Sylvain Marcoux's Avatar

Sylvain Marcoux

@sylvainmarcoux

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

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Latest posts by Sylvain Marcoux @sylvainmarcoux

A graph of the official NOAA Climate Prediction Center ENSO probabilities.

A graph of the official NOAA Climate Prediction Center ENSO probabilities.

A shift from La Niña to ENSO-neutral is expected in the next month, with ENSO-neutral favored through May-July 2026 (55% chance). In June-August 2026, El Niño is likely to emerge (62% chance) and persist through at least the end of 2026.

#LaNina #ENSO #ElNino 🧪
www.cpc.ncep.noaa.gov/products/ana...

12.03.2026 14:34 👍 7 🔁 4 💬 0 📌 0
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Rubio: “Let me tell you, Iran is run by lunatics, religious fanatic lunatics.”

05.03.2026 21:09 👍 3897 🔁 1805 💬 408 📌 350

Let’s be clear about what the Trump regime is saying to Minnesota: “We will continue murdering your citizens unless you help us rig your election.”

25.01.2026 04:35 👍 2031 🔁 758 💬 60 📌 24

*maybe

25.01.2026 17:54 👍 0 🔁 0 💬 0 📌 0

Drop copies from aircrafts: Tomtrails (ok may be not)

25.01.2026 17:52 👍 2 🔁 0 💬 1 📌 0

I really think The Death of Expertise should be required reading in High school. It should re-released today. It becomes more relevant every year.

25.01.2026 17:47 👍 12 🔁 4 💬 2 📌 1

And when asked to « explain something from the beginning », I always reply « well, early sumerians had no concepts of zero… »

25.01.2026 17:45 👍 6 🔁 0 💬 0 📌 0
Red colored line graph time series of global atmospheric methane abundance from January 1984 through September 2025. Methane abundance is measured in units of parts per billion. Current levels are 1941 ppb. A seasonal cycle is visible on the graph. There is also decadal variability and a long-term increasing trend.

Red colored line graph time series of global atmospheric methane abundance from January 1984 through September 2025. Methane abundance is measured in units of parts per billion. Current levels are 1941 ppb. A seasonal cycle is visible on the graph. There is also decadal variability and a long-term increasing trend.

Here are the latest monthly-averaged observations of global methane (CH₄; a potent greenhouse gas)...

September 2025 - 1940.59 ppb
September 2024 - 1934.39 ppb

+ Data: gml.noaa.gov/ccgg/trends_...
+ Learn more: doi.org/10.5194/essd...

12.01.2026 12:55 👍 70 🔁 24 💬 2 📌 1
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Scientists detect plastic clouds hovering over Chinese cities Previous studies have underestimated amount of plastic in atmosphere, scientists say

"Chinese scientists have detected plastic particle clouds hovering in the air over two large cities, indicating that these potentially toxic particles are far more abundant than previously thought."

www.independent.co.uk/news/science...

12.01.2026 12:07 👍 24 🔁 12 💬 0 📌 4
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Why Labrador Sea Convection Doesn’t Drive The AMOC: A Simple Explanation The oceanography community is deeply engaged in a debate about how much weight the Labrador Sea actually carries in maintaining the Atlantic Overturning Circulation (AMOC) system. According to the …

Convection ≠ Overturning: Why Labrador Sea convection doesn’t drive the AMOC: A simple explanation 🌊🧪 ocean2climate.org/2026/01/10/w...

10.01.2026 17:36 👍 24 🔁 8 💬 2 📌 0
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North Atlantic Ocean Is Aging Fast This blog post and the “Deep Dive” podcast, created by NotebookLM, are based on “North Atlantic ventilation change over the past three decades is potentially driven by climate change” by Guo et al.…

The North Atlantic is aging fast and losing its breath, new study finds: 🌊🧪 ocean2climate.org/2026/01/10/n...

10.01.2026 14:53 👍 25 🔁 13 💬 1 📌 2
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Furious Trump demands to know why Minneapolis shooting hasn’t sparked civil war yet MAR-A-LAGO, FL - Following the shooting death of a Minneapolis woman at the hands of ICE agents, President Donald Trump is ordering Americans to "hurry the fuck up" descending into a nationwide confli...

Furious Trump demands to know why Minneapolis shooting hasn’t sparked civil war yet

10.01.2026 15:36 👍 342 🔁 71 💬 9 📌 5
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How Do We Know That the Earth is Warming Up? - Little, Big Science The Earth is warming due to the increasing concentration of greenhouse gases in the atmosphere. While the temperature increase is attributed to human activity, in this post we will focus solely on the...

🧪We all know there is global warming.. hopefully. Well, how do we know? 🌍Measurements, global collaboration and a bit of physics:

www.lbscience.org/en/2025/12/1...

@lbscience.org

09.01.2026 01:05 👍 39 🔁 18 💬 1 📌 0
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NOAA Study Finds Southern Plains 2020-2025 Drought Cost Ag $23 Billion Significant losses in wheat, cotton and livestock occurred during the Southern Plains five-year drought.

Southern Plains Drought in 2020-2025 Cost Ag $23 Billion

Drought in the Southern Plains during 2020-2025 caused an economic loss of more than $23 billion to agriculture in Kansas, Oklahoma and Texas. Crop yields were low, and cattle herds were sold.

#drought 🧪

www.drought.gov/news/souther...

08.01.2026 00:55 👍 27 🔁 8 💬 1 📌 3

Someone wants to play Risk fullsize

08.01.2026 13:11 👍 0 🔁 0 💬 0 📌 0
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Stephen Miller goes on a rant defending Trump's imperialist aggression against Venezuela: "We’re a superpower… we are going to conduct ourselves as a superpower."

Jake Tapper: "I don't even know what you're talking about right now."

05.01.2026 23:06 👍 741 🔁 188 💬 138 📌 146
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Americans do not want war with Venezuela Military intervention in the country is even more unpopular than Trump’s tariffs and health care cuts

Americans do not want war with Venezuela

Military intervention in the country is even more unpopular than Trump’s tariffs and health care cuts.

05.01.2026 14:44 👍 888 🔁 335 💬 86 📌 11

I'm not one to cite Thucydides all the time, but the saying "The strong do what they can and the weak suffer what they must" bears repeating these days.

Europe's decisionmakers should take note.

05.01.2026 14:55 👍 73 🔁 22 💬 3 📌 1
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🚨🚨🚨 2025 finished in the top 10 for warmest year on record in the Contiguous U.S. (1895-present). For most of the areas from the Rocky Mountains westward, it was a top 5 warmest year. No areas had a historically cool year.

01.01.2026 17:48 👍 119 🔁 55 💬 6 📌 5
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From invasive species tracking to water security – what’s lost with federal funding cuts at US Climate Adaptation Science Centers The people who manage America’s aquifers, wetlands, shorelines and recreation areas rely on federal science as they face new and rising risks in a changing climate.

You probably heard the US admin is threatening to break up the National Center for Atmospheric Research: but did you know they already froze funding for the 9 regional Climate Science Adaptation Centers? From tracking invasives to helping tribes with drought, here's why the CASCs matter ⬇️

29.12.2025 12:02 👍 467 🔁 264 💬 8 📌 8
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People Who Drink Bottled Water on a Daily Basis Ingest 90,000 More Microplastic Particles Each Year Drinking water in plastic bottles contains countless particles too small to see. New research finds that people who drink water from them on a daily basis ingest far more microplastics than those who ...

I wrote a book about the problems with bottled water ("Bottled and Sold") several years ago. Here's just another reason to avoid it.
www.wired.com/story/people...

28.12.2025 14:24 👍 119 🔁 61 💬 5 📌 0
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Please read

www.forbes.com/sites/marsha...

19.12.2025 02:03 👍 146 🔁 70 💬 0 📌 5
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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

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.

08.12.2025 20:23 👍 8 🔁 5 💬 0 📌 0
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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.

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...

08.12.2025 16:39 👍 122 🔁 70 💬 3 📌 2
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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.

Les faucons, ces précieux alliés des producteurs de cerises

07.12.2025 15:00 👍 39 🔁 13 💬 1 📌 1
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Sunday thought: Really, truly, the end of Trump is near MAGA is cracking up, but beware

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

07.12.2025 15:01 👍 1420 🔁 386 💬 86 📌 15
The snow water equivalent map of the western U.S. shows much below normal values for much of the region.

The snow water equivalent map of the western U.S. shows much below normal values for much of the region.

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...

05.12.2025 21:39 👍 32 🔁 17 💬 1 📌 2

“the combat decisions HE has made”

02.12.2025 02:08 👍 1764 🔁 265 💬 101 📌 13
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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.

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

02.12.2025 02:18 👍 458 🔁 144 💬 35 📌 10

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).

30.11.2025 05:55 👍 1953 🔁 439 💬 46 📌 34