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Bjoern Soergel

@bjoernsoergel.bsky.social
308 followers 157 following 16 posts

Researching climate change, global inequality and sustainable development at Potsdam Institute for Climate Impact Research (PIK). Former cosmologist. Opinions my own.

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Reposted by Bjoern Soergel
Jarmo Kikstra @kikstra.bsky.social · 14/05/2025
🌍 New publication – and the final paper of my PhD! Can we end poverty, provide decent living standards (and beyond) for all, and meet climate targets? 📄 Paper (open access): “Closing decent living gaps in energy and emissions scenarios: introducing DESIRE”: iopscience.iop.org/article/10.1...
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Bjoern Soergel @bjoernsoergel.bsky.social · 25/11/2024
In a 2021 study we showed that already one third of the carbon price revenues of a 1.5°C path are sufficient to fund 350 billion $ per year of climate finance by 2030, and over 900 billion $ per year by 2050. www.nature.com/articles/s41...
nature.com
A sustainable development pathway for climate action within the UN 2030 Agenda - Nature Climate Change
Current action is insufficient to meet both the Paris Agreement and the Sustainable Development Goals. Integrated model-based analysis shows that strong interventions across many dimensions, together ...
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Bjoern Soergel @bjoernsoergel.bsky.social · 25/11/2024
@pik-potsdam.bsky.social director Ottmar Edenhofer on climate finance: "Taxing international aviation and coal, oil and gas would be a way of lowering emissions *and* raising money to fund international climate finance" (summary/translation mine).
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Aurélie Méjean @aureliemejean.bsky.social · 22/11/2024
See also our guest post on @carbonbrief.org : t.co/5aAitpB7Le 10/10
t.co
https://www.carbonbrief.org/guest-post-how-climate-change-could-reverse-gains-in-global-inequality/
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Ed Hawkins @edhawkins.org · 13/11/2024
Using up the carbon budget for 1.5°C
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Niklas Höhne @niklashoehne.bsky.social · 12/11/2024
So, konzentrieren wir uns jetzt mal bewusst auf das Positive: - Boom bei erneuerbaren Energien, Batterien und Elektroautos - Fortschritte bei CO2 freiem Stahl und Schiffen - Mehr Jobs in Umweltbranche als in Kohle Klimapolitik bringt uns voran! Interview www.tagesschau.de/klimawandel-...
tagesschau.de
Wenn wir das hinbekommen, ist die Welt hinterher eine bessere
Trotz Klimakrise gibt es Entwicklungen, die Mut machen, sagt Klimapolitik-Fachmann Niklas Höhne. Noch reichten die Erfolge bei Weitem nicht aus. Doch wenn die Transformation gelinge, "dann ist die Wel...
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Bjoern Soergel @bjoernsoergel.bsky.social · 04/11/2024
Bloomberg article about our new study: www.bloomberg.com/news/article...
bloomberg.com
Lifestyle Changes Offer Direct Path to Emissions Cuts, Study Finds
New findings show that eating less meat and cutting food waste help get the world move closer to its emissions goals.
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Reposted by Bjoern Soergel
Daniel Huppmann @danielhuppmann.bsky.social · 31/10/2024
How can we reach the Sustainable Development Goals (#SDGs) and fulfill our #climate ambition? This is explored by a multi-model study led by @bjoernsoergel.bsky.social in the #SHAPE project. And I'm excited that all scenario data is available under CC-BY via a brand-new #IIASA #ScenarioExplorer...
shape.apps.ece.iiasa.ac.at
SHAPE Scenario Explorer
This Data Explorer presents key scenarios from the SHAPE studies.
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
Heute morgen im Interview mit Britta Fecke bei Deutschlandfunk Umwelt & Verbraucher: Hier zum Nachhören: www.deutschlandfunk.de/klimaziele-p... Und nochmal der Link zur Studie: iopscience.iop.org/article/10.1...
deutschlandfunk.de
Klimaziele PIK, Plastik-Abkommen, Kohlekraft Ausbau, Bitterfeld Chemie, Akkus
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
10) The study was a shared effort led by @pik-potsdam.bsky.social with PBL & Utrecht University (NL), IIASA, NTNU (Norway), SRC (Sweden) and IDOS and RIFS (Germany). All scenario data can be explored and downloaded in a new web tool: shape.apps.ece.iiasa.ac.at @danielhuppmann.bsky.social
shape.apps.ece.iiasa.ac.at
SHAPE Scenario Explorer
This Data Explorer presents key scenarios from the SHAPE studies.
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
9) On the other hand, the green innovation (EI) scenario needs little change in lifestyle, but relies heavily on efficiency increases. However, it also relies on potentially problematic technologies like bioenergy and CCS.
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
8) But it relies on substantial changes in energy and food consumption patterns, especially in high-income countries. These might be challenging to adopt.
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
7) The post-growth/lifestyle change scenario (RC) has the lowest warming and the largest improvements in biodiversity. It also has the least reliance on technologies unproven to work at scale, like carbon capture and storage (CCS).
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
6) They also avoid some of the unintended side effects of simplistic climate protection strategies, such as higher food prices. And they stop further loss of biodiversity.
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
5) We show that all three sustainable development scenarios fare much better than “business as usual”. They all limit warming to 1.5°C (with small and temporary overshoot), and make much larger progress towards the SDGs.
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
4) We used four large-scale computer models to quantify these scenarios. Two of them are integrated assessment models of the energy-economy-land-climate system, and two focus on the global buildings and materials sectors.
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
3) In this paper we take a systematic look at three different strategies: - Green growth and tech-innovation (EI) - Post-growth and lifestyle change (RC) - Government-led transformation with mix of both (MC)
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
2) However, there are very different perspectives on how to best pursue these goals. Will green technologies save us? Or do we need to radically reduce our consumption?
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
1) We have the Paris Agreement on climate change and the UN Sustainable Development Goals (SDGs), both of which were agreed by all countries worldwide in 2015. Taken together, they are an agenda for securing human well-being on an intact planet.
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
Our new study “Multiple pathways towards sustainable development goals and climate targets” - A summary thread Read it in full here (open-access): iopscience.iop.org/article/10.1...
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Bjoern Soergel @bjoernsoergel.bsky.social · 30/10/2024
New study out: Multiple pathways towards sustainable development goals and climate targets Available open-access: iopscience.iop.org/article/10.1... We compare different pathways to meet the 1.5°C #climate target and the UN #SDGs. Details to follow. @pik-potsdam.bsky.social
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Zukunft KlimaSozial - Institut für Klimasozialpolitik @klimasozial.bsky.social · 23/07/2024
Haushalte mit niedrigen Einkommen brauchen mehr finanzielle Hilfen für #Klima-Maßnahmen, sagt Ines Verspohl von @klimasozial.bsky.social im @taz.de -Interview: taz.de/Soziale-Folg...
taz.de
Soziale Folgen der Klimapolitik: „Wir planen für alle“
Haushalte mit niedrigen Einkommen bräuchten mehr finanzielle Hilfen für Klima-Maßnahmen, sagt Ines Verspohl vom neuen Institut für Klimasozialpolitik.
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PIK_climate @pik-potsdam.bsky.social · 15/07/2024
🆕Neuer Klimabeirat #Brandenburg unter Vorsitz von PIK Forscher Hermann Lotze-Campen - herzlichen Glückwunsch👏🥳 Der Expertenbeirat soll künftig Umsetzung von #Klimaschutz-Maßnahmen begleiten. www.pik-potsdam.de/de/aktuelles...
pik-potsdam.de
Neuer Klimabeirat Brandenburg unter Vorsitz von Hermann Lotze-Campen
15.07.2024 - Hermann Lotze-Campen vom Potsdam-Institut für Klimafolgenforschung (PIK) ist in den Vorsitz des neuen Wissenschaftlichen Klimabeirats Brandenburg berufen worden. Das 12-köpfige Gremium wi...
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Daniel Huppmann @danielhuppmann.bsky.social · 23/02/2024
The Shared Socioeconomic Pathways (SSPs) are a key input to climate change mitigation & adaptation research - but what about urbanization, structural change & governance? Join the launch webinar of the SSP-Extensions Explorer! 🗓️29 Feb 2024 ⏰15pm CET iiasa.zoom.us/webinar/regi...
Screenshot of the beta-version of the "SSP-extensions Explorer" hosted by IIASA, to be launched on February 29, 2024
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Niklas Höhne @niklashoehne.bsky.social · 06/02/2024
EU Commission proposes new 2040 climate target today Climate impacts show urgency At least 95%+significant international climate finance would be appropriate as EU already overspent its fair CO2 budget. Missed opportunity to strengthen 2030 target as required by Paris www.reuters.com/world/europe...
reuters.com
reuters.com
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Daniel Huppmann @danielhuppmann.bsky.social · 30/01/2024
The Shared Socioeconomic Pathways (SSPs) have become an integral component of Integrated Assessment and Climate research - and now, it's time for an update of the underlying GDP & population projections. Visit data.ece.iiasa.ac.at/ssp for the SSP Release 3.0 (January 2024)...
Illustration of basic drivers in the updated SSP socioeconomic projections (release 3.0, January 2024), screen shot from https://data.ece.iiasa.ac.at/ssp/#/workspaces/200
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PIK_climate @pik-potsdam.bsky.social · 29/01/2024
Join the launch of the most ambitious study of food system economics today: ➡ Global Policy Report Launch by the Food System Economics Commission: foodsystemeconomics.org/events/globa... 📅 Date: Monday, 29 January 2024 🕒 Time: 15:00-17:00 CET 💻 Livestream: us06web.zoom.us/webinar/regi...
foodsystemeconomics.org
Global Policy Report Launch - Food System Economics Commission
The hidden costs of our current food systems cost more than 10 trillion USD each year. At this launch event, experts will share and discuss research findings, policy suggestions, and pathways forward,...
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PIK_climate @pik-potsdam.bsky.social · 19/01/2024
"Die EU wird das Ziel, bis 2030 55% weniger #CO2 auszustoßen, erreichen. Das Problem beginnt danach: Wir sehen, dass die geplanten Politiken der Mitgliedsstaaten nicht ausreichen. Da muss deutlich nachgebessert werden", so PIK Direktor Ottmar #Edenhofer. www.deutschlandfunk.de/wissenschaft...
deutschlandfunk.de
CO2-Reduktion: EU bis 2030 im Plan, später nicht mehr
Die Klimaschutzziele für 2030 kann die EU erreichen, sagt Ottmar Edenhofer vom europäischen wissenschaftlichen Beirat zum Klimawandel. Schwierig wird es danach.
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Falko Ueckerdt @falkoueckerdt.bsky.social · 11/01/2024
How will green and blue hydrogen compete with natural gas and with each other? New paper that combines ranges for direct cost developments and residual emissions. Importantly, CO2 & methane pricing or emission regulation will have an increasing impact authors.elsevier.com/c/1iMSj925JE... 1/9
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Falko Ueckerdt @falkoueckerdt.bsky.social · 09/01/2024
Job posting: Please apply or share. At @pik-potsdam.bsky.social we are looking for Postdocs and PhD candidates to model and explore circularity and industry transformation scenarios of energy-intensive industries (steel, cement, and plastics). www.pik-potsdam.de/de/aktuelles...
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Daniel Huppmann @danielhuppmann.bsky.social · 09/01/2024
Quantitative scenarios are an important component for understanding climate change, including risks, adaptation options and mitigation pathways... Lessons from IPCC AR6 and opportunities for AR7 👉 doi.org/10.1038/s441...
A simplified illustration of the scenario generation process in the IPCC, Fig 1, from Pirani et al. 2023
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Greg Nemet @gregnemet.net · 11/12/2023
Fatih Birol International Energy Agency: The fossil fuel industry “needs to commit to genuinely helping the world meet its energy needs and climate goals – which means letting go of the illusion that implausibly large amounts of carbon capture are the solution. thehill.com/policy/energ...
thehill.com
COP28 president draws fierce backlash with attack on climate science
At this year’s United Nations climate conference (COP28), the summit’s president Sultan Ahmed al-Jaber — who also leads the United Arab Emirates’s national oil company — sparked cont…
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Niklas Höhne @niklashoehne.bsky.social · 05/12/2023
Climate Action Tracker update today: Two years on from Glasgow and our warming estimates for government action have barely moved. Governments appear oblivious to extreme events of past year, somehow thinking treading water will deal with flood of impacts? climateactiontracker.org/publications...
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PIK_climate @pik-potsdam.bsky.social · 05/12/2023
Was heißt schon gerecht beim #Klimawandel? Die Folgen treffen manche Menschen mehr als andere. Junge mehr als Alte, Menschen in armen Ländern mehr als Menschen in reichen Ländern. PIK-Forscher Nico Bauer im Beitrag mit rbb24 Inforadio: www.inforadio.de/rubriken/wis...
inforadio.de
Was heißt schon gerecht beim Klimawandel?
Die Folgen der Klimakatastrophe treffen manche Menschen mehr als andere. Junge mehr als Alte, Menschen in armen Ländern mehr als Menschen in reichen Ländern. Wie gerechter Klimaschutz funktionieren ...
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Gunnar Luderer @gunnarenergyclima.bsky.social · 05/12/2023
Woran hakt es bei der Energiewende, und welche Prioritäten müssen gesetzt werden, um die Klimaziele erreichbar zu halten? Darüber konnte ich gestern mit Bundeskanzler #OlafScholz und der Brandenburger Forschungsministerin #ManjaSchüle sprechen. www.pik-potsdam.de/de/aktuelles...
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Jan Christoph Steckel @jansteckel.bsky.social · 05/12/2023
Explore the impact of #carbonpricing with our new @mcc-berlin.bsky.social Carbon Pricing Incidence Calculator. The online tool allows you to compare population segments, set carbon prices, and explore compensation mechanisms for 87 countries. Check it out here: cpic-global.net
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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 04/12/2023
Der DWD hat hohe Niederschläge für diesen Winter vorhergesagt. Weil die Meere besonders warm sind, also mehr verdunstet. Wenn es unter null Grad ist, heißt das Schnee. Und unter null ist es im Winter oft. Falls noch jemand meint, Rekord-Schneefall spräche gegen Erderwärmung.
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Simon Evans @drsimevans.carbonbrief.org · 27/11/2023
V proud to finally share this new analysis Revealed: How colonial rule radically shifts historical responsibility for climate change 🇺🇸 530GtCO2 (🇪🇺+🇬🇧 478, +28%) 🇨🇳 309 🇷🇺 239 +41%* 🇬🇧 130 +70% 🇧🇷 115 🇩🇪 92 🇮🇳 74 -15% 🇯🇵 73 🇮🇩 68 -24% — 🇳🇱 35 +181% 🧵 www.carbonbrief.org/revealed-how...
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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 27/11/2023
Wenn das Budget knapp ist aber Klimaschutz überlebenswichtig, dann ist es schlicht unverantwortlich, Gratis-Klimaschutz nicht sofort zu nutzen. Vor allem wenn er sogar eine Milliarde Euro an Nutzen bringt und die Mehrheit der Menschen seit langem dafür ist. #Tempolimit
carbonbrief.org
Autobahn speed limit would cut carbon and bring €1bn in benefits, study says - Carbon Brief
Bringing in a speed limit of 130kph across all of Germany’s motorways could result in nearly €1bn in welfare savings, a new study says.
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Lucas Chancel @lucaschancel.bsky.social · 21/11/2023
Thrilled to have been able to contribute to this sobering report by the United Nations Environment Program, alongside dozens of colleagues from around the globe. Read & share the Emissions Gap Report 2023 👇🏼 wedocs.unep.org/bitstream/ha...
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Zeke Hausfather @zekehausfather.com · 19/11/2023
We now have results from a modern reanalysis product (ERA5) that shows November 17th was in fact the first day the world has experienced that was 2C above the preindustrial (1850-1900) average. Hopefully it will prove transitory, but its a worrying sign.
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Leo Hickman @leohickman.carbonbrief.org · 20/11/2023
Striking frontcover of today's Guardian: "The 1% polluter elite" Reports on new Oxfam findings: "Richest 1% account for more carbon emissions than poorest 66%" www.theguardian.com/environment/...
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Glen Peters @glenpeters.bsky.social · 07/11/2023
How have Remaining Carbon Budgets changed over time? There have been many adjustments in different IPCC reports. Each budget also has a slightly different definition. [Forster et al 2023 is the same as Lamboll et al 2023] Read more: 4c-carbon.eu/resources/po...
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PIK_climate @pik-potsdam.bsky.social · 02/11/2023
Wieviel CO-2-Budget bleibt uns, um die globale Erwärmung auf maximal 1,5°C zu begrenzen? Eine neue Studie hat jetzt ein geringeres verbleibendes CO2-Budget berechnet. PIK-Forscher Gabriel Abrahão und weitere Wissenschaftler ordnen diese Ergebnisse ein: www.tagesspiegel.de/wissen/wie-v...
tagesspiegel.de
Wie viel CO₂ dürfen wir noch ausstoßen?: „Wir sollten nicht aufgeben, ganz im Gegenteil“
Um die Klimaerwärmung auf 1,5 Grad zu beschränken, dürfe weltweit nur noch halb so viel Kohlendioxid in die Atmosphäre gelangen, als Forscher bisher berechneten. Die kommenden sechs Jahre sind ent...
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Carbon Brief @carbonbrief.org · 26/10/2023
NEW – Guest post: Why all fossil fuels must decline rapidly to stay below 1.5C | Dr Ploy Achakulwisut, Peter Erickson, Prof Céline Guivarch, Prof Roberto Schaeffer, Dr Elina Brutschin, and Dr Steve Pye. Read here: bit.ly/45GNGtv
A fossil-fuelled power generating station in Denver, Colorado. Credit: Jim West / Alamy Stock Photo
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Reto Knutti @retoknutti.bsky.social · 25/10/2023
Wir könnten 2023 das 1.5°C Ziel erstmal überschreiten. Wo wir 2050 oder 2100 enden, ist unsicher. Was wir jedoch heute tun können, um auf Kurs zu kommen, ist klar. Es ist kein Problem von Technologie und Geld, sondern eine Frage der Umsetzung. www.tagesanzeiger.ch/1-5-grad-tem...
tagesanzeiger.ch
Ein besonderer Rekord – Klimagrenze zwischen «Himmel und Hölle»?
2023 könnte die gefährliche Linie von 1,5 Grad Temperaturanstieg zum ersten Mal überschritten werden. Warum dennoch das Pariser Klimaziel erreichbar bleibt.
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PIK_climate @pik-potsdam.bsky.social · 16/10/2023
Hey #bluesky world, PIK is new on here :) Looking forward to share latest PIK #science! Follow us for research news on #climate impacts, #climatechange, #solutions and much more. In case you're wondering what PIK does, watch this great explainer vid: www.youtube.com/watch?v=FzRx...
view above Telegraphenberg. Blue skies
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Simon Evans @drsimevans.carbonbrief.org · 17/10/2023
🚨2023 is now "virtually certain" (>99%) to be the HOTTEST year ever recorded🚨 It's set to smash the previous 2016 record by ~0.12C Every single one of the last 10 years is among the hottest 10 years on record New Carbon Brief analysis by @hausfath.bsky.social www.carbonbrief.org/analysis-gre...
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