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Leipzig Institute for Meteorology

@meteoleipzig.bsky.social
1.2K followers 1.8K following 112 posts

All things blue sky from Leipzig University's experts on weather, climate & society 🌍 🏳️‍🌈🏳️‍⚧️🌪⛈🌤☀️ #ClimateAttribution #PolarClimateChange #Clouds&Climate #ClimComms www.physes.uni-leipzig.de/institut-…

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Jan Rosenow @janrosenow.bsky.social · 05/10/2026
The Iran war is speeding up the shift away from fossil fuels. That's one reason I'm hopeful about electrification. I told @news.abc.net.au why, in a piece alongside Fatih Birol @iea.org and António Guterres. 🧵 www.abc.net.au/news/2026-10...
abc.net.au
Unintended consequences of war in Iran are helping the climate
The Iran war is turbocharging global electrification. But experts say the global grid needs to roughly double in size, as infrastructure bottlenecks prevent a clean energy revolution.
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Prof Sam Illingworth @samillingworth.com · 03/10/2026
🌾 Climate change will spike food prices Modelling shows a 2°C warmer world makes it far more likely that major farming regions fail at the same time, pushing world crop prices into sudden spikes. 🔗 doi.org/10.1088/1748-9326/aeae54 #Climate #Food #Science 🧪
doi.org
Multi-breadbasket failures, climate change, and risks for crop prices and regional consumption
Multi-breadbasket failures, climate change, and risks for crop prices and regional consumption, Kuhla, Kilian, Goldrina, Maria, Puma, Michael Joseph, Kinkel, Yann, Otto, Christian
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Zeke Hausfather @zekehausfather.com · 03/10/2026
I often see people claim that because clean energy sources like solar, wind, or nuclear are manufactured using fossil fuels their emissions are high. But thats absolutely not the case: even accounting for full lifecycle emissions they are vastly better than burning coal or gas:
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Sam Burgess @oceanterra.org · 02/10/2026
Europe didnt just experience an exceptionally hot summer in 2026. It experienced a summer where multiple climate extremes reinforced each other. First - temperature records were broken at daily, monthly and seasonal scales across Europe Read more: climate.copernicus.eu/summer-revie...
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Jos Olivier @josolivier.bsky.social · 02/10/2026
May heatwaves, deaths, ruined harvests: study of Europe’s summer paints grim picture for the future. EU Copernicus report shows surface air temperatures from June to August were 2.5C above decadal average. www.theguardian.com/environment/...
theguardian.com
May heatwaves, deaths, ruined harvests: study of Europe’s summer paints grim picture for the future
EU Copernicus report shows surface air temperatures from June to August were 2.5C above decadal average
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Zack Labe @zacklabe.com · 02/10/2026
This is pretty wild... the average global sea surface temperature (outside of the polar regions) is still above 70°F (21.1°C) through the end of September. This is significantly above the prior record. We'll cover this in our October climate briefing: climatecentral-org.zoom.us/webinar/regi... 🌊
Line graph time series of daily global mean sea surface temperatures from 1982 to 2026. This year is currently at record high for this time of year. Data is from NOAA OISSTv2.1, and the graphic is created by Climate Central at https://www.climatecentral.org/climate-briefings.
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Science Magazine @science.org · 01/10/2026
Here's a reminder on #InternationalCoffeeDay: It's OK to take a (coffee) break. ☕ "It’s ... helpful to have a venue to share the day-to-day ups and downs of life as a grad student." scim.ag/4xMyqZO
People arm in arm while drinking coffee and holding papers, with the headline: Why scientists should take more coffee breaks
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Melaine Le Roy @subfossilguy.bsky.social · 01/10/2026
Perito Moreno (Patagonia, ARG) The front of this iconic glacier is now 910 m away from Península Magallanes, thus exceeding the ~750 m measured by German geologist Rudolf Hauthal in 1899! 🧊🔥 Area loss since 2018 amounts to 3.67 km²! 📈 Source: Glaciarium El Calafate
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Melaine Le Roy @subfossilguy.bsky.social · 01/10/2026
Devastating! 😱 The figures have just been published by glamos.ch Swiss glacier have lost 5.5% of their volume this year! (2nd worst year just after 2022)! Since 2022, 20% of total ice volume has gone! 📈 20%...in just FIVE years! 🧊🔥 Full report: doi.glamos.ch/pubs/annualr...
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Prof Friederike Otto @frediotto.bsky.social · 01/10/2026
After a year of many experiencing the brutal reality of climate change, not least in Nepal, COP31 will happen & could provide an opportunity to bring the urgent need to massively accelerate global action on climate change back in focus- maybe - we'll talk about it: www.imperial.ac.uk/events/21370...
the poster announcing the event, same text as in link
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Prof Ian Hall @ianhall.bsky.social · 01/10/2026
🌊 The concerning thing isn’t just that global SST is at a record-breaking +0.75°C above the 1991–2020 baseline. It’s the trajectory 🤯
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Robert Rohde @rarohde.bsky.social · 30/09/2026
Temperatures in the Central Pacific El Niño region are the hottest ever measured (top panel), and far above any other El Niño at this time of year. But, if you adjust for the warming of the global ocean, the current trajectory is not so different from other very strong events.
Two panel plot showing daily time series of temperature anomalies in the Central Pacific Nino3.4 region during the last four strongest El Niño events without and with correction for changes in global ocean mean temperature.
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Copernicus ECMWF @copernicusecmwf.bsky.social · 30/09/2026
🌫️ Air pollution knows no borders. In 2026 so far, 40% of global population was exposed to harmful ozone pollution, & wildfire smoke & desert dust affected regional and hemispheric air quality. 🔗 Explore the full story in CAMS #AtmosphereWatch: atmosphere.copernicus.eu/air-quality/... @ecmwf.int
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European Environment Agency @eea.europa.eu · 30/09/2026
Half of Europe's population was exposed to poor or worse ground-level ozone levels so far in 2026, as successive summer heatwaves drove up concentrations, according to new @CopernicusECMWF analysis. 🔗 atmosphere.copernicus.eu/air-quality/... #AirQuality #Ozone
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Melaine Le Roy @subfossilguy.bsky.social · 29/09/2026
Glacier Carré (La Meije) 2008 | 2018 | 2026 The iconic ice patch punctuating La Meije (3983 m) south face and its normal route (3600-3780 m) could not resist the insane 2026 summer! 😪 Our cryospheric heritage is literally being destroyed before our very eyes! 🧊🔥 📷 PNE and Félix de Montety
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Shel Winkley @shelwinkleywx.bsky.social · 29/09/2026
What'cha doing around 1pm EDT? Join @climatecentral.org & @coveringclimatenow.org as we chat through the latest on this big ol' El Niño • What is El Niño doing? • More importantly, what are the impacts of climate change & NOT just El Niño • How can you tell these stories through winter?
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Zeke Hausfather @zekehausfather.com · 28/09/2026
This year's record setting El Niño will impact many different parts of the world, with some experiencing severe drought and others flooding. In a new analysis at The Climate Brink, I explore what impacts happened during past events and which are most likely to occur this year
theclimatebrink.com
The impacts of this year’s record-shattering El Niño
El Niño will drive severe drought from Indonesia to the Southern Africa and northern South America, with wetter winters from the US Gulf Coast to Southern South America.
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tropos-de.bsky.social @tropos-de.bsky.social · 24/09/2026
#C3SAR measurement campaign in #Brandenburg successfully completed. Extensive measurements carried out by the #DFG research group: www.tropos.de/aktuelles/sc... / @dwdderwetterdienst.bsky.social @leibniz-gemeinschaft.de @unileipzig.bsky.social @unihannover.bsky.social @dlr-en.bsky.social @dfg.de
Auf dem Messfeld in Falkenberg wurde sowohl der Oceanet-Container mit einem dual-FOV-Ramanlidar vom TROPOS als auch eine Cloudnet-Station, inkl. Wolkenradar, von der Uni Leipzig aufgebaut. Foto: Ben Skodda, DWD
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Copernicus ECMWF @copernicusecmwf.bsky.social · 23/09/2026
📢 Now available: 5 new Jupyter notebooks for the #C3S Climate Atlas. Computation of Potential EvapoTranspiration (PET) and Standardised Precipitation-Evapotranspiration Index (SPEI), demonstration of the Paris urban heat‑island analysis ⬇️
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World Meteorological Organization @wmo-global.bsky.social · 25/09/2026
2025 was the 4th consecutive year of widespread glacier loss across all regions. Each bar shows the global glacier mass change in one hydrological year, from 1976 onwards. 🔵 = ice gain; 🔴 = ice loss. 📖 Read more: bit.ly/WMOStateofWater2025Report #StateofWater
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World Meteorological Organization @wmo-global.bsky.social · 27/09/2026
The Antarctic ozone hole in 2025 was one of the smallest in decades. 🌎 Yet UV exposure remains a concern: since the mid-1990s, it has increased by up to 20% in parts of Europe. ☀️ Effective UV protection remains essential. Learn more: bit.ly/WMOOzoneUVBulletin2026pr
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David Ho @davidho.bsky.social · 23/09/2026
Wtaf is this question my university just asked me about my project?
Does the project involve any work that could be interpreted as promoting DEIA, climate change research, or non-compliant to any Presidential Executive Orders?
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Zeke Hausfather @zekehausfather.com · 22/09/2026
I have a new piece out in Nature today on the record-breaking 2026/2027 El Niño, what impacts we should expect, and how governments can prepare. The Niño3.4 region is currently running more than 1C hotter than any prior event on record, and we remain months away from the peak www.nature.com/artic...
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Johannes Quaas @jquaas.bsky.social · 23/09/2026
An enlightening keynote by @lewan.uk at the @cbc-conference.bsky.social on how climate denialism works - driven by ideology - and how to move forward to overcome it, where attribution science has a role to play.
Stephan Lewandowsky on the panel at the Conference in Connections between Climate, Biodiversity, and Human Behaviour
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Johannes Quaas @jquaas.bsky.social · 23/09/2026
Now panel discussion at the @cbc-conference.bsky.social conference on Connections between Biodiversity, Climate and Human Behaviour. Stephan Lewandowsky @lewan.uk cautions against the term polycrisis: "people have an upper limit on what they can worry about" ... "make it specific instead"
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Copernicus ECMWF @copernicusecmwf.bsky.social · 18/09/2026
The current size of the Antarctic ozone hole is close to the record observed in 2015. Our forecasts suggest that it may set a new record in the coming days. The good news is that, despite its large size, the 2026 ozone hole is much shallower than the one eleven years ago. More ⬇️ @ecmwf.int
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World Meteorological Organization @wmo-global.bsky.social · 18/09/2026
2025 was one of the driest years for rivers globally in 35 years. Over 36% of global basin areas experienced below-normal flows. Our declining freshwater storage poses serious risks. Explore the findings of the WMO global #StateOfWater report 2025: bit.ly/WMOStateOfWater2025pr
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Zeke Hausfather @zekehausfather.com · 21/09/2026
This year's El Niño event is moving into record territory, with the daily Oceanic Niño Index (ONI) tying the record previously set during the 2015/2016 super-El Niño. My latest over at Carbon Brief: www.carbonbrief.org/...
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World Weather Attribution @wwattribution.bsky.social · 17/09/2026
NEW: Climate change is influencing many of the likely drivers behind the devastating rock and ice collapse on the northern Nepalese border last month. 🧵👇(1/6)
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Valérie Masson-Delmotte @valmasdel.bsky.social · 17/09/2026
European drought strenghtened by human-caused climate change www.climameter.org/20260831-eur...
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Prof Friederike Otto @frediotto.bsky.social · 17/09/2026
What are known causal factors behind rock-ice avalanche near Nepal–Tibet border? @wwattribution.bsky.social Vulnerable slope, potentially weakened by 2015 earthquake, definitely destabilised by climate change through glacier retreat & permafrost thaw. www.worldweatherattribution.org/rapid-warmin...
Height of the 0C isotherme in recent years around the rock-failure
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Scientists for Future Leipzig @s4f-leipzig.bsky.social · 17/09/2026
Die 3 ersten Folgen waren Interviews mit unserem Kollegen, dem Meteorologen Dr. @khaustein.bsky.social, einem Obstbauern und einem Feuerwehrmann; www.l-iz.de/tag/klimatv
Quelle: https://www.l-iz.de/politik/brennpunkt/2026/09/lz-klima-tv-folge-1-mit-meteorologe-dr-karsten-haustein-was-passiert-wenn-die-klimakrise-nicht-mehr-abstrakt-ist-sondern-unseren-alltag-erreicht-669756
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Zeke Hausfather @zekehausfather.com · 10/09/2026
Not only was August 2026 the warmest August on record globally, but this summer as a whole (June, July, August) was also tied with 2024 as the warmest on record in the Copernicus/ECMWF ERA5 dataset:
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Alaa Al Khourdajie @dralaaclimate.bsky.social · 11/09/2026
ScenarioMIP marker scenarios for CMIP7 are now public. Seven IAM pathways from ~1.4°C to ~3.4°C at 2100 [panel a] that will shape IPCC AR7 assessment 1/6
.
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Leipzig Institute for Meteorology @meteoleipzig.bsky.social · 10/09/2026
Developing a data-driven method that jointly learns low-dimensional climate variability and their causal links, it can be shown that early warnings in response to ENSO or IOD forecasts are achievable. @uniofreading.bsky.social @profmarlenewind.bsky.social journals.ametsoc.org/view/journal...
journals.ametsoc.org
Disentangling Regional Impacts of Joint Teleconnections Using Causal Representation Learning
Abstract Understanding teleconnections of large-scale modes of climate variability is relevant for seasonal predictability and supports a dynamical understanding of climatic changes. While numerical m...
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Leipzig Institute for Meteorology @meteoleipzig.bsky.social · 10/09/2026
How does rain and storm dynamics in the tropical Atlantic interact with the ocean? Near-inertial responses to atmospheric disturbances enhanced mixing near the base of the ocean mixed layer, impacting SST and redistributing salt and nutrients. journals.ametsoc.org/view/journal... @maxplanck.de
Summary of activities during the cruise (BOWTIE campaign). Top panel: Blue colours mean precipitation in the background, with a black line for the ship track and pink lines and triangles for other instruments (eg satellite tracks). Bottom panel: Blue dots with dashed line, eg for radiosonde launch locations.
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Leipzig Institute for Meteorology @meteoleipzig.bsky.social · 10/09/2026
We can actually measure the frequency of insect concentration in the air by radar. Fascinating stuff, now published by an interdisciplinary team at our institute and beyond: ieeexplore.ieee.org/document/115... @jquaas.bsky.social @idiv-research.bsky.social @vogelwarte.bsky.social
Histograms of maximum daily insect concentration at 150, 250, 500, and 750 m above ground derived from the three radars.

Four panels with blue bars primarily on the left of the x axis. Green and reddish bars to the left with the latter spreading also to the right of the x acxis. 150m above ground at top and 750m above ground at the bottom.
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Zack Labe @zacklabe.com · 10/09/2026
🚨 Last month was easily the hottest August on record globally. In fact, it was over 0.1°C warmer than the prior record (2023/2024)! This was estimated to be about 1.65°C warmer than a pre-industrial (1850-1900) average Summary by @copernicusecmwf.bsky.social at climate.copernicus.eu/surface-air-...
Orthographic map showing 2-m air temperature anomalies in August 2026 relative to a 1981-2010 baseline. This visualization shows North and South America. Most all areas are warmer than average.Orthographic map showing 2-m air temperature anomalies in August 2026 relative to a 1981-2010 baseline using ERA5 data. This visualization shows Africa, Europe, and western Asia. Most areas are warmer than average.Orthographic map showing 2-m air temperature anomalies in August 2026 relative to a 1981-2010 baseline using ERA5 data. This visualization shows Australia, Antarctica, and Asia. Most areas are warmer than average, except for parts the Antarctic.
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Ruben Prütz @rubenpruetz.bsky.social · 10/09/2026
In a new Comment, published this week in #Nature Reviews Clean Technology and co-led with Quirina Rodriguez Mendez, we discuss ten prominent #narratives about the role of carbon dioxide removal (CDR) in the current academic #discourse. 📚💭 doi.org/10.1038/s443...
doi.org
Mapping conflicts in carbon removal narratives - Nature Reviews Clean Technology
Carbon dioxide removal has been described both as a mitigation necessity and as a risk to mitigation ambition or sustainability in the academic literature. This Comment examines the assumptions underl...
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Copernicus ECMWF @copernicusecmwf.bsky.social · 10/09/2026
🌡 August #C3S Climate Bulletin reports that August was the joint-warmest month on record & 1.65°C above the estimated pre-industrial level. Western Europe saw its warmest summer on record, while the average sea surface temperature across the extra-polar ocean was also the joint highest on record. ⬇️
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Copernicus ECMWF @copernicusecmwf.bsky.social · 10/09/2026
❄ In August, Arctic sea ice extent was 9.2% below 1991–2020 average, ranking 12th lowest for August in the 48-year satellite record. Antarctic sea ice extent was 6.5% below average, the fourth-lowest August extent. The four lowest August extents have all occurred since 2023. ⬇️
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Deutscher Wetterdienst (DWD) @dwdderwetterdienst.bsky.social · 10/09/2026
Der August 2026 zeigte sich deutschlandweit wärmer, trockener und sonnenscheinreicher als die Referenzperiode 1991-2020. Die Augustausgabe des Monatlichen Klimastatus Deutschland, diesmal zusätzlich mit kurzem Rückblick auf den Sommer 2026, ist online! www.dwd.de/DE/leistunge...
Tabelle mit 8 Stationspaaren mit Monatswerten zu Temperatur, Sommertagen, heißen Tagen und Tropennächten. Ein Stationspaar besteht aus einer Umlandstation und einer Stadtklimastation.
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Scientists for Future Leipzig @s4f-leipzig.bsky.social · 08/09/2026
Unser Kollege der #ScientistsForFuture #Leipzig, Karsten Haustein @khaustein.bsky.social im Interview von @leipzigerzeitung.bsky.social #Klima​-TV "Was passiert, wenn die #Klimakrise nicht mehr abstrakt ist, sondern unseren Alltag erreicht?" www.l-iz.de/politik/bren...
l-iz.de
LZ-Klima-TV, Folge 1 mit Meteorologe Dr. Karsten Haustein: Was passiert, wenn die Klimakrise nicht mehr abstrakt ist, sondern unseren Alltag erreicht? · Leipziger Zeitung
In unserer LZ-Klimareihe fragen wir: Wer muss schon heute mit den Folgen der Klimakrise umgehen? Wie verändert sie Arbeit und Alltag – und wen haben wir
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Copernicus ECMWF @copernicusecmwf.bsky.social · 08/09/2026
Africa Clean Air Network, State of Global Air & #CopernicusAtmosphere have released the Africa Air Quality Brief 2026. Combining data & expertise, it examines fine particulate matter across the continent. 🔗 Discover more: atmosphere.copernicus.eu/air-quality-... @ecmwf.int @heisoga.bsky.social
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World Meteorological Organization @wmo-global.bsky.social · 08/09/2026
El Niño will deliver a major blow to communities, economies & supply chains worldwide. Its local impacts may differ. National Meteorological & Hydrological Services are the authoritative source of official warnings & locally relevant climate info. 🔗 bit.ly/4zUk77Y
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Kachelmannwetter @kachelmannwetter.com · 08/09/2026
Die Anzahl der heißen Tage seit Ende Mai im Südwesten ist einfach jenseits aller bisherigen Aufzeichnungen. 1947 war lange der große Jahrhundertsommer. War. Hitzetage Mannheim 52 Tage 2026 42 Tage 2003 42 Tage 2018 34 Tage 1947 34 Tage 2015 34 Tage 2019 /FR
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Prof Ian Hall @ianhall.bsky.social · 05/09/2026
Interesting Q&A on how heat, drought, wildfires, and climate extremes stress forests, possibly weakening their ability to absorb and store carbon. For me, the takeaway is: forests aren’t an unlimited climate solution. We need to protect their resilience, too. www.nature.com/articles/s41...
nature.com
Forests under climate stress - Nature Geoscience
Nature Geoscience spoke with Ana Bastos (Leipzig University, Germany) and Sonia I. Seneviratne (ETH Zürich, Switzerland) about how climate change is reshaping forest ecosystems, how forests and land-u...
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KarSteN Haustein @khaustein.bsky.social · 05/09/2026
Equal Earth projection to the win! 🥳 Great move! Note to my fellow science nerds: Pls try to adopt this projection wherever and whenever you can. Especially when it comes to scicomm and outreach 🙏🏼
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Zeke Hausfather @zekehausfather.com · 05/09/2026
The August Niño3.4 numbers (ONI) came in at ~2.6C, a tad lower than most models predicted as temperatures largely stalled. This will likely change next week with some strong westerly wind bursts, but the trajectory may lead to a slight downward revision in September model runs.
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Prof Ian Hall @ianhall.bsky.social · 03/09/2026
🌳 Plant trees where people live. It sounds obvious… but how many new-build housing estates have you seen with hardly a tree in sight? As heatwaves intensify, where we plant trees matters. theconversation.com/more-trees-a...
theconversation.com
More trees are needed to cool down European cities in heatwaves – but they must be planted nearer to homes
Some European cities have poor tree shade cover and this is ramping up heat for their citizens.
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