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Denis Gilbert 🌎 @denis-gilbert.ca · 2d

Merci Isabelle!

Denis Gilbert 🌎 @denis-gilbert.ca · 4d

The Saxby Gale severely hit Atlantic Canada on October 4 & 5, 1869. On the 150th anniversary of this storm, @ryansnoddon.bsky.social wrote a nice summary of its evolution and impacts, including major flooding between Amherst and Sackville.

www.cbc.ca/news/canada/...

#SaxbyGale #stormsurge

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Denis Gilbert 🌎 @denis-gilbert.ca · 8d

Le 17 août 2017 occupe une place spéciale dans la mémoire des astrophysiciens. En cette journée, les caractéristiques d'un événement d'ondes gravitationnelles ( #GW170817) suggèrent la première détection d'une fusion d'étoiles à neutrons.

denis-gilbert.ca/fr/2025/04/1...

#astronomie #Einstein

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Reposted by Denis Gilbert 🌎

Zack Labe @zacklabe.com · 10d

"After nearly 40 years, the Arctic Research Consortium of the United States, or ARCUS, will close September 30."

"The Arctic Research Consortium of the United States funded programs that aided Indigenous communities and tracked melting sea ice, among dozens of initiatives."

After Trump cut the National Science Foundation by 56 percent, a venerable Arctic research center closes its doors

The Arctic Research Consortium of the United States funded programs that aided Indigenous communities and tracked melting sea ice, among dozens of initiatives.

grist.org

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Denis Gilbert 🌎 @denis-gilbert.ca · 12d

Fall colors / Couleurs d'automne

📍Saint-Anaclet-de-Lessard, Québec, Canada

#Nature #Photography #NaturePhotography

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Reposted by Denis Gilbert 🌎

Prof. Bob Howarth @profbobhowarth.bsky.social · 12d

This can't be good: "Over the past three years, leading tech firms have committed more toward AI data centers, plus chips and energy, than it cost to build the interstate highway system over four decades, when adjusted for inflation."
www.wsj.com/tech/ai/ai-b...

Spending on AI Is at Epic Levels. Will It Ever Pay Off?

Tech companies are pouring hundreds of billions into data centers, taking on heavy debt, but current revenue is relatively tiny. Critics warn of a new dot-com bubble.

www.wsj.com

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Denis Gilbert 🌎 @denis-gilbert.ca · 14d

Good to know that AI hallucinations are here to stay. A few months ago, following one of its upgrades, ChatGPT's hallucination rate dropped from above 10% (11%? or 12%?) to slightly below 10% (9.6%?). I wonder if there's a theoretical limit to how low this AI hallucination rate can drop. 8%? 5%? 1%?

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Denis Gilbert 🌎 @denis-gilbert.ca · 19d

How does oxygen get from the ocean surface layer to the ocean's intermediate depth and bottom waters? 🧪🌊

I wrote a brief overview of the processes involved and the key regions of ocean ventilation:

denis-gilbert.ca/en/2025/04/1...

#ocean #oceanography #oxygen #popularscience #science

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Denis Gilbert 🌎 @denis-gilbert.ca · 27d

This made me shiver. So good to have you with us Bob!

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Denis Gilbert 🌎 @denis-gilbert.ca · 29d

Beaver seen in the wild yesterday! 😍

Castor observé hier après-midi dans un cours d'eau de Saint-Valérien (Québec, Canada). 😍

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Denis Gilbert 🌎 @denis-gilbert.ca · Aug 27

En plus, regarder la nouvelle Lune peut parfois s'avérer dangereux, tout dépendant de la proximité du soleil dans le ciel.

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Denis Gilbert 🌎 @denis-gilbert.ca · Aug 27

Distortions in area are indicated by variations across the map in the area enclosed by Tissot indicatrices. Distortions in angles are indicated by departures from circularity of the Tissot indicatrices. I will provide more technical details about these maps in an upcoming blog post. #mapping

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Denis Gilbert 🌎 @denis-gilbert.ca · Aug 27

Map projections make compromises between accurately representing either area, angles, or distances. Tissot indicatrices (blue circles & ellipses) inform us visually about map distortions. Standard parallels here are at 50°N and 70°N for the Albers and Lambert projections. 🧪
#maps #mapping #Canada

Lambert conformal conic projection map of Canada.

Albers equal-area conic projection map of Canada.

Mercator conformal cylindrical projection map of Canada.

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Reposted by Denis Gilbert 🌎

Prof. Bob Howarth @profbobhowarth.bsky.social · Aug 26

My 2024 peer-reviewed paper on why LNG is so terrible for the climate has now been translated into Spanish. Please share with Spanish-speaking friends and colleagues.

opsur.org.ar/wp-content/u...

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Reposted by Denis Gilbert 🌎

Dakota Smith @weatherdak.bsky.social · Aug 19

Hurricane Erin this evening.

A stunning satellite shot.

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Denis Gilbert 🌎 @denis-gilbert.ca · Jul 30

Forest fire plumes of fine particulate matter - forecast until Friday morning (2025-08-01).
#smoke #forestfires #fires #airquality

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Denis Gilbert 🌎 @denis-gilbert.ca · Jul 20

So many different time scales to deal with! Good luck in your future endeavors.

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Reposted by Denis Gilbert 🌎

Prof. Bob Howarth @profbobhowarth.bsky.social · Jul 12

Sen Cruz inserted language into the Republicans’ “big beautiful” bill to eliminate funding for improvements in weather forecasting and dissemination of forecasts & warning to the public.
www.theguardian.com/us-news/2025...

Ted Cruz ensured Trump spending bill slashed weather forecasting funding

Senator on vacation abroad while Texas was hit by deadly floods, a disaster worsened by forecasting cuts, critics say

www.theguardian.com

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Denis Gilbert 🌎 @denis-gilbert.ca · Jul 10

For Canadians who contemplate migrating their web hosting to servers physically located in Canada and subject to Canadian laws, hesitate no more! It's easier and faster than you might think. I did it this spring!

Listen to this @ambermac.bsky.social interview with Emil Falcon, CEO of @whc.ca.

Web Hosting Canada @whc.ca · Jul 10

🎧 Our CEO, Emil, joined The AmberMac Show podcast to talk about local hosting, data protection, and why hosting your website in Canada truly matters.

A great conversation with @ambermac.bsky.social—tune in here 👉 youtu.be/Il_kMIocJOU?...

Hosting Your Website in Canada with WHC: The AmberMac Show Ep 014

YouTube video by Amber Mac

youtu.be

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Denis Gilbert 🌎 @denis-gilbert.ca · Jul 9

Yep, but the underlying rate of global warming has accelerated since 1998, so that the recent La Nina event will not mask warming for as long as it did back in the years following 1998. That would be my educated guess for the next few years.

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Denis Gilbert 🌎 @denis-gilbert.ca · Jul 9

Right, we know this story all too well. Especially in the years following the 1997-1998 El Niño.

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Denis Gilbert 🌎 @denis-gilbert.ca · Jul 9

Always interesting to see how successive El Niño events and La Niña events modulate the global warming time series. The 1997-1998, 2015-2016, 2018-2019 and 2023-2024 El Niño events are easily detectable as bumps in this graphic from @copernicusecmwf.bsky.social.

#ECMWF #GlobalWarming #ENSO #ElNiño

Display of global surface air temperature anomalies relative to the pre-industrial (1850-1900) average.

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Denis Gilbert 🌎 @denis-gilbert.ca · Jul 9

Interesting read, thanks!

Something I learned in the last sentence: "while people can be fined for starting wildfires, they can also be fined for not reporting them."

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Reposted by Denis Gilbert 🌎

Michael White @mwclimatesci.bsky.social · Jul 7

I know that job situations have likely changed for many in climate research. If you are looking for a new opportunity, maybe consider our current opening for the Chief Editor at Nature Geoscience. www.nature.com/naturecareer...

Chief Editor, Nature Geoscience - New York City, New York (US) job with Springer Nature Ltd | 12840758

Job Title: Chief Editor, Nature Geoscience Location(s): New York, Shanghai, or Beijing (Internal candidates from hub locations are welcome to apply...

www.nature.com

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Denis Gilbert 🌎 @denis-gilbert.ca · Jul 9

I'm curious about the sentence on arson being the cause of multiple fires. Is there some legitimacy to this claim?

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