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Gunnar Luderer

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H-index: 78
Economics 31%
Environmental science 26%
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Reposted by: Gunnar Luderer

philippverpoort.bsky.social
📄 Heute erschienen: unser Report zur langfristigen Wettbewerbsfähigkeit energieintensiver Grundstoffe in DE und der Option des Imports grüner Vorprodukte.

🔗 ariadneprojekt.de/publikation/...

Zusammenfassung der Kernergebnisse im 🧵 … 1/7
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Reposted by: Gunnar Luderer

wflamb.bsky.social
Here is a first version: github.com/lambwf/Tidy-...

Any feedback welcome!
github.com
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Reposted by: Gunnar Luderer

clarabachorz.bsky.social
⚡ New paper in @natcomms.nature.com on decarbonizing the hard-to-electrify sectors!

Which abatement option is most cost-efficient for the steel, cement, chemical, or long-distance transport sectors? In this paper, we explore the mitigation landscape of each sector.

🔗 Article: rdcu.be/ejLI0
Exploring techno-economic landscapes of abatement options for hard-to-electrify sectors
Nature Communications - Abatement options for hard-to-electrify sectors (e.g., steel, aviation) face uncertainty in future costs and feasibility. This techno-economic analysis shows that despite...
rdcu.be
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Reposted by: Gunnar Luderer

ariadneprojekt.bsky.social
#Ariadne-Forscher @gunnarenergyclima.bsky.social vom @pik-potsdam.bsky.social zu den notwendigen #Investitionen für eine erfolgreiche #Energiewende, die Deutschlands #Wettbewerbsfähigkeit sichert.

Mehr dazu im neuen #Szenarienreport2025 vom Kopernikus-Projekt Ariadne 👉 buff.ly/SSTJHC2
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Reposted by: Gunnar Luderer

jessedjenkins.com
China’s government has plans to add steel, aluminum, and cement producers to the set of entities covered by emissions cap and trade schemes by the end of 2025 www.bloomberg.com/news/article...
🔌💡
China Vows to Expand Carbon Market in Push to Control Emissions
China’s top leaders pledged to expand the nation’s emissions trading system to cover more industries amid a wider push to accelerate efforts to limit greenhouse gas pollution.
www.bloomberg.com
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Reposted by: Gunnar Luderer

wpschill.bsky.social
Eine sehr umfassende Modellierungsstudie, zu einem guten Teil auf Basis offener Modelle 👍 Gut gemacht, @gunnarenergyclima.bsky.social und @nworbmot.bsky.social !👏
Im Folgenden ein paar schnelle Takes zu ein paar Highlights:
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Reposted by: Gunnar Luderer

isabellamweber.bsky.social
Once upon a time, the social democrats were the workers’ party in Germany.

In the election today the extreme right AfD gained 3x more support from workers than the SPD.
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by Gunnar Luderer

gunnarenergyclima.bsky.social
(3) Very difficult to see how timeline and process of this report can be salvaged. The IPCC assessments on mitigation provide essential guidance for climate policy processes, and will be crucial to informing the next global stock take and subsequent climate negotiations on emission reduction targets
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by Gunnar Luderer

gunnarenergyclima.bsky.social
(2)This stop-work order comes on the eve of an IPCC plenary scheduled for next week. Hardly a coincidence: That plenary is supposed to approve the outline for the next assessment next IPCC report on climate change mitigation developed by Kate Calvin and team together with dozens of other scientists.
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by Gunnar Luderer

gunnarenergyclima.bsky.social
(1) Kate is an absolutely outstanding scientist who has made many essential contributions to climate science, such as transformation pathways towards climate stabilization. I had the privilege to work with her on several projects. So heartbreaking to see her curtailed in this way.
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by Gunnar Luderer

gunnarenergyclima.bsky.social
🚨 Now CCN-official 🚨 Trump issues stop-work-order to NASA chief scientist #KateCalvin, who is also co-chair of the IPCC's working group in charge of the next assessment on climate change mitigation. This is brutal, on so many levels. edition.cnn.com/2025/02/21/c...
Trump bars federal scientists from working on pivotal global climate report | CNN
The Trump administration told US government scientists working on a vital global climate report to stop their work – the president’s latest move to withdraw the US from global climate action and resea...
edition.cnn.com
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by Gunnar Luderer

gunnarenergyclima.bsky.social
🚨Die von den USA finanzierte Leitung der Weltklimarat (IPCC) Arbeitsgruppe 3, die sich mit Klimaschutzstrategien beschäftigt, ist massiv unter Beschuss. Das hat dramatische Auswirkungen auf die wissenschaftliche Grundlage der Klimapolitik weltweit. Ein dunkelschwarzer Tag für die Klimaforschung.
katharinehayhoe.com
Katharine Hayhoe @katharinehayhoe.com · Feb 21
‼️The US-based @ipcc.bsky.social technical support unit (TSU) for Working Group 3 Co-Chairs has been terminated, and the US won’t be attending next week’s IPCC meeting where the AR7 chapter outlines will be approved.

More by @afreedma.bsky.social here:
Scoop: U.S. delegation pulled from key U.N. climate science meeting
The IPCC meeting in China is slated to determine the content in the group's next series of reports.
www.axios.com
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by Gunnar Luderer

gunnarenergyclima.bsky.social
🚨 If confirmed, horrible news for science-based policy advice: The IPCC WG3 - which deals with strategies for reaching climate goals - about to get defunded.
katharinehayhoe.com
Katharine Hayhoe @katharinehayhoe.com · Feb 21
‼️The US-based @ipcc.bsky.social technical support unit (TSU) for Working Group 3 Co-Chairs has been terminated, and the US won’t be attending next week’s IPCC meeting where the AR7 chapter outlines will be approved.

More by @afreedma.bsky.social here:
Scoop: U.S. delegation pulled from key U.N. climate science meeting
The IPCC meeting in China is slated to determine the content in the group's next series of reports.
www.axios.com
1 1 4

by Katharine Hayhoe — Reposted by: Gunnar Luderer, Peter A. Stott, Nicole Boivin , and 16 more

katharinehayhoe.com
‼️The US-based @ipcc.bsky.social technical support unit (TSU) for Working Group 3 Co-Chairs has been terminated, and the US won’t be attending next week’s IPCC meeting where the AR7 chapter outlines will be approved.

More by @afreedma.bsky.social here:
Scoop: U.S. delegation pulled from key U.N. climate science meeting
The IPCC meeting in China is slated to determine the content in the group's next series of reports.
www.axios.com
43 490 660

Reposted by: Gunnar Luderer

pik-potsdam.bsky.social
Ist #Klimaschutz für die schlechte Wirtschaft verantwortlich? Nein, so PIKs @gunnarenergyclima.bsky.social: "Die Probleme der deutschen Wirtschaft sind von struktureller Natur und sie sind tieferliegend." Die Wirtschaft müsse die Chancen der "grünen Wende" aktiv annehmen.
www.dw.com/de/muss-deut...
Muss Deutschland zwischen Klima und Wirtschaft wählen? – DW – 17.02.2025
Im Wahlkampf zur vorgezogenen Bundestagswahl werden Stimmen laut, die den Klimaschutz im Namen von Wirtschaftsinteressen zurückdrehen wollen, obwohl Fachleute davor waren. Gibt es denn das eine nur oh...
www.dw.com
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by Gunnar Luderer — Reposted by: Matthias Kalkuhl

gunnarenergyclima.bsky.social
Exciting job opportunity in our energy transition lab @pik-potsdam.bsky.social 👇
falkoueckerdt.bsky.social
Falko Ueckerdt @falkoueckerdt.bsky.social · Feb 10
Job: Circularity & industry transformation

Do you want to learn about material flow analyses and modeling of transformation scenarios?

@pik-potsdam.bsky.social is a renowned institute with scientific and real-world impact - and a beautiful location near Berlin

All info here: tinyurl.com/24udxdkv
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Reposted by: Gunnar Luderer

Reposted by: Gunnar Luderer

falkoueckerdt.bsky.social
Job: Circularity & industry transformation

Do you want to learn about material flow analyses and modeling of transformation scenarios?

@pik-potsdam.bsky.social is a renowned institute with scientific and real-world impact - and a beautiful location near Berlin

All info here: tinyurl.com/24udxdkv
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by Gunnar Luderer

gunnarenergyclima.bsky.social
Sorry, but your electricity prices are just totally off. Households currently pay around 30 ct/kWh (see e.g. www.zeit.de/wirtschaft/e...), and for industry electricity demand it is much lower. If some consumers
still pay higher prices, it's a legacy effect from the gas crisis, not renewables.
Energiemonitor: Schafft Deutschland die Energiewende?
Wo gehen neue Windräder in Betrieb? Woher kommt der Strom? Reicht das Gas für den Winter? Der komplett überarbeitete ZEIT-ONLINE-Energiemonitor gibt Antworten.
www.zeit.de
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Reposted by: Gunnar Luderer

carbonbrief.org
NEW – EU’s solar and wind growth pushes fossil-fuel power to lowest level in 40 years | @mollylempriere.carbonbrief.org

Read here: https://buff.ly/4hfcKhk
EU electricity generation from coal, gas, wind and solar, terawatt hours, 1990-2024. Source: Ember.
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Reposted by: Gunnar Luderer, Bing Xue, Robert Pietzcker

adrianodenweller.bsky.social
🚨New Paper and Policy Brief🚨

How has green hydrogen developed recently? How much hydrogen is needed for 1.5°C? And what are plausible future pathways?

In a new Nature Energy study, we look at these questions.

🔗Article: https://buff.ly/3WeOh3G
🔗Policy Brief: https://buff.ly/3C2F6wm

#EnergySky
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Reposted by: Gunnar Luderer

cleanenergywire.bsky.social
Germany's #Climate Action Law

National targets:
-Reduce GHG emissions by at least 65% by 2030 (over 1990)
-88% by 2040
-Net greenhouse gas neutrality by 2045
-Negative #emissions after 2050

factsheet update:
www.cleanenergywire.org/factsheets/g...
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by Gunnar Luderer

gunnarenergyclima.bsky.social
Das eigentliche Standortrisiko ist, jetzt mitten in der Klimaschutztransformation steckenzubleiben und die Märkte der Zuunft zu verlieren. "Kluge, vorwärtsgerichtete Klimapolitik ist eine Form der langfristigen Wohlstandssicherung."
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by Gunnar Luderer

gunnarenergyclima.bsky.social
Bemerkenswertes Interview von Ottmar #Edenhofer @pik-potsdam.bsky.social zu Klimaschutz und Wirtschaft. www.noz.de/deutschland-...
Ökonom Edenhofer: „Klimaschutz ist kein Luxusgedöns!“
Ökonom Ottmar Edenhofer warnt CDU vor Rückschritten beim Klimaschutz nach der Bundestagswahl: „Deutschland überlebt nicht als Industriemuseum“
www.noz.de
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Reposted by: Gunnar Luderer

wpschill.bsky.social
13/ 🎙️ If you prefer a (German) soundtrack instead of interactive images: @aroth.bsky.social and I, with the support of @andreasloeschel.bsky.social & @gunnarenergyclima.bsky.social , discussed the government's energy transition balance in detail in episode #26 of the @diw.de podcast #fossilfrei.
DIW Berlin: 'fossilfrei' - der Energiewendepodcast des DIW Berlin
Folgen Die Energiewende erscheint oft kompliziert und unübersichtlich. Die Macher des "DIW-Monitor Energiewende", Alexander Roth und Wolf-Peter Schill, sortieren das für euch. Wir diskutieren, auch…
www.diw.de
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Reposted by: Gunnar Luderer

wpschill.bsky.social
1/ The German parliament was dissolved today after the failure of the "traffic light" government. What has the 🚦 achieved in terms of the energy transition? Here's a final update of the @diw.de #Ampelmonitor Energiewende in English! 🇩🇪 🔌↩️

Little 🧵 with a few graphs on key technologies 🔽
DIW Berlin: Ampel-Monitor Energiewende (Monitor of the German
BLOG Overview Note on the graphs Explanations on share of renewable energy in the electricity sector Why "traffic light"? Energy targets of the German government - and what has been achieved The…
www.diw.de
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by Gunnar Luderer

gunnarenergyclima.bsky.social
Latest German energy statistics allow an early peak on CO2 balance for 2024. Coal declines, but this along with changes in oil and gas use this will translate to a mere 15 MtCO2 decline relative to 2023 (own estimate). Germany needs twice as much, 30 MtCO2 per year, to reach its -65% goal in 2030.
wettengel.bsky.social
Julian Wettengel @wettengel.bsky.social · Dec 18
#Renewables supplied 55% of electricity used in Germany in 2024

> #coal use down significantly
> almost no change for #natgas
> 1st full yr w/o #nuclear
> net power importer

www.cleanenergywire.org/factsheets/g... @janrosenow.bsky.social @drsimevans.carbonbrief.org @simone-peter.bsky.social
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Reposted by: Gunnar Luderer

wettengel.bsky.social
#Renewables supplied 55% of electricity used in Germany in 2024

> #coal use down significantly
> almost no change for #natgas
> 1st full yr w/o #nuclear
> net power importer

www.cleanenergywire.org/factsheets/g... @janrosenow.bsky.social @drsimevans.carbonbrief.org @simone-peter.bsky.social
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by Gunnar Luderer

gunnarenergyclima.bsky.social
Oh wow! Clean and tidy GHG inventory data tables 👇. Thanks, @wflamb.bsky.social !
wflamb.bsky.social
William F. Lamb @wflamb.bsky.social · Dec 17
Here is a first version: github.com/lambwf/Tidy-...

Any feedback welcome!
github.com
5

by Gunnar Luderer

gunnarenergyclima.bsky.social
Demand flexibility would be particularly important for Germany - given ambitious wind and solar build-out, and growing potential for flexible demands from heat pumps and electric cars. However, still way behind most other European countries regarding smart meter rollout. A costly policy failure!
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