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Hannah Daly

@hannahdaly.ie

16K followers 1.9K following 1.2K posts

Professor in Sustainable Energy, UCC 🇮🇪 I write a monthly column for the Irish Times: https://www.irishtimes.com/tags/hannah-daly/ Born 351ppm, daughters born 408 & 410, now >420ppm 🚨 ‼️ Former @IEA and @UCL

www.irishtimes.com

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Hannah Daly @hannahdaly.ie · Aug 12

Our new journal paper has hit the front pages and got wide coverage on the airwaves this morning.

The paper critically assesses “temperature neutrality” as a basis for Ireland’s long-term climate target. We find it amounts to backsliding on climate ambition and locks in food system unfairness.

Hannah Daly @hannahdaly.ie · 1h

This is a very worth use of AI in my opinion!

Reposted by Hannah Daly

Auke Hoekstra @aukehoekstra.bsky.social · 3h

Stop the EU's ban on common sense "meaty" words by adding your name.
These words confuse nobody and the ban only helps the lobby against meat replacements.
weplanet.yourmovement.org/p/noconfusio...

Stop the EU’s Ban on “Meaty” Words for Plant-Based Foods

weplanet.yourmovement.org

Reposted by Hannah Daly

John Gibbons 🇵🇸 🇺🇦 🇪🇺 @thinkorswim.bsky.social · 5h

What an *interesting* way of framing the ongoing collapse of Ireland’s marine ecosystems, largely driven by industrial overfishing.

www.rte.ie/news/2025/10...

Fishing industry facing 'economic Armageddon'

The Irish fishing industry has warned it is bracing for catastrophic fishing quotas next year that "could collapse the Irish fishing sector and devastate major fishing communities".

Hannah Daly @hannahdaly.ie · 7h

After a huge storm last January that left people without power (some for weeks) there was a lot of confusion/debate about the safety and legality of these automatic systems, but I think it's resolved now.

Hannah Daly @hannahdaly.ie · 17h

(this is something I also need..)

Hannah Daly @hannahdaly.ie · 17h

You need a changeover switch, some electricians will install them, and an appropriate inverter/battery setup.

Reposted by Hannah Daly

John Gibbons 🇵🇸 🇺🇦 🇪🇺 @thinkorswim.bsky.social · 19h

Amid the constant anti-renewables sentiment so common across our media, this letter today is a blessed relief.

Hannah Daly @hannahdaly.ie · 20h

So my to-do list is still a mile long, and sorry if I didn't get back to your email yet....

Hannah Daly @hannahdaly.ie · 20h

And on top of that, I'm doing some more work on data centres - and also responding to loads of international media interest in my work so far.

Hannah Daly @hannahdaly.ie · 20h

I also went to my old workplace at the UCL Energy Institute to examine a PhD, which was a great experience: www.linkedin.com/posts/will-m...

Hannah Daly @hannahdaly.ie · 20h

And teaching my favourite class, Sustainable Energy. (if things didn't keep changing so quickly I'd be able to reuse far more slides from year to year!)

Hannah Daly @hannahdaly.ie · 20h

I also have been writing my regular column for The Irish Times:
hannahdaly.ie/tags/#column

Hannah Daly @hannahdaly.ie · 20h

Fourthly, I gave an invited talk to the SEAI board in September. It was entitled "Why the energy transition is hard, and why it matters more than ever"
hannahdaly.ie/2025-09-08-S...

Hannah Daly @hannahdaly.ie · 20h

Thirdly, this summarises my participation in the Overshoot Conference last week at IIASA:
hannahdaly.ie/2025-10-01-o...

Hannah Daly @hannahdaly.ie · 20h

Secondly, this seems like a good time to announce that UCC is launching a new interdisciplinary BSc in Sustainability, and I have the enormous honour to take the role of Programme Director. I've been working with amazing people from across the university to get this off the ground. Stay tuned!

Hannah Daly @hannahdaly.ie · 20h

Firstly, this summarises my engagement on carbon budgets, temperature neutrality and "no additional warming".

hannahdaly.ie/2025-10-07-e...

Hannah Daly @hannahdaly.ie · 20h

I've had a few very busy weeks and spent a bit of time updating my blog summarising what I've been up to - intended more as an apology to my colleagues and collaborators (your thing is next! I promise!) than a humblebrag.

Hannah Daly @hannahdaly.ie · 1d

Take a meeting in January 😛

Reposted by Hannah Daly

Dr. Aaron Thierry @thierryaaron.bsky.social · 1d

Has anyone else been dealing with some serious headline whiplash recently?

Even for those of us who follow #climate and #energy matters closely, it can be hard to know what the hell is going on!

So here's a thread to help climate communicators get a grip on how to deal with this 🧵

Reposted by Hannah Daly

Eoghan Daltun 🌍 @irishrainforest.bsky.social · 1d

“They dragged Greta by her hair before our eyes, beat her, and forced her to kiss the Israeli flag. They did everything imaginable to her, as a warning to others.”

Bastards.
www.theguardian.com/world/2025/o...

Israel accused of detaining Greta Thunberg in infested cell and making her hold flags

Activist tells Swedish officials she has been subjected to harsh treatment, including insufficient food and water

www.theguardian.com

Hannah Daly @hannahdaly.ie · 2d

That is a rational response to the lower EV running costs - which is facilitated through Norway's proper public charging network, which Ireland still lacks.

Hannah Daly @hannahdaly.ie · 2d

And in our experience, EVs are being purchased in wealthy "leafy suburbs" where you'd expect mileage is lower, and/or as a "second car" runaround. Using data from used EV sales, annual mileage of EVs has been lower than for comparable ICEs.

Hannah Daly @hannahdaly.ie · 2d

This illustrates nicely the lag between sales trends and emissions - as the stock of ICEs is slowly turning over.

Hannah Daly @hannahdaly.ie · 2d

Yes, when you see that the level of CDR required to come back from overshoot would require stable international cooperation in the form of a global carbon price, it's very difficult to see how that political change comes about. Some CliFi books like Ministry for the Future try to imagine it.

Hannah Daly @hannahdaly.ie · 2d

My first response to the poll basically reflected this, but the second time they ran it, they asked for "return to 1.5C before 2500" scenarios. Because as we all learned, the IPCC definition of overshoot implies a return.