Sylvain Marcoux
@sylvainmarcoux.bsky.social
ing. MBA, Pollution Atmosphérique & GHG, en français et/ou en anglais. Proprio d’un bengal psychopathe. dreams of founding the Centre for centralized Center. Will repost cloud pics
Pinned
Reposted by Sylvain Marcoux
Canada's worst wildfire season produced so much smoke that it spilled across national borders.
A group of UMD researchers discovered that chemical compounds from the wildfires remained in the atmosphere months after the smoke subsided.
A group of UMD researchers discovered that chemical compounds from the wildfires remained in the atmosphere months after the smoke subsided.
Chemical Traces of 2023 Canadian Wildfires Detected in Maryland Months After Smoke Subsided | College of Computer, Mathematical, and Natural Sciences | University of Maryland
A new University of Maryland study of campus air samples revealed that chemical compounds from Canada’s historic
go.umd.edu
December 8, 2025 at 8:23 PM
Canada's worst wildfire season produced so much smoke that it spilled across national borders.
A group of UMD researchers discovered that chemical compounds from the wildfires remained in the atmosphere months after the smoke subsided.
A group of UMD researchers discovered that chemical compounds from the wildfires remained in the atmosphere months after the smoke subsided.
Reposted by Sylvain Marcoux
My piece in the Bulletin of the Atomic Scientists on the rapid and widespread increase in violence over #water resources in the past several years.
Record levels reported in 2024.
thebulletin.org/2025/12/viol...
Record levels reported in 2024.
thebulletin.org/2025/12/viol...
Violence over water resources reaches record levels
The number of violent events over water resources reported in 2024 was nearly 20 percent higher than 2023 and nearly 80 percent higher than 2022.
thebulletin.org
December 8, 2025 at 4:39 PM
My piece in the Bulletin of the Atomic Scientists on the rapid and widespread increase in violence over #water resources in the past several years.
Record levels reported in 2024.
thebulletin.org/2025/12/viol...
Record levels reported in 2024.
thebulletin.org/2025/12/viol...
Reposted by Sylvain Marcoux
Les faucons, ces précieux alliés des producteurs de cerises
Les faucons, ces précieux alliés des producteurs de cerises
Placés près des vergers, les rapaces évitent les razzias menées par de plus petits volatiles et les potentielles maladies provoquées par leurs fientes.
www.lemonde.fr
December 7, 2025 at 3:00 PM
Les faucons, ces précieux alliés des producteurs de cerises
Reposted by Sylvain Marcoux
If you’re taking some satisfaction from the MAGA crackup, don’t let your guard down. It’s when Trump feels he’s in trouble that he does the biggest and craziest things to deflect attention. Some thoughts... https://robertreich.substack.com/p/sunday-thought-really-truly-the-end
Sunday thought: Really, truly, the end of Trump is near
MAGA is cracking up, but beware
robertreich.substack.com
December 7, 2025 at 3:01 PM
If you’re taking some satisfaction from the MAGA crackup, don’t let your guard down. It’s when Trump feels he’s in trouble that he does the biggest and craziest things to deflect attention. Some thoughts... https://robertreich.substack.com/p/sunday-thought-really-truly-the-end
Reposted by Sylvain Marcoux
Snowpack in the West is lacking as shown by the snow water equivalent. Many basins across the West have snow water equivalents below 50% of normal as shown in red.
#snow #snowpack #drought #precipitation 🧪
nwcc-apps.sc.egov.usda.gov/imap/#versio...
#snow #snowpack #drought #precipitation 🧪
nwcc-apps.sc.egov.usda.gov/imap/#versio...
December 5, 2025 at 9:39 PM
Snowpack in the West is lacking as shown by the snow water equivalent. Many basins across the West have snow water equivalents below 50% of normal as shown in red.
#snow #snowpack #drought #precipitation 🧪
nwcc-apps.sc.egov.usda.gov/imap/#versio...
#snow #snowpack #drought #precipitation 🧪
nwcc-apps.sc.egov.usda.gov/imap/#versio...
Reposted by Sylvain Marcoux
“the combat decisions HE has made”
If Admiral Bradley didn’t realize before that these cowards were setting him up to take the fall, he knows it now. Time to hire a good lawyer.
December 2, 2025 at 2:08 AM
“the combat decisions HE has made”
Reposted by Sylvain Marcoux
JD Vance pushed the recent Russia-friendly "peace" plan, effectively trying to get Ukraine to surrender.
It didn't work.
But it's hardly the first time. Why does he keep trying to help Russia win? Because he's a far right ideologue who sees Putin as a culture war champion.
New from me, in @ms.now
It didn't work.
But it's hardly the first time. Why does he keep trying to help Russia win? Because he's a far right ideologue who sees Putin as a culture war champion.
New from me, in @ms.now
Opinion | Why JD Vance keeps trying to help Russia win the war with Ukraine
The vice president pushed a Russia-friendly peace plan — which tracks with his far-right worldview that sees Putin as an “anti-woke” culture war ally, says Nicholas Grossman.
www.ms.now
December 2, 2025 at 2:18 AM
JD Vance pushed the recent Russia-friendly "peace" plan, effectively trying to get Ukraine to surrender.
It didn't work.
But it's hardly the first time. Why does he keep trying to help Russia win? Because he's a far right ideologue who sees Putin as a culture war champion.
New from me, in @ms.now
It didn't work.
But it's hardly the first time. Why does he keep trying to help Russia win? Because he's a far right ideologue who sees Putin as a culture war champion.
New from me, in @ms.now
Reposted by Sylvain Marcoux
This is a legitimate scientific revolution in meteorology.
Also, to be clear, these models are not the AI LLMs that most people are familiar with. They are machine learning algorithms trained on observations (actually reanalysis).
Also, to be clear, these models are not the AI LLMs that most people are familiar with. They are machine learning algorithms trained on observations (actually reanalysis).
Meteorologists are surprised that the weather model that did the best job forecasting hurricanes this year was a new one, introduced by Google. AI may be the beginning of a new era of forecasting. n.pr/49MFa1M
As the 2025 Atlantic hurricane season ends, the future of forecasting is AI
Meteorologists are surprised that the weather model that did the best job forecasting hurricanes this year was a new one, introduced by Google. AI may be the beginning of a new era of forecasting.
n.pr
November 30, 2025 at 5:55 AM
This is a legitimate scientific revolution in meteorology.
Also, to be clear, these models are not the AI LLMs that most people are familiar with. They are machine learning algorithms trained on observations (actually reanalysis).
Also, to be clear, these models are not the AI LLMs that most people are familiar with. They are machine learning algorithms trained on observations (actually reanalysis).
Reposted by Sylvain Marcoux
This is a good article about the relentless onslaught of climate disinformation that distorts US and global politics.
I just wish it acknowledged that disinformation is sticky precisely because it often resonates w the speech of “our side.”
For example…
www.nytimes.com/2025/11/30/c...
I just wish it acknowledged that disinformation is sticky precisely because it often resonates w the speech of “our side.”
For example…
www.nytimes.com/2025/11/30/c...
Many Fighting Climate Change Worry They Are Losing the Information War
www.nytimes.com
November 30, 2025 at 1:36 PM
This is a good article about the relentless onslaught of climate disinformation that distorts US and global politics.
I just wish it acknowledged that disinformation is sticky precisely because it often resonates w the speech of “our side.”
For example…
www.nytimes.com/2025/11/30/c...
I just wish it acknowledged that disinformation is sticky precisely because it often resonates w the speech of “our side.”
For example…
www.nytimes.com/2025/11/30/c...
Reposted by Sylvain Marcoux
Hey America, elections have consequences.
Dr. Ralph Abraham, who as Louisiana's surgeon general ordered the state health department to stop promoting vaccinations and who has called COVID vaccines 'dangerous' — there is no evidence to suggest COVID vaccines are dangerous — has been named the second in command at the CDC.
Doctor Critical of Vaccines Quietly Appointed as C.D.C.’s Second in Command
www.nytimes.com
November 26, 2025 at 3:41 PM
Hey America, elections have consequences.
Reposted by Sylvain Marcoux
As soon as this new information was unleashed, people began looking at the location data for accounts that primarily serve to stoke political tensions in the U.S. with far-right narratives that are often misleading or outright false.
X's Top MAGA Trolls Revealed to Be Foreign Accounts
bit.ly
November 25, 2025 at 2:16 PM
As soon as this new information was unleashed, people began looking at the location data for accounts that primarily serve to stoke political tensions in the U.S. with far-right narratives that are often misleading or outright false.
Reposted by Sylvain Marcoux
“You are constantly invited to be what you are.”
~ Ralph Waldo Emerson
At Dusk in November (1891)
🎨 Hugo Darnaut
~ Ralph Waldo Emerson
At Dusk in November (1891)
🎨 Hugo Darnaut
November 22, 2025 at 4:46 PM
“You are constantly invited to be what you are.”
~ Ralph Waldo Emerson
At Dusk in November (1891)
🎨 Hugo Darnaut
~ Ralph Waldo Emerson
At Dusk in November (1891)
🎨 Hugo Darnaut
Reposted by Sylvain Marcoux
The percent of normal precipitation map for the last 30 days shows that many parts of the US have received 50% or less (dark orange) of normal precipitation. Meanwhile, areas of California and the West have gotten 400% to 800% of normal precipitation.
#precipitation 🧪
hprcc.unl.edu/products/map...
#precipitation 🧪
hprcc.unl.edu/products/map...
November 21, 2025 at 6:23 PM
The percent of normal precipitation map for the last 30 days shows that many parts of the US have received 50% or less (dark orange) of normal precipitation. Meanwhile, areas of California and the West have gotten 400% to 800% of normal precipitation.
#precipitation 🧪
hprcc.unl.edu/products/map...
#precipitation 🧪
hprcc.unl.edu/products/map...
Reposted by Sylvain Marcoux
This is not a peace plan. It is a proposal that weakens Ukraine and divides America from Europe, preparing the way for a larger war in the future. In the meantime, it benefits unnamed Russian and American investors, at the expense of everyone else.
www.theatlantic.com/ideas/2025/1...
www.theatlantic.com/ideas/2025/1...
Trump Has a Recipe for War and Corruption, Not Peace
Who would benefit from the White House’s 28-point proposal for Ukraine?
www.theatlantic.com
November 22, 2025 at 11:11 AM
This is not a peace plan. It is a proposal that weakens Ukraine and divides America from Europe, preparing the way for a larger war in the future. In the meantime, it benefits unnamed Russian and American investors, at the expense of everyone else.
www.theatlantic.com/ideas/2025/1...
www.theatlantic.com/ideas/2025/1...
Reposted by Sylvain Marcoux
Black carbon has us stuck in a vicious cycle: intensifying wildfires, harming health and degrading #AirQuality.
@climatevisuals.bsky.social new photo series exposes the super pollutant's devastating impacts across Brazil's Amazon region.
Explore and download for free 🔽
https://bit.ly/49FK6Fn
@climatevisuals.bsky.social new photo series exposes the super pollutant's devastating impacts across Brazil's Amazon region.
Explore and download for free 🔽
https://bit.ly/49FK6Fn
November 18, 2025 at 11:30 AM
Black carbon has us stuck in a vicious cycle: intensifying wildfires, harming health and degrading #AirQuality.
@climatevisuals.bsky.social new photo series exposes the super pollutant's devastating impacts across Brazil's Amazon region.
Explore and download for free 🔽
https://bit.ly/49FK6Fn
@climatevisuals.bsky.social new photo series exposes the super pollutant's devastating impacts across Brazil's Amazon region.
Explore and download for free 🔽
https://bit.ly/49FK6Fn
Reposted by Sylvain Marcoux
Nine-month-old AI company you've never heard of that revealed its first product last month wants to be valued as much as Ford
Sources: Mira Murati's Thinking Machines Lab is in talks with potential investors to raise about $5B and is aiming for a valuation of at least $50B (The Information)
Main Link | Techmeme Permalink
Main Link | Techmeme Permalink
November 18, 2025 at 12:54 AM
Nine-month-old AI company you've never heard of that revealed its first product last month wants to be valued as much as Ford
Reposted by Sylvain Marcoux
DYK the Earth's heat is a constant, renewable source of energy 🔥♻️⚡️?
In our new Explainer Series, we explain how enhanced geothermal systems (EGS) go beyond natural hot spots to unlock resilient power almost anywhere. Check it out! 🧪 ⬇️
In our new Explainer Series, we explain how enhanced geothermal systems (EGS) go beyond natural hot spots to unlock resilient power almost anywhere. Check it out! 🧪 ⬇️
Conventional vs. Enhanced Geothermal: What’s the Difference?
Discover the difference between conventional and enhanced geothermal systems and their potential to deliver abundant, resilient energy almost anywhere.
newscenter.lbl.gov
November 10, 2025 at 7:57 PM
DYK the Earth's heat is a constant, renewable source of energy 🔥♻️⚡️?
In our new Explainer Series, we explain how enhanced geothermal systems (EGS) go beyond natural hot spots to unlock resilient power almost anywhere. Check it out! 🧪 ⬇️
In our new Explainer Series, we explain how enhanced geothermal systems (EGS) go beyond natural hot spots to unlock resilient power almost anywhere. Check it out! 🧪 ⬇️
Reposted by Sylvain Marcoux
Fire, Not Deforestation, Is Now the Amazon’s Biggest Carbon Emitter
In 2010 and 2015, the Amazon endured record-breaking droughts and heat. Again in 2024, records were topped and the fire season was the worst in 20 yrs, with fires emitting more carbon than deforestation.
🧪
eos.org/articles/fir...
In 2010 and 2015, the Amazon endured record-breaking droughts and heat. Again in 2024, records were topped and the fire season was the worst in 20 yrs, with fires emitting more carbon than deforestation.
🧪
eos.org/articles/fir...
Fire, Not Deforestation, Is Now the Amazon’s Biggest Carbon Emitter - Eos
Forest degradation in the Amazon increased by 400% in 2024. It was largely driven by wildfires during the forest’s worst fire season in more than 20 years.
eos.org
November 3, 2025 at 3:02 PM
Fire, Not Deforestation, Is Now the Amazon’s Biggest Carbon Emitter
In 2010 and 2015, the Amazon endured record-breaking droughts and heat. Again in 2024, records were topped and the fire season was the worst in 20 yrs, with fires emitting more carbon than deforestation.
🧪
eos.org/articles/fir...
In 2010 and 2015, the Amazon endured record-breaking droughts and heat. Again in 2024, records were topped and the fire season was the worst in 20 yrs, with fires emitting more carbon than deforestation.
🧪
eos.org/articles/fir...
Reposted by Sylvain Marcoux
🧪
This has been tried for decades and if it worked, we would know by now.
www.theguardian.com/world/2025/o...
This has been tried for decades and if it worked, we would know by now.
www.theguardian.com/world/2025/o...
India trials Delhi cloud seeding to clean air in world’s most polluted city
Bharatiya Janata party launches first test flight as brown haze blankets city after Diwali – but experts decry ‘gimmick’
www.theguardian.com
November 1, 2025 at 2:31 AM
🧪
This has been tried for decades and if it worked, we would know by now.
www.theguardian.com/world/2025/o...
This has been tried for decades and if it worked, we would know by now.
www.theguardian.com/world/2025/o...
Reposted by Sylvain Marcoux
Just got a press release that a *Canadian premier* will keynote the U.S. offshore wind sector's biggest conference. If that's not a sign of the times, not sure what is. 🇨🇦🥴
October 20, 2025 at 2:06 PM
Just got a press release that a *Canadian premier* will keynote the U.S. offshore wind sector's biggest conference. If that's not a sign of the times, not sure what is. 🇨🇦🥴
Reposted by Sylvain Marcoux
Tropical development likely in the Caribbean with #Melissa up next and it's atmospheric river season in the Pacific NW, here comes the #rain in today's update for the All-Hazards Consortium by @geocollaborate.bsky.social. Please stay aware and stay safe. 🧪🌀🌧️
www.youtube.com/watch?v=jAzo...
www.youtube.com/watch?v=jAzo...
Melissa is Likely to Develop in the Caribbean and It's Atmospheric River Season in the West
YouTube video by StormCenter Communications | GeoCollaborate
www.youtube.com
October 20, 2025 at 11:23 PM
Tropical development likely in the Caribbean with #Melissa up next and it's atmospheric river season in the Pacific NW, here comes the #rain in today's update for the All-Hazards Consortium by @geocollaborate.bsky.social. Please stay aware and stay safe. 🧪🌀🌧️
www.youtube.com/watch?v=jAzo...
www.youtube.com/watch?v=jAzo...
Reposted by Sylvain Marcoux
Very important point made in this new piece by Karin Ardon-Dryer. Minute-scale convective dust events are overlooked in urban air quality monitoring.
doi.org/10.1038/s432...
doi.org/10.1038/s432...
Minute-scale convective dust events are overlooked in urban air quality monitoring - Communications Earth & Environment
Very short-lived convective dust events in urban areas are not always captured by traditional air quality monitoring in the USA; finer temporal scale measurements are needed to avoid health risks bein...
doi.org
October 17, 2025 at 1:09 AM
Very important point made in this new piece by Karin Ardon-Dryer. Minute-scale convective dust events are overlooked in urban air quality monitoring.
doi.org/10.1038/s432...
doi.org/10.1038/s432...
Reposted by Sylvain Marcoux
In 2024 the Biden administration signed an agreement with Canada and Finland, named the ICE Pact, to expand capacity. In August the Helsinki shipyard began work on the first ship under the scheme, an icebreaker for Canada named Polar Max.”🇫🇮🇺🇸🇨🇦
economist.com/europe/2025/...
economist.com/europe/2025/...
How bad is America’s icebreaker gap with Russia?
Finland has something special that America wants
economist.com
October 5, 2025 at 3:06 PM
In 2024 the Biden administration signed an agreement with Canada and Finland, named the ICE Pact, to expand capacity. In August the Helsinki shipyard began work on the first ship under the scheme, an icebreaker for Canada named Polar Max.”🇫🇮🇺🇸🇨🇦
economist.com/europe/2025/...
economist.com/europe/2025/...
Reposted by Sylvain Marcoux
It’s amazing how much Carbon is stored *underneath* forests
September 27, 2025 at 2:55 AM
It’s amazing how much Carbon is stored *underneath* forests
Reposted by Sylvain Marcoux
Percent of normal precipitation across the U.S. for the past 30 days. Most of the eastern half of the country received 50% or less of normal rainfall. Areas in red received 25% or less of normal rainfall. Some parts of the Plains and the West got ample precipitation.
🧪
hprcc.unl.edu/maps.php?map...
🧪
hprcc.unl.edu/maps.php?map...
September 24, 2025 at 5:07 PM
Percent of normal precipitation across the U.S. for the past 30 days. Most of the eastern half of the country received 50% or less of normal rainfall. Areas in red received 25% or less of normal rainfall. Some parts of the Plains and the West got ample precipitation.
🧪
hprcc.unl.edu/maps.php?map...
🧪
hprcc.unl.edu/maps.php?map...