Hannah Daly @hannahdaly.ie · 29/09/2026Genuinely great to see solar, heat pump and retrofit grants targeting vulnerable homes. It's also good to see the boiler scrappage scheme come immediately rather than in January. I'm sure a lot of people retrofitting right now, and the companies, are relieved they will qualify. 0328
Reposted by Hannah DalyJennie C Stephens @jenniecstephens.bsky.social · 28/09/2026Our new article on his decades of corporate capture made US universities vulnerable to current attacks. 022
Reposted by Hannah DalyGlen Peters @glenpeters.bsky.social · 25/09/2026"Current [El Nino] forecasts suggest that the 2026 event could push global mean surface temperatures in 2027 to almost 1.8°C above pre-industrial levels" 😱 Good rundown of El Nino impacts via @zekehausfather.com www.nature.com/articles/d41... 14518
Reposted by Hannah DalyAdrian Hiel @adrianhiel.bsky.social · 24/09/2026As someone who spent 14,400 euro on a heat pump earlier this year with no grants I look at those 14,500 euro in grants with a lot of envy. I just hope the installation market doesn't stall now for 4 months as people wait for them to become available. 193
Hannah Daly @hannahdaly.ie · 24/09/2026Minister Darragh O'Brien has announced a €2000 oil boiler scrappage scheme for older boilers, on top of grants up to €12,500 for heat pumps. I spoke on Morning Ireland about the latest incentive to get Irish homes off heating oil. www.rte.ie/radio/radio1...rte.ieGovt to propose boiler scrappage schemeKieran McCarthy, Director of KMC Homes in Cork, and Hannah Daly, Professor of Sustainable Energy at University College Cork, discuss the decision by Energy minister Darragh O'Brien to bring a boiler s... 24218
Hannah Daly @hannahdaly.ie · 18/09/2026While all attention is on AI and its impact on our brains, energy grids and economy, and whether it will literally kill all of us, is any leader taking climate change seriously any more? AMOC collapse would be *absolutely devastating* and is only one of profound impacts climate change brings. 25114
Hannah Daly @hannahdaly.ie · 17/09/2026I wrote an essay, cautioning university students on the use of GenAI for coursework. I hope it's of use. zenodo.org/records/2281...zenodo.orgThe dangers of using AI for coursework: A warning to university students 43011
Reposted by Hannah DalyNicolas Hénin @nicolashenin.net · 17/09/2026Nice campaign by the Norwegian Consumer Council about the declining lifespan of products. Enjoy! 180140426449
Hannah Daly @hannahdaly.ie · 03/09/2026I wonder if the kind of large-scale grassroots pushback against data centres, the kind that has been tipping election results, will emerge in Ireland? 3326
Reposted by Hannah DalyKatharine Hayhoe @katharinehayhoe.com · 26/08/2026Glaciers in the Himalayas are rapidly retreating under climate change, leading to widespread formation and expansion of glacial lakes and increasing the risk of glacial lake outburst floods. To date, more than 388 GLOF events have been documented in the region 😰 Source ⬇️nature.comGlacial lakes and GLOFs in a warming Himalaya-Karakoram region: current understanding, challenges, and the way forward - npj Natural Hazardsnpj Natural Hazards - Glacial lakes and GLOFs in a warming Himalaya-Karakoram region: current understanding, challenges, and the way forward 26919509
Hannah Daly @hannahdaly.ie · 27/08/2026I'm just going to rob this €100 out of your wallet. Why are you complaining - it's only 0.1% of your annual income? 1223
Reposted by Hannah DalyRóisín Moriarty @roisinmoriarty.com · 18/08/2026This was such a great paper to work on, with a great team, so I was delighted when we got the news yesterday that is has been selected as standout open access Irish research paper for 2025 @ioppublishing.bsky.social As @colmduff.bsky.social makes clear in his article below, methane is methane. 174
Reposted by Hannah DalyPatrick Bresnihan @pbresnihan.bsky.social · 11/08/2026In the name of competitiveness and defence, the EU is going backwards on climate action. €800 billion has been committed to prepare for war by 2030, far outstripping anything that is being invested in climate resilience and a green transition. This is madness. www.irishtimes.com/opinion/2026...irishtimes.comOpinion: Europe needs to start treating the climate emergency as a threat to our national securityIdea that climate action is about individual responsibility is as ridiculous as suggesting everyone can equip themselves to fight in war 04020
Reposted by Hannah DalyPatrick Bresnihan @pbresnihan.bsky.social · 06/08/2026The Government commissioned a €100k report by KMPG not to inform policy but to 'provide the evidence base that supports the position that we should continue to further develop our data centre landscape post 2030.' That is reckless and negligent. www.thejournal.ie/data-centre-...thejournal.ieConcerns over supporting data centres ahead of transport or housing scrubbed from government reportSeveral aspects which questioned continued investment in the sector were later cut from the final version released to the public. 55325
Hannah Daly @hannahdaly.ie · 06/08/2026Hugely excited to welcome our first students to the new BSc Sustainability this September. In my column today, I set out my case for this new kind of interdisciplinary degree. www.irishtimes.com/environment/...irishtimes.comThe climate crisis needs conductors, not just virtuososThe answers to big global challenges can’t be found within single disciplines 34316
Hannah Daly @hannahdaly.ie · 07/07/2026The CSO has released data on metered electricity consumption for 2025. The extraordinary headline figures: - Electricity consumption from data centres grew by nearly 10% last year, and now accounts for 23% of Ireland's electricity demand. 7263182
Hannah Daly @hannahdaly.ie · 24/06/2026I've been at the International Energy Workshop in Cape Town this week. I'm avoiding the brutal European heat, but the concept of climate overshoot is top of my mind. I gave a keynote talk on how energy systems modelling can evolve to support countries in returning from overshoot. 1171
Hannah Daly @hannahdaly.ie · 18/06/2026🎓 Fully funded PhD scholarship! 🎓 Research the impact of AI-driven data centre expansion on the energy transition with me. The project will be co-supervised by one of the world's top experts in AI, Prof. Barry O'Sullivan, from UCC's School of Computer Science. 34328
Reposted by Hannah DalyFor Tech’s Sake @fortechssakepod.bsky.social · 15/06/2026Have you listened to our episode with @hannahdaly.ie? pod.fo/e/42e262 Hannah is Professor of Sustainable Energy at @ucc.ie and you can find more of her work at HannahDaly.ie.pod.foFor Tech’s Sake: Are data centres a drain? (with Prof Hannah Daly)In this episode, Elaine is joined by energy researcher Prof Hannah Daly to discuss the energy strain data centres represent for Ireland, the greenwashing that enables their proliferation in the fac... 173
Hannah Daly @hannahdaly.ie · 11/06/2026Reflections on the Joint Committee on AI and my new working paper that shows how data centres could consume 55% of Ireland's electricity by 2040 and cause gas demand to rise. hannahdaly.ie/2026-06-11-J...hannahdaly.ieReflections from the Joint Committee on Artificial IntelligenceThe energy cost of data centres in Ireland 13928
Reposted by Hannah DalyKetan Joshi @ketanjoshi.co · 11/06/2026A brand new piece for Crikey: digging into what happens now for Australia's data centre debate Anthropic, planning 20GW, would have to build 1.7x the amount of all renewable energy ever built in Australia to date, to meet the 100% mandate. www.crikey.com.au/2026/06/10/m... 513653
Reposted by Hannah DalyEoin Daly @eoinmauricedaly.bsky.social · 10/06/2026Deputy Malcolm Byrne is that sort of person who will say ‘oh you oppose data centre expansion but you have an IPHONE???’ and thinks it’s clever cc @hannahdaly.ie 44012
Reposted by Hannah DalyKetan Joshi @ketanjoshi.co · 09/06/2026Worth reading @hannahdaly.ie's full research here - it contains some really stunning numbers. The most important point is the 80% renewable mandate delayed by six years: meaning six years of massive gas use and emissions, breaching carbon budgets and spiking bills zenodo.org/records/2058...zenodo.orgData centre expansion in Ireland: the conflict between grid connection policy and national energy and climate targets 49156
Hannah Daly @hannahdaly.ie · 09/06/2026Today, I'll brief the Joint Committee on Artificial Intelligence on a new working paper which quantifies the potential energy and emissions from data centres into the future under the new Large Energy User Connection Policy, should 5.8 GW of new capacity (estimated through a market survey) emerge. 57537
Hannah Daly @hannahdaly.ie · 08/06/2026It is really heartening to see this kind of integrity. Carbon accounting should absolutely be not agreed by private, industry-led groups. 34514
Reposted by Hannah DalyDanny Cullenward @ghgpolicy.org · 08/06/2026I have resigned from the Greenhouse Gas Protocol's Independent Standards Board. The Protocol is openly violating its own rules and has effectively delegated forest carbon accounting standards to a secret, industry-led working group. ghgpolicy.org/s/2026-06-08... 23609275
Hannah Daly @hannahdaly.ie · 04/06/2026New column: Now is the ideal time to make fossil fuel phase-out the organising principle of Ireland's energy and economic strategy. My piece in today's @irishtimes.com: www.irishtimes.com/environment/... 114151
Reposted by Hannah DalyPhilip Boucher-Hayes @philipb-h.bsky.social · 02/06/2026TLDR: A country in Ireland’s geographical position needs to invest heavily in oceanic research to prepare for whatever is coming. This move by the USA is tearing out the smoke alarm so you can sleep through the fire. Listen: 👉 www.rte.ie/radio/radio1...rte.ieEp 27 - AMOCThe evidence for and against the Atlantic's overturning current reaching a tipping point this century. 13416
Reposted by Hannah DalyRóisín Moriarty @roisinmoriarty.com · 26/05/2026We have a couple of summer student vacancies at the moment If you are interested in historical GHG emissions and temperature impacts... ...check out our vacancies page www.ucc.ie/en/epmg/abou... SEFS Summer Student Job Specificationucc.ieAbout | University College CorkLearn about the Energy Policy and Modelling Group and our research at University College Cork 056
Hannah Daly @hannahdaly.ie · 25/05/2026This article is apparently serious when it celebrates a possible collapse in AMOC because it could mean less rain in Ireland. I read it twice to try to find the punchline; it’s not there. www.irishtimes.com/culture/2026...irishtimes.comCould Ireland end up with the climate of Newfoundland or Malmo?In a Word ... Climate 77316
Reposted by Hannah DalyRoderic O’Gorman TD @rodericogorman.bsky.social · 21/05/2026No shame. No accountability. Irish civilians detained after being seized in international waters are now being used as political props by Israel’s far-right Government. What we’re witnessing is performative cruelty - propaganda in advance of potential elections in Israel. 12610
Reposted by Hannah DalyFlavio Lehner @climateflavors.bsky.social · 21/05/2026If you're a reviewer or an editor for a scientific journal, I urge you to not hop on the "RCP8.5 is dead" train. There are now editors that reject RCP8.5 but are ok with 1pctCO2. 🤯 Both are what-if scenarios, useful to science. Don't let politics influence what we can research and publish! 1/3 18120
Reposted by Hannah DalyJoe DeCarolis @jfdecarolis.bsky.social · 21/05/2026🔌💡 New paper alert: Surging data center and cryptocurrency demand could spike regional electricity costs up to 57% and push U.S. power sector CO₂ emissions up 28% by 2030. iopscience.iop.org/article/10.1... A thread on what we found 🧵👇iopscience.iop.orgPower system costs and emissions from data center and cryptocurrency mining expansion in the United StatesPower system costs and emissions from data center and cryptocurrency mining expansion in the United States, Johnson, Jeremiah X., Wade, Cameron, Blackhurst, Michael, Decarolis, Joseph F, De Queiroz, Anderson R, Posen, I Daniel, Jaramillo, Paulina 11611
Reposted by Hannah DalyRóisín Moriarty @roisinmoriarty.com · 21/05/2026This morning Irish climate experts wrote to Minister O'Brien @deptcee.bsky.social to express deep concern that urgent #methane reduction risks being undermined if climate targets are set using a ‘temperature neutrality’ approach. 1/13irishtimes.comInternational scientists plead with Ireland not to adopt controversial greenhouse gas assessment methodScientists raise alarm over proposal to ease Ireland’s climate obligations 34725
Reposted by Hannah DalyCommunity Law & Mediation @clmirl.bsky.social · 07/05/2026www.irishtimes.com/environment/... “It is impossible to avoid the conclusion that the Government is attempting to dismantle the Climate Act...without actually amending it, to facilitate emissions-intensive projects that are likely to contribute substantially to the State’s emissions profile.”irishtimes.comDismantling of climate law will reduce scrutiny of large infrastructure projectsIf a State body is seriously proposing to impact on the environment, it should have overriding public interest stitched in from the outset 12512
Hannah Daly @hannahdaly.ie · 06/05/2026Contrast the last two energy stories I’ve been asked to comment on in Irish media: 1. A proposal to lift the nuclear energy ban is to be debated in the Dáil 2. 76 fully electric double-decker buses have reportedly been sitting idle in Dublin for up to 2.5 years 39545
Reposted by Hannah DalyKen Caldeira @kencaldeira.com · 29/04/2026This @carbonbrief.org explainer on the Atlantic Meridional Overturning Circulation (AMOC) is very good. Useful for experts and novices alike. Kudos to @ceciliakeating.carbonbrief.org, @tomoprater.carbonbrief.org and @kerryanncleaver.bsky.social. interactive.carbonbrief.org/amoc-explain...interactive.carbonbrief.orgAMOC: Is global warming tipping key Atlantic ocean currents towards ‘collapse’?The AMOC is under threat from human-caused climate change, as warming seas, melting ice and increased rainfall upset the temperature and salt balance of the North Atlantic. 710957
Hannah Daly @hannahdaly.ie · 27/04/2026Good to hear that the Irish government is looking into additional payments for heat pumps and efficient cars, rather than just addressing the energy crisis with cuts to fossil fuel prices. However, supporting HVO ("renewable diesel") would be a really bad idea. www.rte.ie/news/ireland...rte.ieGovt always looking to reduce energy costs, says ministerMinister for Energy and Climate Darragh O'Brien has said the Government is always looking to do more to make homes more energy efficient and to reduce costs for people. 35313
Hannah Daly @hannahdaly.ie · 27/04/2026My local biodiversity group is showing Ireland's first screening of "People's Emergency Briefing On Climate and Nature Breakdown". It's in lovely Tracton, between Carrigaline and Kinsale, in Cork. 1289
Hannah Daly @hannahdaly.ie · 23/04/2026No subtle climate-delay tactics on display here from Deputy Danny Healy-Rae during Ireland's Earth Day parliamentary debate - just classic, old-school climate denial, "we can't control the weather". www.oireachtas.ie/en/debates/d... 155413
Reposted by Hannah DalyMatthew Hayek @matthewhayek.bsky.social · 23/04/2026Meat and dairy producers haven't been serious about climate change. Yet high-profile climate event planners regularly invite them to speak. Chances are extraordinarily high that, while they will posture as responsible, they will exaggerate & lie. www.newscientist.com/article/2523...newscientist.com98 per cent of meat and dairy sustainability pledges are greenwashingThe food industry has made big promises to reduce emissions and become more sustainable, but a review concludes that many of the pledges are not backed up by evidence 49543
Hannah Daly @hannahdaly.ie · 23/04/2026I spoke with The Guardian about Ireland's fuel blockades and the silver lining of this whole mess for the energy transition. 02910
Reposted by Hannah Dalytimsearchinger.bsky.social @timsearchinger.bsky.social · 20/04/2026Many govts hope capturing carbon from power plants burning wood will cause "negative emissions." New Nature Sust. paper today finds this likely increases emissions for decades, generates no negative emissions within 150 years, and increase electricity costs ~3.5-fold. www.nature.com/articles/s41...nature.comDecades of increased emissions from forest-fuelled BECCS - Nature SustainabilityGovernments are considering subsidies for bioenergy with carbon capture and storage fuelled by wood from existing forests. However, a transparent model estimates that this will probably increase emiss... 414370
Reposted by Hannah DalyColm Duffy @colmduff.bsky.social · 20/04/2026We published a reply to comment on our recent Temperature Neutrality Paper. The (very) short version: If everyone does it, the very assumptions that underpin it are invalidated. #ClimateChange #ClimateMitigation #Climatepolicy #TemperatureNeutrality www.linkedin.com/posts/colm-d...linkedin.comNational temperature neutrality, agricultural methane and climate policy: reinforcing inequality in the global food system | Colm Duffy📣 This morning we have a 🗞️ new paper (reply to comment) out in Environmental Research Letters: It highlights a simple but important problem with “temperature neutrality” (TN) as a national climate t... 034
Hannah Daly @hannahdaly.ie · 16/04/2026In today's Irish Times, I unpack the many layers of irony associated with the fuel protests over the past week. The government's €750 million financial package to cut fuel prices adds to the ~€4.8 billion in public finance lost each year to fossil fuel subsidies. www.irishtimes.com/opinion/2026... 34714
Reposted by Hannah DalyBarry McMullin @autofac.bsky.social · 15/04/2026Where is the IE €750M "fuel support" package actually going? This is where... [Plenty of blame to go around - but put it on the *right* bad actors!] 194
Reposted by Hannah DalyCllr Oisín O'Connor @oisinoconnordublin.bsky.social · 13/04/2026The long-term solution to the fossil fuel crisis is *not* more fossil fuels. 181430215
Reposted by Hannah DalyColman O'Sullivan @colmanos.bsky.social · 12/04/20261/ A leader of the #fuelprotest told me last night he doesn't believe in climate change, said the climate has always changed and it was hotter 5 million years ago than it is now. I asked how long farmers have been around. Millions of years, he said... 67628
Reposted by Hannah DalyPhilip Boucher-Hayes @philipb-h.bsky.social · 11/04/2026History is repeating itself. A chance in this energy crisis to copy the choices made in 1970s crises by the countries now almost fossil fuel free. Full documentary series free to stream here: youtu.be/F8vI5_gN90g?... 1248