Aurélie Demesse

La 7e limite planétaire est officiellement dépassée : l'acidification des océans C'est officiel, nous avons dépassé la 7e limite planétaire, celle de l'acidification des océans. C'était attendu par le

C’est officiel, nous avons dépassé la 7e limite planétaire, celle de l’acidification des océans.

Vous ne lirez rien de plus important aujourd'hui. A partager massivement !
bonpote.com/la-7e-limite...

Il y a moins de 3 ans, personne n'utilisait ChatGPT. Aujourd'hui, c'est semble-t-il devenu indispensable pour des millions de Français. Mais à quel prix ?

Consommation d'électricité, consommation d'eau, extraction de matières premières... l'intelligence artificielle est un gouffre énergétique.

I've often warned the real risk of AI images is giving people the ability to deny the real images more than making them believe things that aren't true.

New images could change cancer diagnostics, but ICE detained the Harvard scientist who analyzes them Without scientist Kseniia Petrova’s expertise, no one can fully unlock the data’s potential, putting crucial advancements in early cancer detection at risk.

“A groundbreaking microscope at Harvard Medical School could lead to breakthroughs in cancer detection... But the scientist who developed computer scripts to read its images and unlock its full potential has been in an immigration detention center for two months” www.nbcnews.com/news/us-news...

wake up! you’re already behind on so much bad news!

Rising global temperatures can influence the timing of events, such as when crops are ready to plant and harvest and when flowers and trees bloom.

One example is the timing of the peak cherry tree blossom in Kyoto, Japan, where records stretch back to the ninth century — that’s over 1200 years.

The Trump Administration Accidentally Texted Me Its War Plans U.S. national-security leaders included me in a group chat about upcoming military strikes in Yemen. I didn’t think it could be real. Then the bombs started falling.

You cannot make this shit up. Sharing this jaw-dropping story with a gift link -- give it a read.

UK insurers paid out record £585m last year as climate breakdown intensifies Insurers blame ‘significant and consistent bad weather’ after year of 12 named storms

Expect your home insurance premiums to go up as bad weather gets worse. Wouldn't it be better if the companies causing global heating were to pay up instead 🤷🏽
www.theguardian.com/uk-news/2025...

Opinion | That Giant Sucking Sound? It’s Climate Change Devouring Your Home’s Value. A new analysis predicts an extraordinary reversal in housing fortunes for Americans.

You can ignore climate change. The political system can ignore climate change. But the insurance industry cannot ignore climate change.

Mortality impacts of the most extreme heat events - Nature Reviews Earth & Environment Extreme heat is increasing in magnitude and frequency, threatening human health. This Review assesses mortality risk associated with extreme heat, revealing that human thermal tolerances (that is, unc...

🔥🌡 Extreme heat is getting deadlier

Since 2000, over 260,000 deaths have been linked to extreme heat.

If global warming hits 2°C, areas where heat surpasses human survival limits will triple

🔗 www.nature.com/articles/s43...

#ClimateChange #ExtremeHeat #SciComm 🧪

Mapping global financial risks under climate change - Nature Climate Change Climate change will impact financial stability, but the quantitative evidence on the magnitude of such risks is still rare. With a forward-looking structural credit-risk model, researchers map how phy...

🛑 Climate Risks & Financial Stability 💰

A study finds that extreme weather events (floods, storms, wildfires) could significantly amplify financial losses due to firms' debt burdens

Should financial regulators take stronger action?

🔗 www.nature.com/articles/s41...

#ClimateChange 🧪 #SciComm

I am glad that NOAA greenhouse gas monitoring information is back online - the website was inaccessible due to planned power maintenance.

I have removed my earlier message.

It's a bummer that this is necessary, but the federal data archiving collaboration we're part of has created an independent mirror of the EJScreen tool here: #EnergySky

screening-tools.com/climate-econ...

i long for precedented times

Bioaccumulation of microplastics in decedent human brains - Nature Medicine Pyrolysis gas chromatography–mass spectrometry reveals the presence of microplastics and nanoplastics in human kidney, liver and brain tissue samples from 2016 and 2024, with higher proportions found ...

🧠⚠️ Microplastics found in human brains

New research confirms microplastics accumulate in human brains, with concentrations increasing over time.

Higher levels were also found in dementia cases.

cc. @nataliegreenpeer.bsky.social 😞

🔗 www.nature.com/articles/s41...

#Microplastics #SciComm 🧪

Climate data from @copernicusecmwf.bsky.social shows, it is virtual certainty that 2024 will be the warmest year on record and the first calendar year above 1.5°C.
This does not mean the Paris Agreement has been breached, it means ambitious #climateaction is more urgent than ever

🧪⚒️🌏🌡️📈

Dirigé volontairement pour mettre en lumière la majorité des cas*

Polar stereographic map showing 2-m air temperature anomalies in October 2024 for the Arctic Circle with red shading for warmer anomalies and blue shading for colder anomalies. Most areas are warmer than average and well exceeded the colorbar maximum of 5°C above average. The baseline is a 1981-2010 reference period using ECMWF ERA5 data.

Yes, I realize that my usual temperature anomaly scale is less than ideal for visualization purposes in this image here. But that's also because the #Arctic was absurdly warm compared to the 1981-2010 climatological average in October 2024.

Data from @copernicusecmwf.bsky.social ERA5 reanalysis.

I feel seen

Revealed: Saudi Arabia accused of modifying official Cop29 negotiating text Exclusive: News of changes to usually non-editable document ‘risks placing climate summit in jeopardy' A Saudi Arabian delegate has been accused of directly making changes to an official Cop29 negotiating text, it can be revealed. Cop presidencies…

Revealed: Saudi Arabia accused of modifying official Cop29 negotiating text

Just to emphasize: Saudi Arabia *and only Saudi Arabia* was sent a draft of the COP29 negotiating documents *by the COP presidency* so that Saudi Arabia alone *could edit it directly*.

Meet the World’s Most Controversial Climate Capitalist As negotiators at COP29 struggle to define or finance the energy transition, Exxon CEO Darren Woods turned up with a pitch of his own. An annotated interview.

I got to interview the CEO of ExxonMobil for a climate podcast. The prep was intense. Then with the Bloomberg Green crew, we just published an epic annotated transcript. Give it a read and share your feedback!
www.bloomberg.com/news/feature...

And now a look at 100 years of average January to October temperature anomalies over land areas through 2024...

Data from NOAAGlobalTemp v6.0.0: www.ncei.noaa.gov/products/lan...

The problem with Bluesky is people know so many things and share these very interesting things that make me want to learn so many new things and time is finite.

#COP29 plenary

EU "very much concerned" on mitigation text "we need a much stronger language on the concrete follow up to GST"

"[Climate extremes] in Africa, the Americas, our friends in the Caribbean & the Pacific…shows we need to do more, not less, than the UAE consensus on mitigation"


1/11

COP29, J-1 (en principe), une proposition de textes sur la table. Deux options principales aux antipodes. Version jugée "totalement inacceptable" par le commissaire européen au #climat Wopke Hoekstra Comment se fait-il qu'on ne soit pas étonné? #çavadurer #planète

It’s our urgent job to show that people don’t need to choose between caring about the fires and storms threatening their homes and their equally urgent need to economically survive.

(6/8)