Dr Kaja Fenn (she/her)
@drloessismore.bsky.social
280 followers 580 following 59 posts
Lecturer in Environmental Change @liverpooluni.bsky.social Interested in anything loessy, dusty, Quaternary, luminescence dating, and geochemistry. Happiest outside or in the dark lab. www.kajafenn.com
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Reposted by Dr Kaja Fenn (she/her)
watershed-i.bsky.social
Campaigners + local businesses claim phosphates + nitrates from the collective poo of as many as 23million chickens packed into the Wye catchment from a growing number of intensive chicken farms are driving algal blooms, harming fish + wildlife.
🧵 1/
www.bbc.co.uk/news/article...
River Wye pollution prompts UK's largest environmental lawsuit
Livestock and water companies are accused of “extensive” pollution in the Wye, Lugg and Usk rivers.
www.bbc.co.uk
Reposted by Dr Kaja Fenn (she/her)
kellyhereid.bsky.social
Sheesh - a tsunami big enough to push coral boulders 100s of m inland in the British Virgin Islands around the year 1400, likely sourced from an earthquake on the Puerto Rico Trench.
drloessismore.bsky.social
This supports chronological information derived from nearby Mumba Rockshelter, Lake Eyasi, Nasera Rock-shelter, and Enkapune Ya Muto Rockshelter in southern Kenya.
drloessismore.bsky.social
The new dates provisionally bracket the entire Middle Stone Age (MSA) to Later Stone Age (LSA) transition at Olduvai between roughly 63,000 years ago (the provisional age for the youngest MSA tools in the underlying Ndutu Beds) and 34,000 years ago (the oldest LSA tools in the Naisiusiu Beds).
drloessismore.bsky.social
Dating the Naisiusiu beds has historically been challenging due to scarce datable material. Our results now refine the Naisiusiu beds to:
• Lower Unit by 14C: 49,728±1378 cal year BP
• Middle Unit (hosting the LSA assemblage) by OSL 34.2±2.8 - 24.0±2.0 ka
• Upper Unit by OSL: 24.0±2.0 - 19.6±1.6 ka
drloessismore.bsky.social
📣Our new paper presents new a high-resolution luminescence and radiocarbon chronology for the Naisiusiu Beds at Olduvai Gorge, Tanzania. This site is crucial for understanding the cultural and biological evolution of Homo sapiens in the Late Pleistocene.
www.sciencedirect.com/science/arti...
drloessismore.bsky.social
🧩 Highlights:
• First detailed geological sequence for Dalarik-1 Cave
• New age constraints on key volcanic + sedimentary units
• Links between volcanic history and archaeological preservation in the southern Caucasus
drloessismore.bsky.social
Check out our new paper 👇 in Quaternary Science Reviews.
It explores the geological context of Dalarik-1 Cave (Armenia) — refining how we understand early human activity in the Aragats Volcanic Province.
By the wider @humendylab.bsky.social team

📄 www.sciencedirect.com/science/arti...
drloessismore.bsky.social
It’s been a hectic summer and start to the academic year — full of exciting developments that I haven’t had a chance to share yet.

Over the next week I’ll be sharing a few updates — some new papers, additions to the team, a new role, and a brand-new project 👀

Stay tuned — lots of news coming soon!
Reposted by Dr Kaja Fenn (she/her)
watershedlab.bsky.social
🚨FOUR tenure track positions in my dept @ucalgary.bsky.social @ucalgaryscience.bsky.social in applied & computational geophysics, subsurface geochemistry, sedimentary geology, and sustainable soil science. careers.ucalgary.ca/search/jobs?...

(please reskeet widely!) #academicsky 🧪⚒️🇨🇦
Opportunities matching 'earth'
Search 4 Careers available at University of Calgary.
careers.ucalgary.ca
Reposted by Dr Kaja Fenn (she/her)
modacitylife.com
The global phenomenon of “bikelash” has become one of the biggest barriers to implementing interventions that make our streets more liveable, accessible and sustainable. So how do we best manage it as advocates for change? Here are eight strategies we recently presented at the Velo-city Conference.🧵
Powerpoint slides from a presentation entitled “Unleashing the Silent Majority to Beat Bikelash”, which feature photographs of urban transformation from cities around the world.
drloessismore.bsky.social
Our new study lead produced enhanced paleo‑geomorphological mapping of the Ararat Depression to decode how shifting landforms shaped human movement and settlement in the Late Pleistocene
doi.org/10.1016/j.qu...

@humendylab.bsky.social @arikmalinsky-b.bsky.social @yannismicrooikon.bsky.social
Redirecting
doi.org
Reposted by Dr Kaja Fenn (she/her)
petergleick.bsky.social
There are 2 previous historical cases of countries destroying their science and universities, crippling them for decades: Lysenkoism in the USSR and Nazi Germany. The Trump administration will be the 3rd.
It's not just budgets but research, institutions, expertise, and training the next generation.
Graphs showing 25 years of budgets for the National Institute of Health, NASA, and the NSF. In all cases, the proposed budget for next year is far, far below any year of the previous quarter century.
Reposted by Dr Kaja Fenn (she/her)
‘The West Tofts handaxe is a small British Acheulean biface well known for its cortical preservation of a fossilised bivalve shell’
www.sciencedirect.com/science/arti...
Reposted by Dr Kaja Fenn (she/her)
toribassett.bsky.social
Great to attend the Mersey Forest plan launch yesterday at the Museum of Liverpool
Reposted by Dr Kaja Fenn (she/her)
subfossilguy.bsky.social
The Alpine glaciers are lacking snow! ❄️🥵

~2 m of snow less than average on Austrian glaciers! 📈

The difference with last year (a negative annual balance though) is striking!

Half last year accumulation in this snow pit at Hallstätter Glacier (Dachstein) 👇

📷 Giulia Bertolotti / IG
Reposted by Dr Kaja Fenn (she/her)
livuninews.bsky.social
Congratulations to Prof Mark Green (@livunigeog.bsky.social) who has been awarded the Royal Geographical Society (@rgsibg.bsky.social) 2025 Back Award for outstanding geographical research impacting public policy on a national and international scale👏👏👏

news.liverpool.ac.uk/2025/05/12/p...
drloessismore.bsky.social
Wrapped up fieldwork in Spain! Incredible fluvial sequences, archaeology, loess, and top-notch company. Learned so much about the Tagus Basin’s Quaternary history from real experts.
Now to prep for next year's fieldwork in Madrid: notes, photos, permits—& a new PhD student! 🇪🇸

#LoessIsMore
Gravel quarry Sediment wedge Colleagues looking at sediments Sedimentary cliffs
Reposted by Dr Kaja Fenn (she/her)
rjboothroyd.bsky.social
Global RIver Topology (GRIT) is a new and improved global river network that represents bifurcations, multi-thread channels and canals. Great to see this important output from the NERC-funded EVOFLOOD project. See more here: doi.org/10.1029/2024...
Reposted by Dr Kaja Fenn (she/her)
zacklabe.com
The largest temperature anomalies were found over the extratropics of the Northern Hemisphere again in April 2025.

Plot shows zonal-mean surface air temperature anomalies, where latitude = x-axis (not scaled by distance). Data from NASA/GISS GISTEMPv4 using their 1951-1980 reference period.
Bar graph showing zonal mean surface air temperature anomalies for the period of April 2025. Most all latitude bands observed above average temperature anomalies, especially in the Northern Hemisphere.
drloessismore.bsky.social
Congratulations-it was a huge 1st paper. And thanks for involving me.