IanPMatthews.bsky.social
banner
ianpmatthews.bsky.social
IanPMatthews.bsky.social
@ianpmatthews.bsky.social
I like mud and abrupt climate change, I'm a Geographer. Strange sediments lying in ponds distributing proxies is no basis for understanding climate change. Significant findings derive from formal testing of ideas, not from some farcical aquatic ceremony.
It has been 20 years since we published this paper. It has been cited at least 278 times since then.
September 18, 2025 at 1:18 PM
Reposted by IanPMatthews.bsky.social
PhD Studentship alert!
I'm looking for a motivated student to work here in Vienna @vdsee-univie.bsky.social on my ERC grant "DISPERSE". It's a fulltime scholarship (working in 14C and #archsci in Palaeolithic archaeology in Eurasia.
Details in the link below!
jobs.univie.ac.at/job/Universi...
University assistant predoctoral 1
University assistant predoctoral 1
jobs.univie.ac.at
September 15, 2025 at 3:00 PM
We've just published a paper on human occupation of the NW European margin and the importance of local climate reconstructions during the Lateglacial period. The paper represents a lot of work by myself and my coauthors over many years, we're all happy to see it published at last rdcu.be/eusdJ
Summer warmth between 15,500 and 15,000 years ago enabled human repopulation of the northwest European margin
Nature Ecology & Evolution - The authors use the latest radiocarbon calibration curve and new local palaeoclimatic and palaeoenvironmental records from Britain to show that humans repopulated...
rdcu.be
July 3, 2025 at 8:03 AM
Reposted by IanPMatthews.bsky.social
Really striking new study from van Westen and Baatsen and a class visualisation tool to go with it. This study looks at a future where the AMOC has collapsed. Temperatures hitting -22ºC in Dublin in the winter is pretty stark. Hearing these numbers can be shocking and worrying.

amocscenarios.org
AMOC Collapse Visualisation Map
The interactive map that shows you the effects worldwide of climate change scenarios and the AMOC current collapsing
amocscenarios.org
June 12, 2025 at 8:16 AM
Reposted by IanPMatthews.bsky.social
New paper klaxon: pre print now available OA: muse.jhu.edu/pub/423/arti...

Thanks to everyone at @ria.ie for their work on this, and most importantly to Chantal for collaboration on the paper.

A short 🧵 on what we argue...

@ucdarchaeology.bsky.social
@ucddublin.bsky.social
@eaapam.bsky.social
May 21, 2025 at 12:54 PM
Scotland!
April 3, 2025 at 7:44 AM
RHULs MSc in Quaternary Science began in 1992, but morphed into the fully realised Masters in 1995, thirty years ago. I am an alumnus of that course, alongside many colleagues and friends from around the world. When applying in 2001 the website was basic...
March 11, 2025 at 10:31 AM
Reposted by IanPMatthews.bsky.social
Project Curator: Registration of Palaeolithic-Mesolithic Collections
The British Museum - Britain, Europe & Prehistory #skystorians www.jobs.ac.uk/job/DLS725/p...
Project Curator: Registration of Palaeolithic-Mesolithic Collections at The British Museum
An opportunity for an academic position as a Project Curator: Registration of Palaeolithic-Mesolithic Collections is available, as advertised on jobs.ac.uk. Apply now and explore other academic job op...
www.jobs.ac.uk
February 8, 2025 at 7:22 AM
Reposted by IanPMatthews.bsky.social
February 7, 1784, after 8 months of activity the Laki-eruptions ends. This series of fissures erupting lava fountains up to 800 meters high was the strongest eruption in #Iceland's history and largest effusive eruption on land in the last 1.000 years🌋
tinyurl.com/3cv9jwrv
February 7, 2025 at 7:09 PM
Reposted by IanPMatthews.bsky.social
We've reached 1.5°C global warming.
With current policies, we're heading for a catastrophic 2.7°C warming.
A new review paper in Science shows: this would change the Arctic 'beyond recognition', with knock-on effects (like rising seas) around the world. 🌊
www.science.org/doi/10.1126/...
February 7, 2025 at 2:56 PM
Reposted by IanPMatthews.bsky.social
This took me a long time to write 😮‍💨.
🥼❄️ ⚒️

Read about the seldom-told history about the first glaciologists, and why Louis Agassiz maybe gets too much credit for ice age hypothesis:
open.substack.com/pub/glaciers...
Glaciations, Tragedies, Betrayals, and Heartbreak
The rocky start to glaciology
open.substack.com
January 11, 2025 at 8:02 PM
Reposted by IanPMatthews.bsky.social
New continuous and annual resolution radiocarbon record of solar variability for the first millennium BCE from tree rings! www.nature.com/articles/s41...
Tracing ancient solar cycles with tree rings and radiocarbon in the first millennium BCE - Nature Communications
An annually resolved tree ring radiocarbon record reveals the 11-year solar cycle in the first millennium BCE, improving understanding of past solar activity and enhancing radiocarbon dating accuracy.
www.nature.com
January 6, 2025 at 6:01 PM
Visiting Dorset
January 2, 2025 at 2:19 PM
Reposted by IanPMatthews.bsky.social
Today’s poem is dedicated to all those who have taken it upon themselves to correct the grammar or spelling in my poems over the last few weeks.

It’s called ‘Pedents’.
November 30, 2024 at 9:08 AM
Reposted by IanPMatthews.bsky.social
We don't normally see "step changes" in the atmosphere, but the dichotomy of sea ice vs. no sea ice will do it.
The most dramatic climate change graphics you'll ever see. Utqiaġvik, Alaska average temperature in October 27.4F (-2.6C) is the 4th highest since 1920. The abrupt increase in October temperature and decreased variability is entirely the result of autumn sea ice loss. #akwx #ClimateChange #Arctic
November 1, 2024 at 3:55 PM
We got back from Windermere last weekend, the team collected some amazing sediments in a wonderful area. Our hosts at the jetty museum were fabulous and it was a great way to spend some of my research leave.
October 18, 2024 at 9:08 AM
We are currently in Bowness on Windermere building our coring rig. Hoping for some excellent sediment tomorrow!
October 6, 2024 at 8:32 PM
Reposted by IanPMatthews.bsky.social
The figures in the IPCC report are everywhere and do a lot to communicate what we do and don't know about climate change. This trenchant critique of how temperature reconstructions of the past 2k years were presented is spot on.

www.nature.com/articles/s43...
The IPCC’s reductive Common Era temperature history - Communications Earth & Environment
The summary of Common Era temperature reconstructions in the 2021 Sixth Assessment Report of the Intergovernmental Panel on Climate Change insufficiently characterizes reconstruction uncertainties ass...
www.nature.com
April 26, 2024 at 3:20 PM
Summer has nearly gone so here’s a picture from July to brighten up my day. Swinley Forest is a beautiful place to cycle!
September 3, 2024 at 9:47 PM
Glen Roy rightly getting the recognition it deserves. It’s my privilege to be able to take our MSc Past Climate and Environmental Change students here every Spring, and we find out new things every time we visit www.royalholloway.ac.uk/about-us/new...
A key Scottish site for understanding rapid climate change gains status as Geological Heritage Site
A team of academics have successfully petitioned for a special geological area in the Highlands to gain acknowledgment from The International Union of Geological Sciences (IUGS) Geological Sites.
www.royalholloway.ac.uk
August 28, 2024 at 8:39 PM
Some mapping of moraines and drone flying over peat filler basins
May 20, 2024 at 3:12 PM
A fancy lateral moraine in Glen Spean and some Early to Middle Holocene Pine stumps eroding out of the peat
May 20, 2024 at 3:10 PM
We had fun coring a beautiful lochan in Arisaig. The cores were pretty good also
May 20, 2024 at 3:07 PM
A moment to pause and reflect on a day of drone flying around Oban
May 20, 2024 at 3:05 PM
We can start with Glencoe!
May 20, 2024 at 3:04 PM