Malte Meinshausen
@meinshausen.bsky.social
3.4K followers 94 following 10 posts
The University of Melbourne & Climate Resource
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meinshausen.bsky.social
Yes, it is painful. And it would be less painful if there were good options of how Tesla drivers could be a pain to Elon.

My attempts to start a discussion about that were banned in 'Tesla owners' facebook forums. Those have remarkable membership numbers (75k in Australia). You know what to do.
meinshausen.bsky.social
Maybe one can replace "to drive a Tesla" with:
- to not be ashamed driving one
- to not have a bumper sticker expressing that
- to not pledge never to buy one again
- .. etc.

Just asking for a friend .
Reposted by Malte Meinshausen
valmasdel.bsky.social

"Before mass leaders seize the power to fit reality to their lies, their propaganda is marked by its extreme contempt for facts as such, for in their opinion fact depends entirely on the power of man who can fabricate it"
- Hannah Arendt, the origin of totalitarism
meinshausen.bsky.social
This bluesky space becomes enjoyable.

Just posted my probably last ever 'X'...

An entry into the competition for best Tesla bumper stickers, now that he is full throttle for fossil fuels and everything else Trump stands for.

LET HIM GO TO MARS.
Reposted by Malte Meinshausen
carbonbrief.org
NEW – COP29: Key outcomes agreed at the UN climate talks in Baku

#COP29

➡️ https://buff.ly/3V5jndk
Reposted by Malte Meinshausen
glenpeters.bsky.social
After net zero CO2 emissions do you want to halt or continue global warming?

If you want to halt global warming, the point of getting to net zero emissions, then we better define it correctly!

The key is how “removals” are defined & the role humans play.

doi.org/10.1038/s415...

1/
Reposted by Malte Meinshausen
rarohde.bsky.social
A new paper led by Sebastian Sippel just appeared in Nature arguing that ocean temperature measurements in the early 20th century have a cold bias.

It's a fun story illustrating the process of scientific discovery, so let me talk about it a bit. 🧵

www.nature.com/articles/s41...
Early-twentieth-century cold bias in ocean surface temperature observations - Nature
Independent statistical reconstructions of the global mean surface temperature from either ocean or land data show that existing estimates of early-twentieth-century ocean surface temperatures are too...
www.nature.com
Reposted by Malte Meinshausen
carlschleussner.bsky.social
Understanding the consequences of potential overshoot above the 1.5°C warming level has been the focus of the PROVIDE project and the work by a great group of interdisciplinary authors has just been published in @natureportfolio.bsky.social
www.nature.com/articles/s41...
Here’s what we found: 1/
Overconfidence in climate overshoot - Nature
Aiming for declining global temperatures can limit long-term climate risks compared with a mere stabilization of global warming, including sea-level rise and cryosphere changes.
www.nature.com
Reposted by Malte Meinshausen
drsimevans.carbonbrief.org
Wow, didn't realise Germany's coal power output was down by two-thirds in a decade

It's currently on track for a virtual phaseout by 2030!
Reposted by Malte Meinshausen
glenpeters.bsky.social
Explain it to me like I am a fifth grader...

That was the goal in this article with @meinshausen.bsky.social: "We Are Not on Track: Greenhouse Gas Emissions Are Higher Than Ever!"

Did we succeed?
kids.frontiersin.org/articles/10....
Reposted by Malte Meinshausen
glenpeters.bsky.social
Representative Concentration Pathways (RCPs).

They are just one element of a bigger puzzle. Should scenarios start at concentration, or emissions, or socioeconomics? Should they start at temperature and go backwards?

All have advantages...

gmd.copernicus.org/articles/17/...

1/
Reposted by Malte Meinshausen
glenpeters.bsky.social
All this, and more, is discussed in a new review & perspective piece in Geoscientific Model Development (GMD), led by @meinshausen.bsky.social

Please read and continue the discussion: geoscientific-model-development.net

4/4
Reposted by Malte Meinshausen
climateanalytics.org
The effective amount of Petroleum Resource Rent Tax collected by the Australian government as a share of oil & gas revenues has collapsed, as we point out in our submission to the Treasury. #Auspol #Auspol2024

climateanalytics.org/publications...
meinshausen.bsky.social
Coal is the first one to exit, if we want to put ourselves on track to meet the long-term Paris agreement goals. By 2030 or 2035 at the latest. Other fossil fuels to follow swift.

Let's hope that COP28 will have clear wording in the end.

Full briefing here: www.climate-resource.com/tools/ndcs
meinshausen.bsky.social
The latest temperature assessments of the NDCs and LT-LEDS pledges by countries - and how they fair against the Paris Agreement temperature goals?

Surprise: We are still quite far off 1.5C.

Here an overview of all the main studies. See more at: climate-resource.com/tools/ndcs
meinshausen.bsky.social
Entering the 1.5C world, it's time for a fossil fuel exit.

Phase-in of renewables is key, but only replaces fossil fuel (emissions), if married with strong energy efficiency and dedicated coal, oil and gas phase-out policies.

Full briefing: climate-resource.com/tools/ndcs
Reposted by Malte Meinshausen
wpschill.bsky.social
1/ Halbzeit für die Ampel! Also, falls sie bis zum Ende durchhält. Wie steht es nach zwei Jahren 🚦 um die Energiewende? @aroth.bsky.social, @adelinegueret.bsky.social, @fsschmidt.bsky.social & ich haben aus diesem Anlass ein kleines Special zum Ampel-Monitor Energiewende des @diw.de veröffentlicht.
meinshausen.bsky.social
'Great success' of small modular reactors: Magnox produces weapons grade plutonium in North Korea. Other plans burn through cash.

Relaxing that one doesn't have to argue any more on grounds of risks, waste, nuclear proliferation, etc. Economis sort it out. reneweconomy.com.au/small-modula...
Small modular nuclear reactors: a history of failure
Dozens of ‘small modular reactor’ designs are being promoted, but precious few will reach construction stage and likelihood of SMRs being built in large numbers is negligible.
reneweconomy.com.au
Reposted by Malte Meinshausen
Reposted by Malte Meinshausen
ketanjoshi.co
“The situation is nothing short of horrific – where is humanity? Millions of civilians are being collectively punished in full view of the world, there can be no justification for using starvation as a weapon of war"

www.theguardian.com/world/live/2...
Israel-Hamas war live: Israel vows to ‘teach the UN a lesson’ as row over secretary general’s ...
Israel calls on António Guterres to resign after his speech and says it has denied a visa to a UN official
www.theguardian.com
meinshausen.bsky.social
How can people, who suffered so much, create so much suffering?
meinshausen.bsky.social
Ban on nuclear is rational:
1. We don't need it. There is no future role for baseload.
2. We don't want to waste money. Nuclear is crazy expensive.
3. We don't want the waste. Nuclear waste is unlike banana peels.
4. Nuclear proliferation
@simonahac.bsky.social

www.theage.com.au/politics/fed...