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Paul Griffiths

@paultgriffiths.github.io
666 followers 543 following 541 posts

Lecturer in atmospheric chemistry at the University of Bristol (🧪).

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Paul Griffiths @paultgriffiths.github.io · 10/09/2026
Congratulations 🥳 @zhonghuazheng.bsky.social on being named in the MIT list of Innovators Under 35- www.technologyreview.com/innovator/zh...
technologyreview.com
Zhonghua Zheng
He developed climate models that work better for cities.
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Paul Griffiths @paultgriffiths.github.io · 08/09/2026
My annual summer progress ends today. A very fine August but 暑いですね。。。
Pictures of a man's progress around Japan - trip to Hokkaido to eat melon and marvel at the landscape, NIES field work trip to the Minami alps, Suica's Penguin merch, and various Tokyo spots.
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Paul Griffiths @paultgriffiths.github.io · 13/08/2026
Bravo!! Amazing project
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SETI Institute @setiinstitute.bsky.social · 10/08/2026
A new study led by @swri.org provides evidence that liquid nitrogen is rising to Pluto’s surface through cracks in the northern edge of the Sputnik Planitia, part of the massive heart-shaped glacier on the dwarf planet’s surface. 🧪 🔭
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Paul Griffiths @paultgriffiths.github.io · 09/08/2026
Great trip to Osaka to visit the Koshien. This double play one of many great moments - youtu.be/X0cJPR-3-cU
youtu.be
8回 白樺学園の2年生二遊間が魅せた!金井&後藤が超絶ダブルプレー完成|白樺学園―東日大昌平 8回表【第108回全国高校野球選手権大会】
YouTube video by バーチャル高校野球公式チャンネル
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Financial Times @financialtimes.com · 24/07/2026
Met Office chief Penny Endersby: ‘There is not going to be a usual summer’ ft.trib.al/deFVitX
ft.trib.al
Met Office chief Penny Endersby: ‘There is not going to be a usual summer’
The head of the UK’s national weather service on this year’s multiple heatwaves, the net zero backlash and why geoengineering is not a panacea
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Retraction Watch @retractionwatch.com · 23/07/2026
A couple paid more than $800,000 for a gene-editing therapy for their daughter. She died, and it wasn’t made public. An exclusive from us and @science.org.
science.org
Exclusive: Death of girl in Chinese gene-editing trial was never made public
Parents want accountability after study went disastrously wrong, Science and Retraction Watch investigation reveals
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Dr Charlie Williams @charliejrwill.bsky.social · 13/05/2026
Paper alert! V pleased to announce my latest paper "The relative role of direct orbital forcing versus CO2 & ice feedbacks on Quaternary climate", in Nature Communications - doi.org/10.1038/s414..., with @natalieslord.bsky.social, @climatesamwell.bsky.social, @thefosterlab.bsky.social + many others!
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Paul Griffiths @paultgriffiths.github.io · 29/05/2026
This is such a clear visualization of where we are now. From a recent Copernicus report climate.copernicus.eu/5-charts-dis...
Distribution of daily global surface air temperature anomalies (°C) relative to 1991–2020 for each year from 1940 to 2025. Selected important climate events have been annotated. Data source: ERA5. Credit: C3S/ECMWF. Visualisation inspired by the work of Erwan Rivault (BBC).
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Paul Griffiths @paultgriffiths.github.io · 11/05/2026
This year's Global Tipping Points (global-tipping-points.org) conference will be from 12–15th October in Kuala Lumpur, hosted by #SunwayUniversity. Abstract submission and workshop proposal are available via www.sunwayplanetaryhealth.com.my/events/gtp-2...
sunwayplanetaryhealth.com.my
Global Tipping Points Conference 2026
Global Tipping Points Conference 2026, 12–15 October in Kuala Lumpur—science, finance, culture and policy for positive tipping points, hosted by Sunway Centre for Planetary Health.
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Paul Griffiths @paultgriffiths.github.io · 03/04/2026
Kyushu U today to give a talk at the Center for Oceanic and Atmospheric Research (COAR), RIAM. Very happily my visit coincides with peak Sakura! Here’s my gracious host Prof Toshi Takemura showing all the beauty.
Prof Toshi Takenura standing in front of the Sakura and the people doing hanami at the Kasuga campus
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Paul Griffiths @paultgriffiths.github.io · 24/03/2026
A nice trip to MRI in Tsukuba to attend Stephanie Fiedler’s seminar (and to talk with Stephanie and her host Naga Oshima)
Dr Naga Oshima of Japan Meteorological Research Institute, Tsukuba introduces Prof Dr Stephanie Fiedler, Heidelberg University, at the start of her seminar.
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Al Haddrell @ukhadds.bsky.social · 21/03/2026
Aerosols are very small, have a high surface to volume ratio and can readily reach super saturation. This combination makes them a unique environment for chemical reactions. We had a paper published in JACS that looked into the rate of chemical reactions within and on aerosols.
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Paul Griffiths @paultgriffiths.github.io · 11/03/2026
Happy to be at #CMIP26 with my Bristol colleagues. Always amazing to come to the Kokukaisaikan in Kyoto.
Colleagues from University of Bristol "Bristol Research Initiative for the Dynamic Global Environment (BRIDGE)" standing in front of the welcome banner of the CMIP26 workshop being held in Kyoto.
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Ed Hawkins @edhawkins.org · 26/02/2026
The UK atmospheric research aircraft (the FAAM) will cease operations in one month's time due to a research 'pivot' by UKRI... www.ukri.org/news/nerc-pi...
ukri.org
NERC pivots investment in atmospheric research into new technologies
NERC is transitioning its funding of atmospheric science infrastructure to exploit more flexible, scalable and sustainable technologies.
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Thomas Bauska @tinyicybubbles.bsky.social · 09/02/2026
👏 Heroic effort to extract a H₂ record from ice cores 👏 The samples had to measured in the field immediately after drilling (i.e. fresh out the oven 🥮) to prevent the tiny H₂ molecules from leaking out. www.nature.com/articles/s41...
nature.com
Atmospheric H2 variability over the past 1,100 years - Nature
Analysis of the atmospheric H2 variability over the past millennium suggests that the sensitivity of H2 to climate change should be considered in estimates of the radiative consequences of rising...
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Paul Griffiths @paultgriffiths.github.io · 09/01/2026
Having a great day at JAMSTEC, visiting the Earth Surface System division. Their lobby has former versions of the Earth Simulator computer (currently at version 4) and, nerd that I am, here is a photo. JAMSTEC also lead work on LLM for climate adaption planning - essopenarchive.org/users/555101...
an edited image showing three variants of the rack mounted HPC machines used for the JAMSTEC Earth Simulator.
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Paul Griffiths @paultgriffiths.github.io · 31/12/2025
Fascinating new paper in PNAS on tropical cyclones from researchers in 🇹🇼 based on "a typhoon series for 1368–1911 reconstructed from Chinese historical documents digitized in the REACHES database". The use of records in archival texts is new to me and, again, 🤯. www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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EGU Atmospheric Sciences Division @egu-as.bsky.social · 05/12/2025
Read the new blog post by @paultgriffiths.github.io and @soa-mazing.bsky.social on using machine learning in tropospheric ozone science. #egublog #machinelearning #atmosphericscience
blogs.egu.eu
Harnessing Machine Learning to Advance Tropospheric Ozone Science
Machine learning (ML) and Artificial Intelligence (AI) offer powerful tools to address long-standing scientific challenges. At the molecular scale, we’ve seen projects like AlphaFold discover unknown ...
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Paul Griffiths @paultgriffiths.github.io · 30/11/2025
Bit late with this one, and paywalled. Fascinating to see AI tool concluding >20% of peer-reviews for ICLR are wholly AI-generated. Wait to see if there was a strong difference between the conclusions of the reviews, although it does flag some egregiously bad cases. www.nature.com/articles/d41...
nature.com
Major AI conference flooded with peer reviews written fully by AI
Controversy has erupted after 21% of manuscript reviews for an international AI conference were found to be generated by artificial intelligence.
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The Climate Brink @theclimatebrink.skystack.xyz · 03/11/2025
Super pollutants are trendy, but we should be careful how we use them • Substituting short lived climate pollutants like methane for CO2 as carbon offsets risks breaking the math of net zero
theclimatebrink.com
Super pollutants are trendy, but we should be careful how we use them
Substituting short lived climate pollutants like methane for CO2 as carbon offsets risks breaking the math of net zero
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Paul Griffiths @paultgriffiths.github.io · 20/11/2025
🚨🧪The ML4O3 Perspective on 'Applications of Machine Learning and Artificial Intelligence in Tropospheric Ozone Research' is published (as a Highlight) today in @egu-as.bsky.social GMD. Great team effort from our many co-authors. doi.org/10.5194/gmd-...
A Sankey type diagram showing connections between the Challenges, Future Directions and Tangible Next Steps in ML/AI research in for tropospheric ozone.
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Paul Griffiths @paultgriffiths.github.io · 20/11/2025
🛰🧪GOSAT-GW (aka Ibuki GW) in the news! Nice story from the Yomiuri Shinbun on the plans for data. Director the Earth System Division at Japan National Institute for Environmental Science, and all-round good guy, Hiroshi Tanimoto presents at COP30. www.yomiuri.co.jp/science/2025...
yomiuri.co.jp
人工衛星「いぶきGW」の温室効果ガス観測データを無償提供へ…COP30で環境省など発表
【読売新聞】 【ベレン=鬼頭朋子】環境省と国立環境研究所(国環研)は17日、ブラジルで開催中の国連気候変動枠組み条約第30回締約国会議(COP30)で、日本の人工衛星「いぶきGW」が捉えた温室効果ガスの観測データを企業などへ無償提供
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Paul Griffiths @paultgriffiths.github.io · 19/11/2025
Congratulations to my former colleague, Jayaprakash Murulitharan, on the award of his PhD. Free Malaysia Today wrote a nice story on his journey. www.freemalaysiatoday.com/category/lei...
freemalaysiatoday.com
From estate boy to first M’sian atmospheric scientist from Cambridge
Starting his school life in an estate in Sungai Siput, Jayaprakash Murulitharan earned his doctorate from the university last month.
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Paul Griffiths @paultgriffiths.github.io · 18/11/2025
My good friend Prof Stuart Maudsley interviewed in @hellobio.bsky.social on the intersection of work and travel (for work). hellobio.com/blog/the-tra...
hellobio.com
The Travelling Scientist Problem: Lessons from a Life in Motion
For life scientists today, there are many possible career paths. While some prefer to stay at one institution, others pursue more globally diverse journeys. In this guest blog, Professor Stuart Maudsl...
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Paul Griffiths @paultgriffiths.github.io · 27/10/2025
Glass fragments in firn cores. Fascinating read and also 🤯 "Analysis of glass shards in the firn core from Antarctic Vostok station" by Ro et al., doi.org/10.1038/s432...
doi.org
Origin of the 1458/59 CE volcanic eruption revealed through analysis of glass shards in the firn core from Antarctic Vostok station - Communications Earth & Environment
The 1458/59 CE cryptotephra in the Antarctic Vostok Station firn core shows a bimodal distribution of dacite and rhyolite, sourced from the Kuwae and potentially an unrecorded southern high-latitude e...
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Academic Aunties @academicaunties.com · 18/09/2025
NEW EPISODE! @tungohan.bsky.social and Carrianne Leung talk about the energy we bring into the classroom, with students who are coping with realities of fascism, genocide, climate catastrophe, and the uncertainties of AI. Listen on your favourite podcast app: academicaunties.captivate.fm
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Paul Griffiths @paultgriffiths.github.io · 16/09/2025
It's 40 years since Farman, Gardiner and Shanklin's paper analysing springtime ozone depletion over Halley Bay - www.nature.com/articles/d41.... On World Ozone Day 2025, the IO3C reminds us that this is a story of the Earth system's capacity to surprise. www.io3c.org/public-state...
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International Ozone Commission @io3c.bsky.social · 16/09/2025
Happy World Ozone day !! youtu.be/Se5shgSACyo?...
youtu.be
World Ozone Day 2025 Message by UNEP Executive Director Inger Andersen (EN)
YouTube video by Ozone Secretariat
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UN Environment Programme @unep.org · 15/09/2025
By phasing out nearly all ozone-depleting substances, the Montreal Protocol is expected to help prevent up to 1°C of global warming by the end of the century. September 16 is #WorldOzoneDay: ozone.unep.org/ozone-day/fr... @unepozone.bsky.social
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CICERO Center for International Climate Research @cicero.oslo.no · 12/09/2025
"I don't think it was fully realized how much pollution removal would affect the regional climate" says CICERO researcher @bjornsamset.bsky.social Bjørn Samset in a recent story in @newscientist.com www.newscientist.com/article/2494...
newscientist.com
Is Earth’s climate in a state of 'termination shock'?
Cleaning up air pollution has saved millions of lives, but it has also given us an inadvertent taste of a nightmare climate scenario. The race is on to understand how bad it could be – and how to swer...
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Naomi Saphra @nsaphra.bsky.social · 26/04/2025
I wrote something up for AI people who want to get into bluesky and either couldn't assemble an exciting feed or gave up doomscrolling when their Following feed switched to talking politics 24/7.
nsaphra.net
The AI Researcher's Guide to a Non-Boring Bluesky Feed | Naomi Saphra
How to migrate to bsky without a boring feed.
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Robinson College, Cambridge @robinsoncollege.bsky.social · 02/09/2025
Who was the first king of England? 👑 Robinson Fellow, Professor David Woodman, thinks more people should know that Æthelstan created England in 927AD – should his story be on the school curriculum? David makes the case in his groundbreaking new biography 👇 shorturl.at/t07ej
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Quakers in Britain @quaker.org.uk · 06/08/2025
On the 80th anniversary of the bombing of Hiroshima, our Head of Witness and Worship Oliver Robertson traces the history of opposition to nuclear weapons, and how Quakers continue that tradition today. Our faith calls us to work for a peaceful world, free of nuclear weapons 🕊️☮️
quaker.org.uk
Why we must build a world free from nuclear weapons
On the 80th anniversary of the bombing of Hiroshima, Oliver Robertson traces the history of opposition to nuclear weapons, and how Quakers continue that tradition today.
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Quakers in Britain Peace Team @peace-campaigns.quaker.org.uk · 06/08/2025
On Hiroshima Day, let us draw strength from the tireless campaigning of the last Japanese survivors. Tadayoshi Ogawa: 'We live on something akin to a spaceship...we can fight over borders, over resources, and the spaceship and the life on it will suffer.' www.quaker.org.uk/news-and-eve...
quaker.org.uk
Quakers host two survivors of atomic bombing of Japan in 1945
Nagasaki must be the last city in the world to ever experience an atomic bomb, two survivors of the bombings of Japan by the USA told a gathering in Friends House, London, last weekend.
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Paul Griffiths @paultgriffiths.github.io · 31/07/2025
🧪🌳☁️ Short-lived climate forcers affect climate change, air quality, ecosystem health & agriculture productivity. Our new ACP (highlight) paper reviews the research in this area enabled by the CMIP6 AerChemMIP project. Led by @ljwilcox.bsky.social, Bob Allen & me acp.copernicus.org/articles/25/...
acp.copernicus.org
Opinion: The role of AerChemMIP in advancing climate and air quality research
Abstract. The Aerosol Chemistry Model Intercomparison Project (AerChemMIP) was endorsed by the Coupled Model Intercomparison Project 6 (CMIP6) and was designed to quantify the climate and air quality ...
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Cabot Institute for the Environment @cabot-institute.bsky.social · 23/07/2025
Come and join us for our prestigious Annual Lecture and Research Showcase on 8 October where we will be rethinking food and nutrition for the planet. We've got a fantastic panel and keynote lined up and interactive research exhibits to explore. Get your ticket! www.tickettailor.com/events/cabot...
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Paul Griffiths @paultgriffiths.github.io · 17/07/2025
From the back of the room - a great turnout for the UKCA science meeting. Heading towards our community town hall.
A photo of a lecture theatre at the University of Reading Dept of Meteorology showing a packed, stuffy room full of scientists and laptops. The screen at the front shows a talk from Hanish Gordon of CMU
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Paul Griffiths @paultgriffiths.github.io · 14/07/2025
Very glad to have Bjorn and Laura’s leadership on this project! And they have written an Explainer - theconversation.com/cleaner-air-...
theconversation.com
Cleaner air in east Asia may have driven recent acceleration in global warming, our new study indicates
A new study shows how polluted air could have been masking the full effects of global warming.
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Paul Griffiths @paultgriffiths.github.io · 29/06/2025
Spending last autumn at Japan's National Centre for Environmental Sciences showed me the immense effort behind GOSAT-GW, a new Earth observation satellite for greenhouse gases CO2 and CH4. Incredible work by JAXA and NIES. JAXA’s live-stream of its (so far-🤞) launch! www.youtube.com/watch?v=MZop...
youtube.com
温室効果ガス・水循環観測技術衛星(GOSAT-GW)/H-IIAロケット50号機打上げライブ中継
YouTube video by JAXA | 宇宙航空研究開発機構
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Paul Griffiths @paultgriffiths.github.io · 27/06/2025
From the back of the room - this was a fantastic day. Thanks. Particularly enjoyed the overview of lab education from @mkseery.bsky.social
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Paul Griffiths @paultgriffiths.github.io · 12/06/2025
Alas IWGGMS is over but it’s been a great workshop. Can’t wait for the next trip to Shikoku!
All the fun of the IWGGMS fair. A sunset over the inland sea; hordes of scientists running up stairs for free beers; Takamatsu’s very friendly station which has a smiley face; a look at Thursday’s delicious obento lunch (provided by the workshop!); a photo of the opening session, and a scene from the initiation of an instrument scientist in to the python way of data analysis in Pandas when the spreadsheet is in Unicode 🧐
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Paul Griffiths @paultgriffiths.github.io · 08/06/2025
Nice trip from Hiroshima to Takamatsu for IWGGMS. TIL that the cat that rides with Kumanaku the JR mascot is called Tabinyan.
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Ankit Bhandekar @ankitbhandekar.com · 28/02/2025
Just published in @uk.theconversation.com w/ @ljwilcox.bsky.social! Our article explains why Delhi can't break free from its Air Pollution Crisis and explores how meteorology is just as important as emissions in the fight for cleaner air! Read more: theconversation.com/delhi-how-we...
theconversation.com
Delhi: how weather patterns and faraway mountains made this the world’s most polluted megacity
Don’t just blame the city’s cars, factories and building sites. Mountains and weather patterns make it particularly hard for pollution to escape.
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Paul Griffiths @paultgriffiths.github.io · 27/05/2025
Please consider submitting an abstract to the session on 'Understanding reactive gases, aerosols, and land use for air quality and climate change' convened by Fiona O'Connor, @dwatsonparris.bsky.social, Stephanie Fiedler, @flossie-brown.bsky.social and me! Deadline August 13th.
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Rage Against the Miocene @organiccarbon.bsky.social · 18/05/2025
Stunning www.discoverwildlife.com/animal-facts...
discoverwildlife.com
Deep-sea scientists make "incredible discovery" on 35-day expedition in South Atlantic | Discover Wildlife
With the help of their remotely operated vehicle, the team found magical coral gardens, rare hydrothermal vents and mysterious creatures.
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Paul Griffiths @paultgriffiths.github.io · 16/05/2025
Excited to join the Quarterly Journal of the Royal Meteorological Society as an Associate Editor. Looking forward to supporting groundbreaking research in atmospheric chemistry and climate science, and contributing to our understanding of a changing planet. 🌍☁️🧪
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Amir H. Souri @asouri.bsky.social · 15/05/2025
We're pleased to announce the launch of our Ozonerates website (www.ozonerates.space). The platform is now live and fully equipped with an interactive map browser and data links, allowing users to explore satellite-constrained products such as PO3, sensitivity maps, NO2 and HCHO mixing ratios.
ozonerates.space
Explore Ozonerates From Space: : Get Informed About PO3 Products Determined from Space
We have established a robust relationship between ozone production rates and several geophysical parameters obtained from several intensive atmospheric composition campaigns. We have shown that satell...
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Paul Griffiths @paultgriffiths.github.io · 15/05/2025
Getting #UKESM evaluation going at the @terrafirmaclimate.bsky.social General Assembly in Exeter hosted by the @metoffice.bsky.social. Composition avengers assemble!
UKESM scientists sitting in the sun to discuss how to evaluate the CMIP7 and, more importantly, which one of them will do it
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