #abpoli #cdnpoli
www.nationalobserver.com/2025/11/25/o...
I call bullshit — and I bring my receipts. #abpoli #cdnpoli
www.nationalobserver.com/2025/11/25/o...
The energy poverty trap
Will more oil and gas production in Canada help alleviate energy poverty in the developing world? Of course not — but that hasn't prevented Danielle Smith and other industry champions from pretending ...
www.nationalobserver.com
November 25, 2025 at 4:11 PM
Fossil fuel enthusiasts keep arguing that we need to increase our exports of LNG and oil to address energy poverty in the developing world.
I call bullshit — and I bring my receipts. #abpoli #cdnpoli
www.nationalobserver.com/2025/11/25/o...
I call bullshit — and I bring my receipts. #abpoli #cdnpoli
www.nationalobserver.com/2025/11/25/o...
Reposted by Andrew MacDougall
Q Anon may just have been the single greatest success in the history of Nigerian financial fraud.
November 23, 2025 at 6:27 PM
Q Anon may just have been the single greatest success in the history of Nigerian financial fraud.
Reposted by Andrew MacDougall
I'm really glad renewable technology development doesn't depend on the COP negotiations.
Petrostates, fossil fuel companies, and their lackeys can sabotage diplomacy, but it's becoming increasingly transparent what they do is simply evil, while we will ditch fossil fuels anyway.
Petrostates, fossil fuel companies, and their lackeys can sabotage diplomacy, but it's becoming increasingly transparent what they do is simply evil, while we will ditch fossil fuels anyway.
COP30 BREAKING NEWS: The likely final text of the "global mutirão" has been published, ahead of the closing plenary
Here's the snap analysis from the CB team…see last line
unfccc.int/sites/def...
Here's the snap analysis from the CB team…see last line
unfccc.int/sites/def...
November 23, 2025 at 12:03 PM
I'm really glad renewable technology development doesn't depend on the COP negotiations.
Petrostates, fossil fuel companies, and their lackeys can sabotage diplomacy, but it's becoming increasingly transparent what they do is simply evil, while we will ditch fossil fuels anyway.
Petrostates, fossil fuel companies, and their lackeys can sabotage diplomacy, but it's becoming increasingly transparent what they do is simply evil, while we will ditch fossil fuels anyway.
Canadian Universities do not, and have never used standardized tests for entry. So we just built systems to deal with these kinds of problems.
I did not take a single standardized test between grade 6 and completing my PhD.
I did not take a single standardized test between grade 6 and completing my PhD.
This is mind-boggling:
"“Of those who demonstrated math skills not meeting middle school levels,” the report found, 42% reported completing calculus or precalculus."
How can they be expected to even begin understanding calculus, if they haven't mastered fractions?
♾️🎢
"“Of those who demonstrated math skills not meeting middle school levels,” the report found, 42% reported completing calculus or precalculus."
How can they be expected to even begin understanding calculus, if they haven't mastered fractions?
♾️🎢
Oooo I first heard about this here
substack.com/@kelseytuoc/...
Lemme see what this Atlantic article is all about
substack.com/@kelseytuoc/...
Lemme see what this Atlantic article is all about
November 23, 2025 at 12:11 PM
Canadian Universities do not, and have never used standardized tests for entry. So we just built systems to deal with these kinds of problems.
I did not take a single standardized test between grade 6 and completing my PhD.
I did not take a single standardized test between grade 6 and completing my PhD.
Reposted by Andrew MacDougall
I wrote a little bit about the "missing heritability" question and several recent studies that have brought it to a close. A short 🧵
The missing heritability question is now (mostly) answered
Not with a bang but with a whimper
theinfinitesimal.substack.com
November 21, 2025 at 10:34 PM
I wrote a little bit about the "missing heritability" question and several recent studies that have brought it to a close. A short 🧵
Reposted by Andrew MacDougall
Reposted by Andrew MacDougall
The North American #petrostate bubble is so weird. Even the classic Middle Eastern autocratic petrostates don’t construct weird alternative realities to justify fossil fuels, they actively & transparently follow the money wherever it flows, including into the clean energy transition.
November 15, 2025 at 7:57 PM
The North American #petrostate bubble is so weird. Even the classic Middle Eastern autocratic petrostates don’t construct weird alternative realities to justify fossil fuels, they actively & transparently follow the money wherever it flows, including into the clean energy transition.
Reposted by Andrew MacDougall
Now that the Sept and Oct data are (belatedly) in, it looks like 2025 will be the second warmest year in the record (~80% probability). The last three years are in a class of their own.
November 15, 2025 at 4:54 PM
Now that the Sept and Oct data are (belatedly) in, it looks like 2025 will be the second warmest year in the record (~80% probability). The last three years are in a class of their own.
No emission peak this year. Emissions up in China, US and EU. Land use change emissions are down.
Published today in Earth System Science Data: The Global Carbon Budget 2025
essd.copernicus.org/preprints/es...
essd.copernicus.org/preprints/es...
Global Carbon Budget 2025
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate is critical to bette...
essd.copernicus.org
November 13, 2025 at 8:04 PM
No emission peak this year. Emissions up in China, US and EU. Land use change emissions are down.
Reposted by Andrew MacDougall
NEW: Global fossil fuel use will peak before 2030 – unless 'stated policies' are abandoned
Contra some terrible news coverage, IEA World Energy Outlook shows coal near peak, oil peaking by 2030 & gas by 2035 (see chart)
What's going on? 🧵 + cool charts
www.carbonbrief.org/iea-fossil-f...
Contra some terrible news coverage, IEA World Energy Outlook shows coal near peak, oil peaking by 2030 & gas by 2035 (see chart)
What's going on? 🧵 + cool charts
www.carbonbrief.org/iea-fossil-f...
November 12, 2025 at 9:02 AM
NEW: Global fossil fuel use will peak before 2030 – unless 'stated policies' are abandoned
Contra some terrible news coverage, IEA World Energy Outlook shows coal near peak, oil peaking by 2030 & gas by 2035 (see chart)
What's going on? 🧵 + cool charts
www.carbonbrief.org/iea-fossil-f...
Contra some terrible news coverage, IEA World Energy Outlook shows coal near peak, oil peaking by 2030 & gas by 2035 (see chart)
What's going on? 🧵 + cool charts
www.carbonbrief.org/iea-fossil-f...
Reposted by Andrew MacDougall
I think, of all the slides in this report, this is the most important -- it's really worth examining closely. This illustrates why the triumph of electrotechnical is inevitable.
November 11, 2025 at 5:25 PM
I think, of all the slides in this report, this is the most important -- it's really worth examining closely. This illustrates why the triumph of electrotechnical is inevitable.
"China is now making more money from exporting green technology than America makes from exporting fossil fuels. "
www.economist.com/leaders/2025...
www.economist.com/leaders/2025...
China’s clean-energy revolution will reshape markets and politics
The world’s biggest manufacturer now has an interest in the world decarbonising
www.economist.com
November 7, 2025 at 5:45 PM
"China is now making more money from exporting green technology than America makes from exporting fossil fuels. "
www.economist.com/leaders/2025...
www.economist.com/leaders/2025...
Reposted by Andrew MacDougall
From The Archives:
Dick Cheney Vice Presidential Library Opens In Pitch-Dark, Sulfurous Underground Cave https://theonion.com/dick-cheney-vice-presidential-library-opens-in-pitch-da-1819574915/
Dick Cheney Vice Presidential Library Opens In Pitch-Dark, Sulfurous Underground Cave https://theonion.com/dick-cheney-vice-presidential-library-opens-in-pitch-da-1819574915/
November 4, 2025 at 9:30 PM
From The Archives:
Dick Cheney Vice Presidential Library Opens In Pitch-Dark, Sulfurous Underground Cave https://theonion.com/dick-cheney-vice-presidential-library-opens-in-pitch-da-1819574915/
Dick Cheney Vice Presidential Library Opens In Pitch-Dark, Sulfurous Underground Cave https://theonion.com/dick-cheney-vice-presidential-library-opens-in-pitch-da-1819574915/
Reposted by Andrew MacDougall
China Agrees To Purchase 11 U.S. Soybeans
China Agrees To Purchase 11 U.S. Soybeans
SEOUL—In a historic trade agreement that President Donald Trump touted as a major win for an American farmer, China reportedly agreed Thursday to purchase 11 U.S. soybeans. “I am extremely honored tha...
theonion.com
October 30, 2025 at 9:00 PM
China Agrees To Purchase 11 U.S. Soybeans
Reposted by Andrew MacDougall
![Comic. [two connected spacecraft hovering in space above the Earth] Houston, the view is superb. We can see the continents spread out below us, right where they’ve been since the Earth formed. [caption] I still can’t believe we developed spaceflight before we figured out that the continents moved.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreicp2ka5asjgkmgfdfj33vnjb5bbvk3vnyao6ju5kipxcdc23pqasm@jpeg)
October 27, 2025 at 8:05 PM
Levelized coats of solar in China has reached $27/MWh, that’s 2.7 ¢/kWh
An update from the analysts at WoodMac: yes, as of 2025, solar PV remains the cheapest source of power in the world.
And -- bonus! -- it is still getting cheaper with every passing day.
And -- bonus! -- it is still getting cheaper with every passing day.
Solar PV retains most competitive LCOE globally in 2025 – Wood Mackenzie
Solar PV technology has maintained its leading position as the most cost-competitive power generation source in 2025, according to WoodMac.
www.pv-tech.org
October 27, 2025 at 7:23 PM
Levelized coats of solar in China has reached $27/MWh, that’s 2.7 ¢/kWh
Reposted by Andrew MacDougall
An update from the analysts at WoodMac: yes, as of 2025, solar PV remains the cheapest source of power in the world.
And -- bonus! -- it is still getting cheaper with every passing day.
And -- bonus! -- it is still getting cheaper with every passing day.
Solar PV retains most competitive LCOE globally in 2025 – Wood Mackenzie
Solar PV technology has maintained its leading position as the most cost-competitive power generation source in 2025, according to WoodMac.
www.pv-tech.org
October 27, 2025 at 6:49 PM
An update from the analysts at WoodMac: yes, as of 2025, solar PV remains the cheapest source of power in the world.
And -- bonus! -- it is still getting cheaper with every passing day.
And -- bonus! -- it is still getting cheaper with every passing day.
Reposted by Andrew MacDougall
My Sunday update on explosive intensification of #HurricaneMelissa and why I fear a generational disaster is emerging
www.forbes.com/sites/marsha...
www.forbes.com/sites/marsha...
Hurricane Melissa Approaches Rare Category 5 — Four Things To Know
Hurricane Melissa is on its way to Category 5 status after explosively intensifying. Here are 4 things you need to know right now about its strength, track, and impacts.
www.forbes.com
October 26, 2025 at 12:04 PM
My Sunday update on explosive intensification of #HurricaneMelissa and why I fear a generational disaster is emerging
www.forbes.com/sites/marsha...
www.forbes.com/sites/marsha...
This is actually an astounding statistic. In the 1800s 40 acres was what was seen as necessary to feed a family. The increase in yields from the green revolution is simply astonishing, even though it came with steep environmental costs (pesticide, nitrate pollution, monoculture).
It’s even more extreme than that if you want full self-sufficiency. The average US diet requires ~2 acres of land (cropland + pasture)/person/year. So a family of 4 would need ~8 acres.
(It’s less if you eat more plants/fewer animal proteins than avg American, but it’s still a looooot of land.)
(It’s less if you eat more plants/fewer animal proteins than avg American, but it’s still a looooot of land.)
On Threads, the usual suspects are telling ppl about to lose SNAP benefits to just start a garden. As a gardener, I had to laugh. You need at LEAST an acre of land to feed a family of 4. Start-up costs are enormous. But yes, subsistence farming on the balcony of your rental apartment is the answer
October 24, 2025 at 12:10 AM
This is actually an astounding statistic. In the 1800s 40 acres was what was seen as necessary to feed a family. The increase in yields from the green revolution is simply astonishing, even though it came with steep environmental costs (pesticide, nitrate pollution, monoculture).
Reposted by Andrew MacDougall
![Comic. Confusion matrix showing renditions of different combinations, colored yellow, tan, or gray. [Air: gamma rays Y, neutrons Y, alpha particles G, light Y, sound Y, heat Y, swords Y, toxic dust Y, radio Y, sharks G] [Lead: gamma rays G, neutrons T, alpha particles G, light G, Sound Y, heat Y, swords G, toxic dust T, radio G, sharks G] [Water: gamma rays T, neutrons G, alpha particles G, light T, sound Y, heat Y, swords Y, toxic dust Y, radio G, sharks Y] [Vacuum: gamma rays Y, neutrons Y, alpha particles Y, light Y, sound G, heat T, swords Y, toxic dust Y, radio Y, sharks G] [Oven mitts: gamma rays Y, neutrons Y, alpha particles G, light G, sound T, heat G, swords Y, toxic dust Y, radio Y, sharks Y] [Armor: gamma rays Y, neutrons Y, alpha particles G, light G, sound Y, heat Y, swords G, toxic dust Y, radio G, sharks T] [Biohazard suit: gamma rays Y, neutrons Y, alpha particles G, light G, sound Y, heat Y, swords Y, toxic dust G, radio Y, sharks Y] [Faraday cage: gamma rays Y, neutrons Y, alpha particles Y, light Y, sound Y, heat Y, swords Y, toxic dust Y, radio G, sharks Y] [Shark cage: gamma rays Y, neutrons Y, alpha particles Y, light Y, sound Y, heat Y, swords Y, toxic dust Y, radio Y, sharks G]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreib7rzofmrqb5cvnyccnb7ftj6qroxtp55i4dqqnbp2ozun6gaxbkm@jpeg)
October 23, 2025 at 8:10 PM
Reposted by Andrew MacDougall
Great NYT article China’s fast growing nucelar industry www.nytimes.com/interactive/...
October 23, 2025 at 9:45 PM
Great NYT article China’s fast growing nucelar industry www.nytimes.com/interactive/...
Went to the wake of a former student today. I was on his supervisory committee and he defended his MSc last May.
Life is short and we never know what day might be our last.
Rest in peace Jack, you will be missed.
www.clcurry.com/obituaries/1...
Life is short and we never know what day might be our last.
Rest in peace Jack, you will be missed.
www.clcurry.com/obituaries/1...
Jacob Vaughn "Jack" Johnson (1993-2025)
Johnson, Jacob
www.clcurry.com
October 20, 2025 at 10:54 PM
Went to the wake of a former student today. I was on his supervisory committee and he defended his MSc last May.
Life is short and we never know what day might be our last.
Rest in peace Jack, you will be missed.
www.clcurry.com/obituaries/1...
Life is short and we never know what day might be our last.
Rest in peace Jack, you will be missed.
www.clcurry.com/obituaries/1...