Josh Dean

Peaty people: we're hosting a special issue in the Taylor & Francis journal Sustainable Environment. Do consider submitting to it - the scope is broad and multidisciplinary. think.taylorandfrancis.com/article_coll...

🚨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...

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!

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...

Image of a misty spooky scene with fallen log, a pond, and patches of moss and other dark green vegetation.

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

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."

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.

Thank you!

@bristoluni.bsky.social @cabot-institute.bsky.social

My plan is to use the prize funds to explore greenhouse gas isotope biogeochemistry in global rivers - keep an eye out for a postdoc position coming soon

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

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.

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

I’ll try remember to flick you a message when tickets go on sale for next year

If you want to try a lot of whiskies in a short amount of time, the London Whisky Show is great! I was there last week and even caught up with Mike Billett, who always has good suggestions of what to try

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

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...

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, ...

A few more from our recent Svalbard fieldwork 🫧 what an incredible place.

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

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...

#AGUPubs #Arctic #GreenhouseGas

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

Looks amazing, good luck in the field!

Bringing you today’s #bogbrunch from Svalbard - maybe permafrost picnic is more suitable? 🏔️🫧 @oxuniearthsci.bsky.social

#ch4 #co2

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.

‪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 🧪

Earth Surface Geochemistry group members in Central Prague enjoying an evening after busy science 🧪 at the Goldschmidt Conference

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.

We show that summertime CO2 and CH4 emissions from inland waters are an important component of lowland tundra carbon exchange with the atmosphere offsetting the terrestrial sink capacity. This is an important consideration for constraining future Arctic responses to climate warming

And that N2O inland water emissions were negligible compared to CO2 and CH4

We also found that a large flood pulse increased total landscape greenhouse gas emissions (and broke our eddy covariance tower...)

We found that inland waters (lakes, ponds and streams) offset the summer terrestrial carbon sink by about 9–13%

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...

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!

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

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

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 ...

🌏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 or older carbon sources.

Nature research paper: Old carbon routed from land to the atmosphere by global river systems

https://go.nature.com/3Sz8Jdn