New paper alert ‼️ Changes in atmospheric circulation patterns are - to a large part - responsible for the observed summer drought trend in Europe since 1980. The exact cause for these shifts remains uncertain. www.nature.com/articles/s41... Uni press release: www.uni-leipzig.de/en/newsdetai...

Drought has increased in Europe since 1980s: climate change or natural climate variability? 🌍🌡️🌬️ István Dunkl shows that hifts in large-scale atmospheric circulation explain ca. 55% of the soil moisture decline and amplify drying induced by thermodynamic changes 👇 w/ @sebastian-sippel.bsky.social

Nature Geoscience@natgeosci.nature.com · 2w ago

⚒️ Article: Shifting atmospheric circulation patterns over Europe since the 1980s have been the major cause of increasingly severe droughts @sebastian-sippel.bsky.social @anabastos.bsky.social @meteoleipzig.bsky.social www.nature.com/articles/s41...

⚒️ Article: Shifting atmospheric circulation patterns over Europe since the 1980s have been the major cause of increasingly severe droughts @sebastian-sippel.bsky.social @anabastos.bsky.social @meteoleipzig.bsky.social www.nature.com/articles/s41...

European summer drying largely driven by atmospheric circulation changes since the 1980s - Nature Geoscience

Shifting atmospheric circulation patterns over Europe since the 1980s have been the major cause of increasingly severe droughts on the continent, according to nudged circulation climate model simulati...

nature.com

Europe's worst heatwave so far, in terms of heat stress measures and temperatures - brought to you by fossil fuels. New @wwattribution.bsky.social study showing how such deadly heat became possible in only a few decades. www.worldweatherattribution.org/fossil-fuel-...

Uncertain dynamic response of mid-latitude winter precipitation New @nature.com paper led by Lei Gu with Dominik Schumacher, @sebastian-sippel.bsky.social, Istvan Dunkl, @robinnoyelle.bsky.social, Jitendra Singh, Lorenzo Pierini, @retoknutti.bsky.social and @erichfischer.bsky.social @ethz.ch

Nature@nature.com · 3mo ago

Nature research paper: Uncertain dynamic response of mid-latitude winter precipitation go.nature.com/3OKgajz

Very happy to finally share a paper that has been in my mind for a long time 🌍 🔗 www.pnas.org/doi/10.1073/...

Accelerated north–east shift of the global green wave trajectory | PNAS

Viewed from space, a “green wave” seasonally traverses Earth’s surface, from the north in boreal summer to the south in austral summer. This wave r...

pnas.org

The wave of green that sweeps Earth from the north in boreal summer to the south in austral summer is shifting due to climate change. Researchers found the centroid of the wave moving northward since 1982 and eastward since 2010. In PNAS: https://ow.ly/PjPU50YmYKz

How long does it take for the anthropogenic effects on the land C sink to be detected, given the large year to year variability? And can we shorten the time of emergence in observations by removing the circulation-induced components? Find more in Na Li’s study bg.copernicus.org/articles/23/...

Quantifying the time of emergence of the anthropogenic signal in the global land carbon sink

Abstract. The global land carbon sink has increased since the pre-industrial period, driven by the increasing atmospheric CO2 concentration and physical processes influenced by climate change. However...

bg.copernicus.org

Summer temperatures have strongly been influenced by circulation changes in the northern mid-latitudes. In our new study we evaluate and compare 4 statistical and ML methods that decompose trends into a "thermodynamical" and a "circulation induced" part. wcd.copernicus.org/articles/7/8...

Considerable yet contrasting regional imprint of circulation change on summer temperature trends across the Northern hemisphere mid-latitudes

Abstract. Rising summer temperatures and more frequent heat extremes are well-documented outcomes of anthropogenic climate change. However, the extent to which atmospheric circulation changes contribu...

wcd.copernicus.org

🥵 📜 New paper on the emergence of trends in humid heat intensity and duration in recent decades over South Asia led by Dr. Jitendra Singh with @sebastian-sippel.bsky.social @erichfischer.bsky.social doi.org/10.1088/2752... via @ioppublishing.bsky.social

Emergence of strong trends in humid heat intensity and duration in recent decades over South Asia

Emergence of strong trends in humid heat intensity and duration in recent decades over South Asia, Singh, Jitendra, Singh, Deepti, Sippel, Sebastian, Fischer, Erich

doi.org

This week, we had a great retreat with our PhDs, Postdocs & PIs in Leipzig @idiv-research.bsky.social Apart from sharing our progress, we hosted a session on extreme events with guest speakers @sebastian-sippel.bsky.social & @miguelmahecha.bsky.social Thanks for the insightful talks & discussion!

🚀 New season: AI for Good Webinar Series 𝗙𝗿𝗼𝗺 𝗠𝗼𝗹𝗲𝗰𝘂𝗹𝗲𝘀 𝘁𝗼 𝗠𝗼𝗱𝗲𝗹𝘀 - starting TODAY! @sebastian-sippel.bsky.social (Leipzig University) discusses how past climate events inform future climate risks. 📅 Oct 1st 🕓 17:00-18:00 CEST Sign-up: aiforgood.itu.int/event/unders...

Understanding past climate events and trends to constrain near-future climate risk

The global mean surface temperature record —combining sea surface and near-surface air data— is central to understanding climate variability and change.

aiforgood.itu.int

Es ist eine grosse Ehre, den 2025 Deutschen Umweltpreis zu erhalten! Danke an alle meine jetzigen und ehemaligen Gruppenmitglieder und viele Kolleg:innen! @lukasgudmundsson.bsky.social @yasserhaddad.bsky.social @yannquilcaille.bsky.social @michaelgwindisch.bsky.social @usyseth.bsky.social

DBU Deutsche Bundesstiftung Umwelt@umweltstiftung.bsky.social · 11mo ago

Ausgezeichnet!🏆Mit dem Deutschen Umweltpreis 2025 von der DBU #uwp25 werden die Klimaforscherin @soniaseneviratne.bsky.social @ethz.ch & das Geschäftsführungsduo Lars Baumgürtel und Dr. Ing. Birgitt Bendiek des Stahlverzinkungsunternehmens ZINQ geehrt. buff.ly/QEDIjX0

Hosted by @meteoleipzig.bsky.social @unileipzig.bsky.social @tropos-de.bsky.social , ECO-N research training group funded by @dfg.de Great lectures by @sebastian-sippel.bsky.social @frediotto.bsky.social @mdebrito.bsky.social @zscheischlerjak.bsky.social and more!

The current Advanced Training Module on "Climate Attribution", joinly by our interdisciplinary research training group "Economics of Connected Natural Commons" and the Leipzig Graduate school on Clouds, aerosols and radiation sparked large interest: 65 PhD researchers from 7 countries!

NEW – Guest post: How climate change is fuelling record-breaking extreme weather | @erichfischer.bsky.social‬ Read here: buff.ly/bnrSvQN

High warming rate fuels record-breaking weather The longer our measurements, the fewer record-breaking events we should observe. The opposite is the case - many more records and higher record margins I summarise the key takeaways of our ‪@natrevearthenviron.nature.com article in a guest post.

Carbon Brief@carbonbrief.org · last yr.

NEW – Guest post: How climate change is fuelling record-breaking extreme weather | @erichfischer.bsky.social‬ Read here: buff.ly/bnrSvQN

Find the original @natrevearthenviron.nature.com article with important contributions from co-authors Margot Bador, Raphaël Huser, Lizzie Kendon, Alexander Robinson, and @sebastian-sippel.bsky.social rdcu.be/eqPrN

Record-breaking extremes in a warming climate

Nature Reviews Earth & Environment - Multiple record-breaking climate events have been observed, posing socioeconomic risks. This Review outlines observed and projected changes in...

rdcu.be

🚨New Review! 'Record-breaking extremes in a warming climate' By ‪@erichfischer.bsky.social, @sebastian-sippel.bsky.social et al. www.nature.com/articles/s43...

⚒️ Article: Flash droughts that are accompanied by extreme heat drive more severe and prolonged impacts on global ecosystems @erichfischer.bsky.social @ethz.ch @louiseslater.bsky.social @sebastian-sippel.bsky.social @retoknutti.bsky.social www.nature.com/articles/s41...

How long does it take until we detect forced signals in global and regional land carbon fluxes? And can we use dynamical adjustment to reduce the noise and shorten the detection time? Check out LiNa's paper 👇 egusphere.copernicus.org/preprints/20... Co-advised by @sebastian-sippel.bsky.social

Constraining the time of emergence of anthropogenic signal in the global land carbon sink

Abstract. The global land carbon sink has increased since the preindustrial period, driven by increasing atmospheric CO2 concentration and climate change. However, detecting these anthropogenic signal...

egusphere.copernicus.org

New paper by Sebastian Sippel and colleagues provides evidence that the SST component of most current global temperature datasets is too cold during (roughly) 1900-1930. doi.org/10.1038/s415...

Early-twentieth-century cold bias in ocean surface temperature observations - Nature

Independent statistical reconstructions of the global mean surface temperature from either ocean or land data show that existing estimates of early-twentieth-century ocean surface temperatures are too...

doi.org

A new paper led by Sebastian Sippel just appeared in Nature arguing that ocean temperature measurements in the early 20th century have a cold bias. It's a fun story illustrating the process of scientific discovery, so let me talk about it a bit. 🧵 www.nature.com/articles/s41...

Early-twentieth-century cold bias in ocean surface temperature observations - Nature

Independent statistical reconstructions of the global mean surface temperature from either ocean or land data show that existing estimates of early-twentieth-century ocean surface temperatures are too...

nature.com

Redrawing the global warming stripes. In a new paper led by Sebastian Sippel published in Nature today, we show that the early 20th century global ocean surface temperatures and thereby global mean surface temperature were warmer than previously thought. Thread... (1/13)

Breaking News! Seminal paper by our own Sebastian Sippel & colleagues published in Nature @natureportfolio.bsky.social today! They provide evidence that the Sea Surface Temperatures in most current global temperature datasets are considerably too cold (1900-1930): www.nature.com/articles/s41...

Early-twentieth-century cold bias in ocean surface temperature observations - Nature

Independent statistical reconstructions of the global mean surface temperature from either ocean or land data show that existing estimates of early-twentieth-century ocean surface temperatures are too...

nature.com