Indeed this is an excellent nuanced and optimistic response to Bill Gates by @hausfath.bsky.social ! (Though admittedly less entertaining than @climateadam.bsky.social.) It’s a good example of how to debate constructively about solving the #climatecrisis.

“The death of human empathy is one of the earliest and clearest signs of a culture descending into barbarism.” Hannah Arendt

Today the 2025 State of the Cryosphere report was published by over 50 leading cryosphere scientists. An urgent warning about the global consequences of the meltdown of ice, including the risk of shutdown of the Atlantic Ocean current system #AMOC. 🌊 iccinet.org/statecryo25/

What did Bill Gates actually write? What is right and what is bizarre about it? And how was it then distorted by the media? Climate Adam explains it in his inimitable way. Check it out!https://youtube.com/watch?v=9MmqKEkOtwo

Guterres is right. Even a temporary overshoot could unleash far greater destruction and costs for every nation. It could push ecosystems past catastrophic and irreversible tipping points. Fossil fuel companies are deceiving the public and obstructing progress. www.theguardian.com/environment/...

Hier habe ich vor Jahren schon erklärt, warum die Erderwärmung Tropenstürme verschlimmert: www.spiegel.de/wissenschaft... Die Katastrophen häufen sich - unfassbar wie zeitgleich die Politik den Klimaschutz verwässert statt zu beschleunigen. Die Emissionen wirken kumulativ und müssen schnell runter.

I feel like "the ocean makes half the O2 we breathe" is the chemical oceanographers version of the "gulf stream = AMOC" misunderstanding physical oceanographers deal with... 🌊

New national climate plans have barely moved the needle on limiting global warming. Yet there is hope. According to UNEP's latest #EmissionsGap Report, accelerated adoption of renewable energy and falling costs mean we have the tools to cut emissions now: www.unep.org/news-and-sto...

Most Americans support the Paris Agreement. Seems hard to believe right now. But notice the downtick/ uptick after presidential elections. Less people care when they think the government is on it. But when the government is out, interest grows again. climatecommunication.yale.edu/publications...

Huge congratulations to Harvard’s Naomi Oreskes for winning the Volvo prize! She is a pioneer in unmasking the financial interests and methods behind climate science denial. I’m proud to have published with her how Exxon knew exactly what they were doing. www.environment-prize.com/laureates/na...

New study in Nature by Lin et al shows how the sea-level rise from the melting Ice Age ice (a total of 120 meters rise) ended thousands of years ago. Until our fossil fuel use started a new phase of rising seas. Graph shows the global mean rate of sea level rise. 🌊 www.nature.com/articles/s41...

A scoop that I’m not happy to report: CBS News has gutted its climate change reporting team, one of the best in the business, and one of the only ones on cable news that consistently called out fossil fuels as the main source of climate pollution. heated.world/p/cbs-news-k...

All you need to know about Bill Gates' long-standing and misguided take on climate change. 'The solution to the climate crisis isn’t going to come from the fairy-dust-sprinkled flying unicorns that are the “benevolent plutocrats.” They don’t exist.' thebulletin.org/2025/10/you-...

Extended hurricane category scale, following Wehner&Kossin, Proceedings of the National Academy 2024: www.pnas.org/doi/abs/10.1... If that scale didn't stop at Category 5 for historic reasons, we would have had several Category 6 tropical cyclones since year 2000.

Quote to remember: “Trees fall naturally in the forest, and chainsaws are not a hoax.”

With 40 cm of snow left on the ground last Wednesday, Iceland’s capital, Reykjavík, officially experienced its biggest October snowstorm on record. This historic event shattered a 104-year-old record by 25 cm.

Great listing of climate films! I would have added ‘Chasing Ice’.

AXA and Ipsos have published the 12th edition of the Future Risks Report, a report based on a global survey of 23,000 citizens and 3,595 risk experts. What do both experts and citizens rank as greates risk? *** Climate change *** So do I, after over 35 years experience in climate science.

Important thread. "I don't think many folks, apparently including Gates & advisors, appreciate just how radically transformed a 2.5-3C warmer world would be." Indeed that is the key problem. They don't get it. But whenever we try to state it clearly, it's dismissed as alarmist. Catch 22.

The annual 10 new insights in climate science are here! Perhaps the best way to keep up with climate science news of the past year, made for lay people, policy makers and scientists alike with its different levels of detail: from simple tiles to a journal paper. 10insightsclimate.science#explore

That is what happens when a government beholden by fossil fuel interests attacks science they don’t like. x.com/i/trending/1...

ChatGPT cited a paper of mine which I did not know existed, so I asked it for the link to it. Unfortunately that link to the Nature website just gave a "Page not found". So sad.

Eine halbe Million Hitzetote jährlich, dazu 2,5 Millionen Tote durch Luftverschmutzung wegen der Verbrennung fossiler Energien. Immer krassere Wetterextreme. Und Regierungen geben 956 Milliarden $$ für fossile Subventionen aus. Unser Geld. Was geht hier schief? www.handelsblatt.com/politik/inte...

Worried about shutdown of the Atlantic overturning circulation #AMOC? The collapse of the subpolar gyre is a likely step on the way to that and could happen a lot sooner. Not quite as bad as full AMOC shutdown, but could bring major impacts already in 10-20 years. Important study on the mechanism ⬇️!

Short summary of key points how global warming makes tropical cyclones more destructive.

Here's now a map view of the warming of the Caribbean during the months of September to November. While there are many environmental factors that impact hurricane intensity, this warming certainly plays a role in fueling that rapid intensification. More views at zacklabe.com/united-state... 🌊

Climate deniers getting ready to claim that climate change did not make the damage from Hurricane Melissa worse. This is misinformation.

I can think of at least seven ways fossil fuel producers could wiggle out of this, but still: holy shit this is huge.

Wissenschaft ist kein Wunschkonzert der Reichen und Mächtigen, die missliebige Forschung - etwa die Klimaforschung - am liebsten abschaffen und unterdrücken wollen. Deshalb habe ich das Hamburger Manifest unterschrieben. Es ist auch ein Appell an Forscherkollegen. Hier ist es: openpetition.de/!hcbrf

Since 2013, five tropical cyclones would have been category 6 - if the traditional hurricane scale didn’t stop at 5. Unlike, say, the Richter earthquake scale and the Celsius scale. Hurricanes are getting so intense, scientists propose a Category 6 #Melissa www.washingtonpost.com/weather/2024...

Neues Interview, ohne paywall. www.zeit.de/politik/2025...

Here is a new short interview I did about the risk of a major ocean circulation change in the Atlantic. #AMOC Check it out - e.g. if you are unclear about the difference between the tipping point and the point of shutdown. cwrrr.org/interviews/c...

A particularly insidious form of attacks on science by the Trump administration: @lewan.bsky.social describes "another of at least 318 actions against science that the second Trump administration has taken since the president took office in January 2025." www.science.org/doi/10.1126/...

Really important paper led by my @iiasa.ac.at colleague Alex Nauels www.nature.com/articles/s41... “The difference between decisive climate action today and continued high emissions is not just measured in degrees of warming but also in meters of sea-level rise” 👏👏👏

US climate disasters in first half of 2025 costliest ever on record, research shows - Trump administration had “retired” the 45-year NOAA dataset but @climatecentral.org un-retired it #climatecrisis www.theguardian.com/environment/...

New study by Falkena et al. shows that most climate models don’t capture the established key mechanism that can destabilize the North Atlantic subpolar gyre. Those models that get it predict abrupt subpolar gyre changes in coming decades 😳. @swinda.bsky.social esd.copernicus.org/articles/16/...

Wow, this is disappointing. This meeting was supposed to be a final confirmation of a deal agreed six months ago, and it would have been the first serious step in making the slow-to-change shipping industry cleaner & greener & ready for the future. The delay only hurts everyone in the long run. 🌊

The floating French Tara Polar Research Station in Reykjavik harbor.

Obama‘s former science advisor John Holdren speaking right now on the threats to the future of science through demagoguery, misinformation and autocratic leaders. #ArcticCircle

„This is a national security issue!“ says Dame Angela McLean, the UK Government Chief Scientific Adviser, about the collapse risk of the North Atlantic subpolar gyre. Interesting discussion on Forecasting Arctic Tipping Points - Building an Early Warning System for Everyone, at #ArcticCircle.

Good discussion this morning at the #ArcticCircle Assembly on the risk of pushing the Atlantic overturning circulation #AMOC beyond a dangerous tipping point. The Icelandic government considers that a serious national security threat for Iceland. 🌊

Ahead of #COP30, a team of climate policy experts including PIK director Johan Rockström warn in a commentary in Nature that low-quality carbon offsets are undermining global decarbonisation efforts, calling for stronger standards, real removals and fewer excuses: www.pik-potsdam.de/en/news/late...

⚠️ The new Global Tipping Points Report is out and warns of potential risks to the Atlantic Ocean Circulation – however, there are large uncertainties about when, or if, the tipping points will be crossed. 🧪🌊 bjerknes.uib.no/en/news/to-s...

📢 OUT NOW: Global Tipping Points Report 2025 In this new report, we provide a check on the status of critical Earth system #TippingPoints and opportunities in #PositiveTippingPoints across sectors. ➡️ Full report: global-tipping-points.org #GTPR2025 #COP30 @exeter.ac.uk @pik-potsdam.bsky.social

𝗚𝗹𝗼𝗯𝗮𝗹 𝗧𝗶𝗽𝗽𝗶𝗻𝗴 𝗣𝗼𝗶𝗻𝘁𝘀 𝗥𝗲𝗽𝗼𝗿𝘁 zeigt: Mehrere Kipppunkte könnten bei 1,5-Grad-Erderwärmung überschritten werden. Warmwasser-Korallenriffe an kritischem Punkt. Aber: Positive Kipppunkte können den Negativtrend wenden. Mehr dazu 👉https://www.tagesschau.de/wissen/klima/kipppunkte-risikozone-100.html

160 scientists, 23 countries, 1 report: The Global Tipping Points Report 2025, together with @exeter.ac.uk, highlights mounting risks across Earth’s systems, from melting glaciers & ice fields to slowing ocean currents, ice sheets & rainforests under pressure. Watch now👇 👉global-tipping-points.org

Sanity says: “if there is a risk that the AMOC is weakening and heading towards a tipping point, we need to act on that (just like with other major risks). This is not an issue where we can afford to wait until we are certain, or pretend it’s just an academic discussion without major consequences.”

“We have more & more evidence for tipping points in all these different systems” warns @pik-potsdam.bsky.social scientist Sina Loriani...“There is an increasing risk that we kick off feedback loops that amplify & accelerate changes in the Earth system” #ClimateEmergency

High resolution images from satellite and from eddy-resolving ocean circulation models point to an ongoing decline of the Atlantic overturning circulation, a key ocean current for our climate. Read more about it in my new blog article. 🌊 www.realclimate.org/index.php/ar...