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joshfdean.bsky.social
Josh Dean
@joshfdean.bsky.social
170 followers 130 following 31 posts
UKRI Future Leaders Fellow, University of Bristol 🇳🇿/🇳🇱 https://watershedcarbonlab.weebly.com
Posts Replies Media Videos
Reposted by Josh Dean
tommaso-jucker.bsky.social
🚨Job opportunity🚨

We are hiring a 3yr research technician. If you love fieldwork, are passionate about forests & mountains, and want to up-skill in remote sensing, sensor networks and running field experiments this could be the dream job for you!
🧪🌳⛰️🛰️🌡️🍄

www.bristol.ac.uk/jobs/find/de...
Details | Working at Bristol | University of Bristol
www.bristol.ac.uk
November 14, 2025 at 9:38 AM
Reposted by Josh Dean
altagliabue.bsky.social
Seeking a three year postdoc in the field of ocean biogeochemistry and productivity using mechanistic models and synthesis of observations. Note the short fuse for applications. Please help distribute. All nationalities welcome to apply! 🌊

www.jobs.ac.uk/job/DPG117/p...
Postdoctoral Research Associate at University of Liverpool
Looking for a new job opportunity in academia? Check out this job opening for a Postdoctoral Research Associate on jobs.ac.uk!
www.jobs.ac.uk
October 29, 2025 at 5:38 PM
Reposted by Josh Dean
queenofpeat.bsky.social
Do you love bogs and Halloween? If so, please follow and share this thread to explore the eerie, the dark and the supernatural side of bog ecosystems. BogBoo. 1/

You are terrifying
and strange and
beautiful,
something not
everyone knows how
to love.
-Warsan Shire
Image of a misty spooky scene with fallen log, a pond, and patches of moss and other dark green vegetation.
October 31, 2025 at 3:03 PM
Reposted by Josh Dean
katharinehayhoe.com
If you take the time to read the whole Gates memo (which I did), the bulk of the content was mostly solid and encouraging. Really!

It was the FRAME that was off--very off, from the first line.

And when your framing is off, then how you make decisions and set priorities is off. THAT'S the problem.
My quote from an Axios interview, stating that: People often think of climate change as a separate bucket at the end of a long row of other buckets of problems we're trying to fix that are wrong in the world," Hayhoe told Axios. This includes poverty, disease and access to clean water. "Climate change is not a separate bucket," Hayhoe said. "The reason we care about climate change is that it's the hole in every bucket."
October 30, 2025 at 1:52 PM
joshfdean.bsky.social
It’s a real honour to be awarded a Philip Leverhulme Prize in Geography - looking forward to doing some more cool science with the help of this award! A big shout out to all my collaborators and mentors who have supported me along the way
October 23, 2025 at 3:03 PM
Reposted by Josh Dean
leverhulme.ac.uk
The Trust is thrilled to announce the 2025 Philip Leverhulme Prize Winners. Congratulations to this year’s cohort. Thirty extraordinary researchers from across a range of disciplines: leverhulme.ac.uk/news/2025PLP
Black background with gold swirls. 2025 Philip Leverhulme Prize Winners announced. Celebrating the achievements of thirty outstanding scholars. Leverhulme Trust logo and URL leverhulme.ac.uk/news/2025PLP.
October 21, 2025 at 8:05 AM
Reposted by Josh Dean
judithvdknaap.bsky.social
Ons artikel “Lines in the Landscape” is uit! Een artikel over de vaak ondergewaardeerde rol van sloten in onze landschappen. Van inspirerende gesprekken op een ‘ditch workshop’ tot dit mooie perspective paper.

Thank you @ditchontologist.bsky.social @peatymike.bsky.social
August 25, 2025 at 9:37 AM
Reposted by Josh Dean
ditchontologist.bsky.social
It's out! 🧪 "Lines in the landscape," on the under-appreciated importance of #ditches as diverse ecosystems: doi.org/10.1038/s432.... By @peatymike.bsky.social, @fluitans.bsky.social, @drtatariw.bsky.social, @timaukel.bsky.social, @jordannabergman.bsky.social, @juliecrabot.bsky.social, ...
Lines in the landscape - Communications Earth & Environment
Ditches have many overlooked environmental and societal roles, including impact on biodiversity and pollution, and management strategies to enhance their multifunctional landscape-scale benefits are n...
doi.org
August 23, 2025 at 3:00 AM
Reposted by Josh Dean
catearthsci.bsky.social
A few more from our recent Svalbard fieldwork 🫧 what an incredible place.
August 19, 2025 at 12:57 PM
Reposted by Josh Dean
jgrbiogeo.bsky.social
A new study investigates the three most important GHGs in ponds, lakes, and streams in an area of Arctic Siberia over two summers (2016–2017).

🔗Check out the #OpenAccess article: doi.org/10.1029/2024...

#AG#AGUPubsr#Arcticr#GreenhouseGas
New in JGR Biogeosciences: The Importance of Inland Water CO2, CH4, and N2O for Summertime Greenhouse Gas Exchange With the Atmosphere in Arctic Tundra Lowlands by Martyn Rosco et al. 2025
July 8, 2025 at 8:37 PM
Reposted by Josh Dean
lireactivewater.bsky.social
Interested in how river water changes under climate change + human perturbations?

Come join our diverse group of learners. You will learn and grow to ask questions, +use big data, reactive transport + machine learning models

"Somewhere, something incredible is waiting to be known." - Carl Sagan
August 13, 2025 at 8:34 PM
Reposted by Josh Dean
catearthsci.bsky.social
Bringing you today’s #bogbrunch from Svalbard - maybe permafrost picnic is more suitable? 🏔️🫧 @oxuniearthsci.bsky.social

#ch4 #co2
July 13, 2025 at 7:33 PM
Reposted by Josh Dean
pennyjohnes.bsky.social
‪Great opportunity: full @ukri.org funded PhD Studentship with 4 years fees, stipend (£19237 pa) and full Research Training Support Grant, working with Prof Ian Bull, Director of the National Environmental Isotope Facility and my
@ercrefresh.bsky.social team! Starts 10/2025 shorturl.at/AJREj 🧪
An algal bloom on a nutrient enriched lake encroaches into the Nymphaea alba and Chara hispida beds, causing plant dieback. Your work will develop a novel, targeted analytical method to allow us to rapidly screen samples to determine the molecular composition of the dissolved organic nutrients in these and other waters. These provide a critically important but overlooked nutrient resource driving ecosystem damage and biodiversity decline in waterbodies. We currently lack a unified technique that can rapidly screen samples in a targeted manner. You'll likely be highly motivated, enjoy both field and laboratory work, and be a good analytical chemist with attention to detail who is keen to make your mark through novel method development. Give Ian a ring or send him an e.mail (ian.d.bull@bristol.ac.uk), or contact me here or via my e.mail penny.johnes@bristol.ac.uk. We have a large team on the ERC REFRESH programme that you will be joining, along with two other PhD students due to start at the same time. Great team and learning opportunities.
July 11, 2025 at 2:38 PM
Reposted by Josh Dean
profbobhilton.bsky.social
Really fantastic @goldschmidt-confer.bsky.social #Goldschmidt2025 conference in Prague! Thanks @eageo.bsky.social

Some 🧪🥼⚒️ highlights #greenhouse gases in rivers & lakes; timescales of #water and element #storage in catchments; #enhancedweathering state of play; closing the geological #C budget.
Earth Surface Geochemistry group members in Central Prague enjoying an evening after busy science 🧪 at the Goldschmidt Conference
July 11, 2025 at 12:31 PM
joshfdean.bsky.social
An incredible first paper by Melanie Martyn Rosco where we integrated inland water greenhouse gas emissions into the terrestrial carbon budget of a Siberian lowland tundra landscape: agupubs.onlinelibrary.wiley.com/doi/full/10....
Key findings and some cool field photos in the thread below!
The Importance of Inland Water CO2, CH4, and N2O for Summertime Greenhouse Gas Exchange With the Atmosphere in Arctic Tundra Lowlands
Integrating carbon emissions from inland waters into the carbon landscape exchange offset the summer terrestrial carbon sink by ∼9–∼13%. Carbon emissions from inland waters were higher during flo...
agupubs.onlinelibrary.wiley.com
July 4, 2025 at 10:21 AM
Reposted by Josh Dean
profbobhilton.bsky.social
Check out this guest post on our recent paper on river #carbon in @carbonbrief.org with @joshfdean.bsky.social

@oxuniearthsci.bsky.social @ox.ac.uk @erc.europa.eu
June 19, 2025 at 1:48 PM
Reposted by Josh Dean
carbonbrief.org
NEW – Guest post: How the world’s rivers are releasing billions of tonnes of ‘ancient’ carbon | @joshfdean.bsky.social @profbobhilton.bsky.social

Read here: buff.ly/QwWlF6N
June 19, 2025 at 10:07 AM
Reposted by Josh Dean
commsearth.nature.com
🌏Using a global database of the radiocarbon content of rivers, isotopic mass balance suggests that about 60% of river carbon dioxide from millennial or older carbon sources

Read the latest research article published in Nature by our former external editor, Joshua Dean
www.nature.com/articles/s41...
Old carbon routed from land to the atmosphere by global river systems - Nature
Using a global database of the radiocarbon content of rivers combining new and published measurements, isotopic mass balance suggests that about 60% of river CO2 emissions are derived from millennial ...
www.nature.com
June 10, 2025 at 3:04 PM
Reposted by Josh Dean
nature.com
Nature research paper: Old carbon routed from land to the atmosphere by global river systems

https://go.nature.com/3Sz8Jdn
Old carbon routed from land to the atmosphere by global river systems - Nature
Using a global database of the radiocarbon content of rivers combining new and published measurements, isotopic mass balance suggests that about 60% of river CO2 emissions are derived from millennial or older carbon sources.
go.nature.com
June 10, 2025 at 7:37 AM
Reposted by Josh Dean
nature.com
A global analysis reveals that most carbon dioxide emitted by rivers derives not from modern plant material, as was thought, but from ancient, buried carbon

https://go.nature.com/3FQOdls
Ancient carbon released through modern rivers
A global analysis reveals that most carbon dioxide emitted by rivers derives not from modern plant material, as was thought, but from ancient, buried carbon.
go.nature.com
June 9, 2025 at 12:01 PM
Reposted by Josh Dean
peatymike.bsky.social
No advert out yet, but I will recruiting a 2yr postdoc, start date autumn 2025, at @livunigeog.bsky.social soon. Lowland and upland peatlands, GHGs, DOM and water chemistry. Plenty of fieldwork. Feel free to drop me a DM or email if you might be interested, and please spread the word.
June 5, 2025 at 12:32 PM
Reposted by Josh Dean
ukceh.bsky.social
An international team led by @joshfdean.bsky.social University of Bristol studied 700+ river sites across 26 countries.

The findings could reshape how we understand global #carbon emissions

Read more: bristol.ac.uk/news/2025/ju...
Research shows rivers release ancient carbon dioxide into the atmosphere, uncovering a greater role for plants and soil in the carbon cycle
A new study has revealed for the first time that ancient carbon, stored in landscapes for thousands of years or more, can find its way back to the atmosphere as CO₂ released from the surfaces of river...
bristol.ac.uk
June 6, 2025 at 9:06 AM
Reposted by Josh Dean
lireactivewater.bsky.social
Dean et al. @nature.com reveals that most CO2 emitted by global rivers derives not from modern plant material, as was thought, but from ancient, buried carbon www.nature.com/articles/s41...

How & to what extent will the age of riverine CO2 + land C storage will change in the future?
rdcu.be/eprek
June 5, 2025 at 7:23 PM
Reposted by Josh Dean
cabot-institute.bsky.social
A new study from @joshfdean.bsky.social & @gemmacoxon.bsky.social has revealed for the first time that ancient carbon, stored in landscapes for thousands of years or more, can find its way back to the atmosphere as CO₂ released from the surfaces of rivers. Read more -> bristol.ac.uk/cabot/news/2...
Research shows rivers release ancient carbon dioxide into the atmosphere, uncovering a greater role for plants and soil in the carbon cycle
A new study has revealed for the first time that ancient carbon, stored in landscapes for thousands of years or more, can find its way back to the atmosphere as CO₂ released from the surfaces of river...
bristol.ac.uk
June 5, 2025 at 9:42 AM
Reposted by Josh Dean
profbobhilton.bsky.social
New paper! led by Josh Dean “Old carbon routed from land to the atmosphere by global river systems”
doi.org/10.1038/s415...

#radiocarbon in #rivers reveals the age of CO2 they release to the atmosphere.

An active leak of old carbon from land.
🧪⚒️
@joshfdean.bsky.social @oxuniearthsci.bsky.social
June 4, 2025 at 3:27 PM