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Reposted by Gunnar Luderer

Clara Bachorz @clarabachorz.bsky.social · Apr 29

⚡ 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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Kopernikus-Projekt Ariadne @ariadneprojekt.bsky.social · Mar 10

#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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Jesse D. Jenkins @jessedjenkins.com · Mar 6

Fun fact: iron & steel-making in China produces about 2x the total GHG emissions as China's entire transportation sector, and cement production is about equal to transportation. So while CO2 prices in China's ETS are expected to be modest, including these sectors under emissions caps is a big deal.

Jesse D. Jenkins @jessedjenkins.com · Mar 6

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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Wolf-Peter Schill @wpschill.bsky.social · Mar 6

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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Isabella M. Weber @isabellamweber.bsky.social · Feb 23

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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Gunnar Luderer @gunnarenergyclima.bsky.social · Feb 22

(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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Gunnar Luderer @gunnarenergyclima.bsky.social · Feb 22

(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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Gunnar Luderer @gunnarenergyclima.bsky.social · Feb 22

(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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Gunnar Luderer @gunnarenergyclima.bsky.social · Feb 22

🚨 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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Gunnar Luderer @gunnarenergyclima.bsky.social · Feb 21

🚨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.

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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Gunnar Luderer @gunnarenergyclima.bsky.social · Feb 21

🚨 If confirmed, horrible news for science-based policy advice: The IPCC WG3 - which deals with strategies for reaching climate goals - about to get defunded.

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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Reposted by Gunnar Luderer

PIK_climate @pik-potsdam.bsky.social · Feb 17

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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Gunnar Luderer @gunnarenergyclima.bsky.social · Feb 13

Exciting job opportunity in our energy transition lab @pik-potsdam.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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Gunnar Luderer @gunnarenergyclima.bsky.social · Feb 3

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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Carbon Brief @carbonbrief.org · Jan 22

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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Adrian Odenweller @adrianodenweller.bsky.social · Jan 14

🚨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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Clean Energy Wire | CLEW @cleanenergywire.bsky.social · Jan 13

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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Gunnar Luderer @gunnarenergyclima.bsky.social · Jan 13

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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Gunnar Luderer @gunnarenergyclima.bsky.social · Jan 13

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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Wolf-Peter Schill @wpschill.bsky.social · Dec 27

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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Wolf-Peter Schill @wpschill.bsky.social · Dec 27

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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Gunnar Luderer @gunnarenergyclima.bsky.social · Dec 18

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.

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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Gunnar Luderer @gunnarenergyclima.bsky.social · Dec 17

Oh wow! Clean and tidy GHG inventory data tables 👇. Thanks, @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

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Gunnar Luderer @gunnarenergyclima.bsky.social · Dec 16

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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Christian Odendahl @codendahl.bsky.social · Dec 16

Always wanted someone to do exactly that chart! Beautiful, isn't it?

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