Lightnews — Scholar-powered news

Christoph Bertram @christoph-bertram.bsky.social · 1h

IEA's estimate is for CO2 emissions from energy and industry to be flat (energy up 0.4%, but cement emissions down 5%)... www.iea.org/reports/glob...

CO2 Emissions – Global Energy Review 2025 – Analysis - IEA

Global Energy Review 2025 - Analysis and key findings. A report by the International Energy Agency.

www.iea.org

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Christoph Bertram @christoph-bertram.bsky.social · 3h

That's true and helpful context for readers, but that still leaves it ambiguous as to what is shown in the comparative $ figure (net or gross export value). And of course there are many structural differences to exporting oil and gas vs technology

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Christoph Bertram @christoph-bertram.bsky.social · 4h

The US also is a much larger gross exporter of crude than it is a net exporter (given imports from Canada), so it always is helpful if charts contain a note on whether the net or gross is shown

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Center for Global Sustainability @ctrglobsust.bsky.social · 18h

On @ddpinitiative.bsky.social's new report, @aliciaszhao.bsky.social told ICN recent US federal climate policy rollbacks have created uncertainty around delivery of US commitments under the Paris Agreement, but subnational players can drive emissions reductions: insideclimatenews.org/news/0610202...

New Report Marks a Decade of Progress, Challenges on Global Decarbonization - Inside Climate News

Extreme shifts in federal climate policy will make it hard for the U.S. to reach the Paris Agreement targets, but action by states, cities and businesses could still deliver significant emissions cuts...

insideclimatenews.org

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Colin Carlson @colincarlson.bsky.social · 1d

easy. ipcc wgi, wgii, wgiii

Richard Waite @waiterich.bsky.social · 1d

Brassica oleracea / Brassica oleracea / Brassica oleracea

Three dudes dressed three very different ways - first in a more conservative suit and tie, second in a short sleeve shirt and hat, third in a pink vest and tie

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Center for Global Sustainability @ctrglobsust.bsky.social · 1d

New report 📣
Ten years after the #ParisAgreement, a new @ddpinitiative.bsky.social report highlights progress in climate governance and policy across 21 countries and identifies priorities for future action to accelerate national transitions in the coming decade: ddpinitiative.org/ddp-report-2...

Illustration of people drawing pathways in blue, red, and purple with the text "A Decade of National Climate ACtion: Stocktake And The Road Ahead"

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Christoph Bertram @christoph-bertram.bsky.social · 4d

Wow, amazed to see that they still are so popular. Are so many people just indiferrent to the owner's politics, or even supportive? Or do you think it's more that they still offer the most convenient charging experience, especially for road trips through Europe?

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Richard Waite @waiterich.bsky.social · 6d

RIP Jane Goodall. As someone who learned about her work in elementary school, it was pretty cool as an adult to see her in her 80s on stage at the Global Climate Action Summit in 2018, talking about the advantages of eating more plants/less meat for animals, our health, nature, and the climate. 💚

Jane Goodall on stage being interviewed at the Global Climate Action Summit in California in Sept 2018. Behind the people is a scene of a lush forest.

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Andreas Sieber @andreassieber.bsky.social · 7d

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Lots of new climate targets aka #NDCs coming in this week, many having BAU based targets, here the overview:

🎯 Russia: GHG reduction of 65-67% by 2035 (vs 1990 )
🎯 Bangladesh: GHG reduction of 20.31% by 2035 (vs business-as-usual)
🎯 Mauritius: GHG reduction of 40% by 2035 (vs BAU)

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tigard-stripes.bsky.social @tigard-stripes.bsky.social · 7d

Buy the Ebikes! 🚲⚡️

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Alex Barron @alexrbarron.bsky.social · 7d

I should also flag the upcoming 2026 AASHE decarb academy for you, @jeffmanuel.bsky.social, and anyone else following.

bsky.app/profile/alex...

Alex Barron @alexrbarron.bsky.social · 14d

You're working to decarbonize your campus, right? If you want a 6 month opportunity to get smart on decarbonization, the 2026 Campus Decarbonization Academy is worth checking out.

www.aashe.org/calendar/cam...

AASHE’s Campus Decarbonization Academy returns in 2026, and applications are now open! This six-month, cohort-based program offers actionable solutions to guide your institution through the complex process of decarbonization, with support from campus and industry experts every step of the way.

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Christoph Bertram @christoph-bertram.bsky.social · 7d

That can be the case, especially if you have lots of HPC or other high demand lab stuff on campus, but if it is more mostly buildings with offices and seminar rooms that need power, heat and coolness, then it can also be more than 30% or higher, especially after tackling efficiency

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Christoph Bertram @christoph-bertram.bsky.social · 7d

How cold? So cold that energy demand in winter is > summer? In any case, solar on-site (particularly on parking lots, but also larger buildings) can make a meaningful contribution, but the economics of course improve a lot if summer demand > winter demand (as is the case here at UMD).

Carbon Footprint | Office of Sustainability

sustainingprogress.umd.edu

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Carbon Brief @carbonbrief.org · 8d

Thank you to everyone who joined our webinar on China’s new climate pledge🎙️

Thanks also to our panelists: Li Shuo @laurimyllyvirta.bsky.social @rynacui.bsky.social @anikanpatel.carbonbrief.org @drsimevans.carbonbrief.org

If you missed the webinar, you can watch it here ⬇️
buff.ly/zUSLhUp

Webinar: Experts discuss what China's new climate pledge means for the world - Carbon Brief

Carbon Brief hosts webinar with China climate policy experts to discuss assessments of what the NDC means for China’s emissions pathway.

buff.ly

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Christoph Bertram @christoph-bertram.bsky.social · 9d

Would be interesting to see a survey in US: "Do you think that electric vehicle sales as share of total vehicle sales are higher in Thailand or the US?"
I have the impression that many Americans are not aware of how the US is far behind in a clearly superior technology that will dominate the future

LeRaffl @leraffl.bsky.social · 10d

🇹🇭 Thailand - August 25 - BEV Trajectory

20.8% BEV
1.2% PHEV
78.0% ICE (of which 11.7%p were HEV)

Trailing 12 months are:
15.9% BEV
2.7% PHEV
81.4% ICE (of which 20.5%p were HEV)

Graphs are available in the Gallery: leraffl.github.io/LeRaffl-Gall...

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Alaa Al Khourdajie @dralaaclimate.bsky.social · 9d

New working paper out: "Four scenarios for an @ipcc.bsky.social navigating Artificial Intelligence"

Led by @hollyjeanbuck.bsky.social, with @shinasayama.bsky.social and Oliver Geden

Thread 🧵

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Hannah Daly @hannahdaly.ie · 9d

I'm on my way to Vienna to participate in the first Overshoot Conference, at IIASA.

I'll present in the theme of "Highest possible mitigation ambition under overshoot":
"Towards a framework for aligning national mitigation scenarios with 1.5°C in an era of overshoot" with @roisinmoriarty.com

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Iain Soutar @isoutar.bsky.social · 9d

I'm not American, so I can't confirm that this is un-American, but it's certainly unIntelligent.

Peter Gleick @petergleick.bsky.social · 9d

Setting aside the absolute scientific idiocy of the specifics here, reflect for just a moment on the fact that there's a list of "banned words" at all.
That's fascism and unAmerican.

"Energy Dept adds #climatechange and emissions to list of banned words"

subscriber.politicopro.com/article/2025...

POLITICO Pro: Energy Dept. adds ‘climate change’ and ‘emissions’ to banned words list

It is the latest in a series of Trump administration efforts to dispute, silence or downplay climate change.

subscriber.politicopro.com

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Christoph Bertram @christoph-bertram.bsky.social · 9d

Germany lost both the exports to China, but also a significant share of exports to third countries to competition by Chinese EV manufacturers, so Ingolstadt would probably be in a much better situation with a faster and more ambitious green transition. Allowing Audi to stick to ICEs instead...

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Costa Samaras @costasamaras.com · 11d

Limits academic mentions? Trans rights are human rights. Get lost.

Texas Tribune @texastribune.org · 11d

Breaking: Texas Tech chancellor limits academic mentions of transgender and nonbinary identities at five universities.

Texas Tech chancellor limits academic mentions of transgender and nonbinary identities at five universities

Advocacy groups say the new state law, presidential executive order and gubernatorial letter Tedd Mitchell cited do not prohibit classroom discussions of particular LGBTQ+ identities.

www.texastribune.org

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Richard Waite @waiterich.bsky.social · 11d

“Maryland led all states with a 49% reduction in per capita CO2 emissions from energy consumption between 2005 and 2023, as the state’s total CO2 emissions fell 43% and population grew 11%.”

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Christoph Bertram @christoph-bertram.bsky.social · 11d

Two years after the Nazis came to power, they changed the name of the 'Reichswehrminister' (Minister of Defense) to 'Reichskriegsminister' (Minister of War) and even before that had all military personnel pledge an oath to Hitler instead of to the constitution
en.m.wikipedia.org/wiki/Werner_...

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Todd Tucker @toddntucker.com · 11d

Join me and @greenprofgreen.bsky.social on Tuesday at 1 pm ET to discuss her new book, "Existential Politics: Why Global Climate Institutions Are Failing and How to Fix Them."
events.zoom.us/ev/AtXUfZzc-...

Roosevelt Events

events.zoom.us

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Christoph Bertram @christoph-bertram.bsky.social · 11d

My fantastic colleague @rynacui.bsky.social is now also on bluesky!
If you miss the webinar on Monday, or want to read our analysis on High Ambition for 2035 for China and 11 other large emitters (currently incorporating the new China targets):
www.country-ambition.cgs.umd.edu/

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Christoph Bertram @christoph-bertram.bsky.social · 13d

Great to see this product of work over the last half year with many great colleagues at @ctrglobsust.bsky.social launched.

What are possible high ambition emission pathways until 2035 for major countries, and their implications in the electricity sector and for fossil fuels? Find out 👇

Center for Global Sustainability @ctrglobsust.bsky.social · 13d

Just launched 📣
CGS's new flagship website on Country Climate Ambition offers critical insight for the Paris process through in-depth analyses and policy recommendations for major-emitting countries, as they set and seek to achieve ambitious 2035 #NDCs: www.country-ambition.cgs.umd.edu

A global map with colored dots indicating countries with analyses from a new CGS report. The text overlay reads: "Country Climate Ambition: High Ambition Pathways for National and Global Climate Goals; In the midst of the third round of the NDC cycle, the Center for Global Sustainability has launched a new flagship website on Country Climate Ambition, which provides in-depth analyses of plausible, high-ambition pathways and policy recommendations for 12 major-emitting countries towards 2035 and net-zero goals: Australia, Brazil, Canada, China, India, Indonesia, Japan, Mexico, Republic of Korea, and South Africa.

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