Edgar Hertwich
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edgarhertwich.bsky.social
Edgar Hertwich
@edgarhertwich.bsky.social
640 followers 210 following 200 posts

EU Climate advisory board
Norwegian University of Science and Technology, NTNU
International Institute of Applied Systems Analysis, IIASA

Videos
Environmental science 38%
Engineering 19%
Posts Replies Media Videos

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · 3d
How can we get empty-nesters to move to smaller flats and make their residences available to young families? This is what we need to do to address the housing shortage with paving over more green spaces.
Want to cut your carbon footprint? Move out of your house
There’s no getting around it: downsizing the kind of housing you live in is the best thing you can do for the environment.
norwegianscitechnews.com

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · 5d
Some jurisdictions have made a real effort and it shows in the numbers. This is a demonstration that mitigation is possible, countering the “we can’t do anything about it” narrative. Therefore it is so important.
elinlb.bsky.social Elin Lerum Boasson @elinlb.bsky.social · 5d
The UNEP GAP report is not the kind of reading that makes climate scientists smile. But this figure is not all bleak - look at all the emissions curves pointing downwards!

The full report: www.unep.org/resources/em...

Reposted by Edgar G. Hertwich

elinlb.bsky.social
Elin Lerum Boasson @elinlb.bsky.social · 5d
The UNEP GAP report is not the kind of reading that makes climate scientists smile. But this figure is not all bleak - look at all the emissions curves pointing downwards!

The full report: www.unep.org/resources/em...

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · 6d
Do you think this is causal or both related to diet?

Reposted by Edgar G. Hertwich

saleemali.bsky.social
Saleem H. Ali @saleemali.bsky.social · 28d
New report from United Nations International Resource Panel suggests, circular economy strategies must be prioritized - otherwise we face the prospect of a $450 billion financing gap for critical minerals. Cc: @edgarhertwich.bsky.social www.forbes.com/sites/saleem...
Recycling Rare Earth Minerals Can Address Military Demand
A new report by the United Nations suggests circular economy strategies must be prioritized or we face a $450 billion financing gap for critical minerals.
www.forbes.com

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Oct 5
Here on the excess construction. www.linkedin.com/posts/edgarh...
Resource and the environmental burdens of excessive construction in China's urban housing sector | Edgar Hertwich
4000 km2 of housing empty in China Excessive urban development has built so much stock that there is no need for new construction until 2030. The excess, now empty homes required 2.2 billion tons of ...
www.linkedin.com

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Oct 5
Really glad to see this peak and decline of #GHG emissions from #cement production. Surprisingly, China is not yet declining, despite their huge inventory of empty buildings. Great work by @robbieandrew.bsky.social

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Oct 5
Takk for et flott innlegg, @rosendahlke.bsky.social

Reposted by Edgar G. Hertwich

robbieandrew.bsky.social
Robbie Andrew @robbieandrew.bsky.social · Oct 5
And now I have a new page on my website dedicated to cement. 🥳
Cement production and emissions
Collection of data on the production of cement and the emissions associated with its production.
robbieandrew.github.io

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Sep 26
I commented on this here: www.linkedin.com/posts/edgarh...
Resource and the environmental burdens of excessive construction in China's urban housing sector | Edgar Hertwich
4000 km2 of housing empty in China Excessive urban development has built so much stock that there is no need for new construction until 2030. The excess, now empty homes required 2.2 billion tons of ...
www.linkedin.com

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Sep 26
4000 km2 of new homes empty in China, with dramatic environmental consequences. 2.2 billion tons of unneeded material extraction, 1.4 billion tons of CO2 could have been avoided. Important work by Shi Lei and team.

www.sciencedirect.com/science/arti...
Resource and the environmental burdens of excessive construction in China's urban housing sector
In China's complex urbanization process, excessive construction has led to large-scale housing vacancies, hindering the development of low-carbon and …
www.sciencedirect.com

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Sep 5
Was ist, wenn man Weltmarktpreise zugrunde legt?

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Sep 4
The topic has become part of the discussion in the current election campaign.
tv.nrk.no/serie/dagsny..., last item.
6/6
Dagsnytt 18 - TV: I går · Kvinner må ta kjønnstest i Friidretts-VM - NRK TV
Alle utøvere i kvinneklassen i Friidretts-VM må ta en test for å bekrefte at de er biologiske kvinner. Dette er i strid med norsk lov.
tv.nrk.no

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Sep 4
The Academy of Sciences' work was triggered by findings of the International Resource Panel @unep.org which has pointed out that more intensive use / demand reduction could lead to large reductions in material use and #GHG emissions.
5/
www.resourcepanel.org/reports/reso...
Resource Efficiency and Climate Change | Resource Panel
This report conducts a rigorous assessment of the contribution of material efficiency to GHG abatement strategies. More concretely, it assesses the reduction potential of GHG emissions from material e...
www.resourcepanel.org

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Sep 4
Experts presented examples of resource reuse, such as refurbishment, reuse of components, and other examples of low-carbon development. There are many great examples, that need main-streaming.
youtu.be/MsckPBW1k9s
4/
Mot net-zero for byers klimagassutslipp og naturtap
YouTube video by Det Norske Videnskaps-Akademi
youtu.be

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Sep 4
Too many homes are built as single family. 80% of new demand is from the population above 60, who needs smaller residences with short ways in areas with many amenities.
dnva.no/sites/defaul...
3/
dnva.no

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Sep 4
Norway has significant tax subsidies for home ownership, that rise with income and wealth. The more expensive your home, the higher the tax subsidy. This leads to a highly uneven distribution of living space, high costs, tiny rooms for students, too large houses for the elderly. 2/
Mot net-zero for byers klimagassutslipp og naturtap
Oppfølgingsmøte i Akademiet 19.6.2025: Nordmenn har størst boligareal per innbygger i Europa, men det viser seg at vi har liten bevissthet rundt sammenhengene mellom boligpolitikk, klimapolitikk og bi...
dnva.no

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Sep 4
Norwegian Academy of Science report points ways towards climate- and nature-neutral settlement development options.

The report has now been published. 1/

dnva.no/detskjer/202...
dnva.no

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Aug 27
Yes it can. We are working on Ghana and Bangladesh now.

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Aug 12
Kinder

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Aug 10
Falsch: Der Helm kann mitgeliefert werden und ist bei manchen Betreibern in Skandinavien am Roller befestigt

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Aug 6
Crypto as the new CDO? A lightly regulated asset class, stablecoins have an unfair advantage compared to other assets. The lack of oversight is a systemic risk to the financial system. We are taken for another ride, as before the financial crisis of 2007/8? on.ft.com/4flWxag
Tech does not deserve special legal treatment
Pulling down regulatory barriers to aid innovation ignores the fact that they protect the public from harm
on.ft.com

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Aug 6
Keine Frage. Die ganze liberale Ordnung, innerhalb derer FFF erfolgreich war, ist jetzt unter die Räder gekommen. Das ist nicht ein Versagen von FFF, sondern unserer Gesellschaft insgesamt. Wir brauchen ein breiteres Narrativ und Wille zur politischen Organisation und Handlung, um dem zu entgegenen.

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Aug 6
.. anerkannt. Der Fortschrittsbericht des Europäischen Klimarates hat ihn dokumentiert. Leider ist es zu einer massiven Gegenbewegung gekommen, die sich in erster Linie über die neuen Medien mit absurden Argumenten ausgebreitet hat.

climate-advisory-board.europa.eu/reports-and-...
Towards EU climate neutrality: progress, policy gaps and opportunities
climate-advisory-board.europa.eu

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Aug 6
@steurer.bsky.social Die Analyse muss man nuanzieren: FFF war sehr erfolgreich, weil es massiv zu einer Stärkung der Klimapolitik durch Grüne Regierungsbeteiligungen und den Green Deal geführt hat. Ein grosser Schritt vorwärts, aber halt nur einer. Leider hat die Bewegung diesen Erfolg selbst nie ..

edgarhertwich.bsky.social
Edgar Hertwich @edgarhertwich.bsky.social · Aug 2
A wide range of construction styles and circumstances shapes energy and materials use in North Africa and West Asia . In some countries, construction cause more GHG than energy use. We show how the rise in emissions can be mitigated. lhttps://www.eurekalert.org/news-releases/1091250
Fully possible to make residential construction more environmentally friendly
Researchers took a closer look at resource use in the housing sector in West Asia and North Africa with a view to 2050.Their results show that it is possible to reduce greenhouse gas emissions in this...
www.eurekalert.org

Reposted by Edgar G. Hertwich

jessedjenkins.com
Jesse D. Jenkins @jessedjenkins.com · Jan 23
China couldnt compete w/the West in producing internal combustion vehicles, so it made a huge bet c. 2009: invest in EVs & help Chinese automakers leapfrog incumbents from the West. That gamble has clearly paid off with declining oil imports & expanding auto exports www.cnn.com/2025/01/23/c... 🔌🚗 🔌💡
China made a bet decades ago because it couldn’t compete with the US on cars. That bet is paying off big | CNN
By any measure, China’s EV growth has been extraordinary — more than half of new cars sold last year were electric. The global implications could be staggering.
www.cnn.com

Reposted by Edgar G. Hertwich

esabcc.bsky.social
European Scientific Advisory Board on Climate Change @esabcc.bsky.social · Feb 7
On 21 Feb, the @esabcc.bsky.social will release a report on how to support a rapid and sustainable scale up of #carbon dioxide removals to reach EU climate targets. Webinar on 25 Feb, sign up here: climate-advisory-board.europa.eu/news/eu-clim... #EUClimateAction #ClimateNeutrality #CarbonRemoval
EU climate Advisory Board to publish new report on carbon dioxide removals on 21 February
climate-advisory-board.europa.eu

Reposted by Edgar G. Hertwich, Bas Jacobs

financialtimes.com
Financial Times @financialtimes.com · Feb 17
Opinion: Europeans need to start preparing fast for the day when the US security guarantee to Europe is definitively removed www.ft.com/content/11f1...
James Ferguson illustration of a Nato flag with the outline of Europe torn out. Overlaid text reads 'Opinion: Vance's real warning to Europe'

Reposted by Edgar G. Hertwich

petergleick.bsky.social
Peter Gleick @petergleick.bsky.social · Mar 4
The anti-environment SCOTUS has:
Limited EPA to from regulating #water pollution, sewage discharges.
Blocked EPA from regulating air pollution that crosses state lines.
Stopped EPA from capping #climate change emissions.
Eliminated protections for wetlands, inland waters, and aquatic ecosystems.