KarSteN Haustein
@khaustein
Human | Climate Scientist | Meteorologist | Stormchaser | Queer @unileipzig | ex-@ecioxford | @S4F | YIMBY | he/him 🏳️🌈🏳️⚧️🦄 💕 #bekind #diversity #equality #empathy #inclusivity #fightfascism #WakeTheFuckUp!! #TeamJoyResistance
Ready for the Eclipse in the middle of Spanish nowhere 🇪🇸 🏜️🌵 #ElectricMobility #SolarEclipse
July summary: France has been baking for a 2nd month in a row. So has England to a lesser extent. Both are in deep drought with London crossing the 40 day no-rain mark on Tuesday (and counting). Eastern Europe got the cool stick. Germany a tug of hot and cool war. www.karstenhaustein.com/climate
The battle of two pre-El-Niño July: '23 vs '26! Antarctica & North Atlantic holding out cool-ish this month compared to July '23. UK / France amongst the current hot spots. Wildfires (FR and ES) as well as record drought (S England) are the result 🔥 #ClimateEmergency www.karstenhaustein.com/climate
In case anyone is still listening: 14.500 excess deaths have been recorded during the June heatwave in Germany alone. At least 70% (i.e. ~10.000 premature deaths) r due to man-made climate change in 1 week. The conservative RKI numbers r certainly a massive underestimate! www.rki.de/DE/Themen/Ge...
Leipzig Pride aka CSD in full swing. @unileipzig.bsky.social also present with the diversity team #HappyPride
July increasingly becomes a carbon copy of February. Jan and April not too dissimilar either The contrast between Western and Eastern Europe in 2026 couldn't be more stark From Atlantic warming hole (AMOC slowdown) to random variability, there's a long list of possible explanations #ClimateChange
The warmest or 2nd warmest June is in the books. Hot in Siberia, Canada and Europe. El Niño clearly visible already. Thank your local fossil fuel lobbyist and the tech-oligarchs for an even balmier and sweatier future. www.karstenhaustein.com/climate
Who knew that climate change and massive asphalt highways in the middle of a large city might not be the ideal combination. But what do I know? Also, who sold them this cheap material? Clearly, more heat resistent materials exist. #ClimateEmergency #Glutofen
That’s how it looks in real life 🔥🤡 Now we know the melting point of this cheap material. It’s approx 40°C (Tmax 41°C). If only someone could have warned us 🙄🤷🏽♂️
The ongoing EU heat wave is undoubtedly already historic. The extent of Saturdays convective activity determines Germany's fate on Sunday. Everything from mind-boggling 43°C to just above 40°C is up for grabs. Extremely dangerous, but synoptically tantalizing 🔥 kachelmannwetter.com/de/modellkar...
It shapes up to be a dangerously brutal and - likely - historic heatwave in Central Europe, especially France and its capital. #ClimateEmergency www.karstenhaustein.com/climate
I`d argue it's atmospherically forced :) May SAT vs May SST (note the different scale)
April coming to a close. Probably 5th warmest on record. Canada still on the cool end of things, while Mongolia and large parts of China have been baking compared to the 1981-2010 baseline. The Pacific is slowly starting to built up steam / heat. www.karstenhaustein.com/climate
Germany has warmed 2.5°C since the late 19th century. #ClimateCrisis www.dwd.de/DE/presse/pr...
So i guess it was the weather that separated the US and Canada back then 😜 #randomweather Quite the persistent temperature anomaly pattern recently www.karstenhaustein.com/climate
Wyld and super rare zonal winter / spring division (in terms of temperature anomaly) - coincidentally following geographical borders (by and large). www.karstenhaustein.com/climate
And here is my take (amongst others): www.sueddeutsche.de/wissen/studi... (paywalled) hint ;) archive.ph
I am doing a short workshop on the 3rd, titled: "Science communication and academic activism in times of rising authoritarianism and Trumpism (from a climate perspective)" conference.idiv.de/event/4/cont... Registration for on site attendance until 15 February.
WACCy (Warm Arctic Cold Continent) is back and in full swing (interestingly enough without any support from the stratospheric polar vortex). Its has certainly been a while. Global January mean back to 2016 levels. Still anomalously warm mind you. www.karstenhaustein.com/reanalysis/g...
[...] We consider it more likely that the recent rate of global warming has been larger than anticipated, exceeding both the previous trend and what would be expected when considering only the observed pattern of greenhouse gas emissions. berkeleyearth.org/global-tempe...
… the same swirly delight some 6 hours and 5-10 cm of powdery snow in #Leipzig (Germany) later. Winter has finally arrived, yeah 🥰❄️☃️
It’s quite a rare sight and quite a beauty 🤩 Source: www.eumetnet.eu/observations...
... followed by the fully bias-adjusted DCENT dataset based on Chan et al 2024. Same outcome for 2025. www.nature.com/articles/s41... (2/2)
2025 is in the climate books. 3rd warmest after 2023 and 2024 or tied 2nd warmest after 2024 (preliminary). The trend continues to be up, even tho it is within the expected range of warming given the known external factors. Below the HadCRUT5 dataset ... www.metoffice.gov.uk/hadobs/hadcr... (1/2)
2nd or 3rd warmest November is in the books. Very warm anomalies almost all across the Northern Hemisphere. Negative Antarctic Oscillation with lots of extra warmth across Antarctica. Now lets see what December has in store. www.cpc.ncep.noaa.gov/products/pre... www.karstenhaustein.com/climate
Early fall all across Europe, Russia and Mongolia. Super-early variant of Warm Arctic Cold Continent pattern (WACCy). Late heat in parts of North America. www.karstenhaustein.com/climate
Fabulous human-centred transformation of a shitty car sewer into a green, walkable and mobility friendly urban space. 😍😍 That’s how you design a future-proof City. #Hamburg #Mobility4all
ExtremWetterKongress und KlimaManagementTagung in Hamburg. Many ideas. Many perspectives. Controversy and agreement on a range of topics such as this: Climate communication needs to be readjusted. #ClimateCrisis #ClimateJustice