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Bob Hilton

@profbobhilton.bsky.social
944 followers 603 following 140 posts

Scientist studying carbon in rivers 🌍| CO2 sequestration 🪨 | Biogeochemistry | Arctic CH4 | Isotopes & Radiocarbon | leading ERC RIV-ESCAPE | Prof at University of Oxford riv-escape.weebly.com

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Reposted by Bob Hilton
PP Systems International @ppsystems.bsky.social · 02/09/2026
Every face in this collage represents innovative research. Winners come from #plantscience, #horticulture, #ecology, #soilscience & #environmentalscience. Join them! Apply NOW: bit.ly/PPSITA PLS SHARE! @soilscienceaust.bsky.social @asa-cssa-sssa.bsky.social @agu.org @profbobhilton.bsky.social
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Reposted by Bob Hilton
The Royal Society @royalsociety.org · 12/08/2026
We are happy to announce the nine outstanding researchers from across the country who have been awarded our prestigious Faraday Discovery Fellowships, which support outstanding mid-career research leaders in the UK. royalsociety.org/news/2026/08...
royalsociety.org
Second cohort of exceptional research leaders awarded Royal Society Faraday Discovery Fellowships | Royal Society
Nine pioneering researchers have been announced as this years' recipients.
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Reposted by Bob Hilton
Goldschmidt Conference @goldschmidt-confer.bsky.social · 17/07/2026
As #Goldschmidt2026 comes to a close, we thank you for being part of this year’s conference in Montréal! We warmly invite you to join us for the upcoming Goldschmidt conferences: 2027: July 11–16, Paris, Fr 2028: July 09–14, Tokyo, JP
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Bob Hilton @profbobhilton.bsky.social · 07/07/2026
Reminder of this postdoctoral research associate #job in #biogeochemistry at Oxford @oxfordgeography.bsky.social deadline 13th July - pls get in touch if any Qs! 🥼🧪⚒️
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Benjamin Gill @sedgeochem.bsky.social · 06/07/2026
Thallium isotopes can be used to reconstruct marine oxygenation (a proxy for this) since the isotope composition of the ocean is heavily influenced by the formation of manganese oxide minerals that form under oxygenated marine conditions. Here’s a good review of the Tl isotope proxy (2/7) 🧪⚒️
cambridge.org
Application of Thallium Isotopes
Cambridge Core - Geochemistry and Environmental Chemistry - Application of Thallium Isotopes
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Bob Hilton @profbobhilton.bsky.social · 29/06/2026
Check out this really great article below by @arstechnica.com, where he explores our recent @ukri.org funded research www.nature.com/articles/s41... and highlights future questions and debates it opens up ⚒️🧪🥼 @oxuniearthsci.bsky.social @oxfordgeography.bsky.social
nature.com
Rhenium isotopes reveal enhanced rock organic carbon oxidation over the Toarcian Oceanic Anoxic Event - Nature Communications
Widespread volcanic eruptions caused rapid warming during the Early Jurassic. Rhenium isotopes reveal that this led to positive climate feedbacks as higher temperatures increased weathering of organic...
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Bob Hilton @profbobhilton.bsky.social · 22/06/2026
New Job! Please RP! 2 year Postdoctoral Research Associate in #Biogeochemistry in Oxford @oxfordgeography.bsky.social using novel methods to explore organic matter stability and new proxies of rock #weathering &wider team in Southampton. Any Qs let me know 🧪🥼⚒️ my.corehr.com/pls/uoxrecru...
Picture of central Oxford Come join the team, including Emily (post doc at Southampton the the project) and Bob
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Reposted by Bob Hilton
Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · 18/06/2026
If there are any First nations, Inuit, or Metis geoscientists in my sphere who are interested in grad school, the Indigenous Scholars Awards and Supplements Pilot Initiative is being expanded to include doctoral and postdoctoral levels. Repost! 🧪⚒️ sshrc-crsh.canada.ca/en/news/2026...
sshrc-crsh.canada.ca
SSHRC and NSERC expand Indigenous scholars initiative to include funding for doctoral students and postdoctoral researchers
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Noam Vogt-Vincent @nvogtvincent.co.uk · 17/06/2026
Applications for the Rhodes Scholarship (2027 start) are open to those from eligible countries: www.rhodeshouse.ox.ac.uk/scholarships/. Happy to discuss ideas with anyone interested in doing a PhD or research master's in marine dispersal or coral reef oceanography themes...
rhodeshouse.ox.ac.uk
Scholarships
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Bob Hilton @profbobhilton.bsky.social · 17/06/2026
New paper led by Gordon Inglis - see @organiccarbon.bsky.social below. On how #carbon burial (via erosion on land of soils and plants, and river delivery to the ocean) could have helped drawdown #CO2 after a warming event 56 millions of years ago.
Seeing erosion of soil and vegetation carbon in real time in the Peruvian Andes Filter paper of river sediments in Peru, full of mineral organic carbon and plant debris on their way downstream.
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Reposted by Bob Hilton
European Geosciences Union (EGU) @egu.eu · 16/06/2026
🎙️#EGUHydroTalks EP4: Li Li on big data in hydro-biogeochamical processes and women in hydrology. 👋Meet Prof. Li Li (Penn State), leader of the Li Reactive Water group at Penn State University, whose research sits at a unique intersection of hydrology, ecology, and biogeochemistry. 📹: egu.eu/9DF2OD
Image description: Hydro Talks" with a vintage microphone Text reads "By Hydrological Sciences Division" and "EP 4." Available on YouTube.''
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Bob Hilton @profbobhilton.bsky.social · 16/06/2026
our outputs that have opened up rhenium isotopes ⛰️🏞️💦🌊🌋 +more to come! 8/8 Rivers www.sciencedirect.com/science/arti... Igneous rocks www.geochemicalperspectivesletters.org/article2402/ Hydrothermal www.sciencedirect.com/science/arti... Sed. rocks agupubs.onlinelibrary.wiley.com/doi/full/10....
sciencedirect.com
Fractionation of rhenium isotopes in the Mackenzie River basin during oxidative weathering
Rhenium (Re) is a trace element whose redox chemistry makes it an ideal candidate to trace a range of geochemical processes. Here, we report the first…
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Bob Hilton @profbobhilton.bsky.social · 16/06/2026
It’s been so amazing to work with them and the #research #team - Mathieu Dellinger, Wenhao Wang and Madeleine Stow. All amazing, and all gone on now to exciting #geochemical careers in #academia and #industry. 7/n
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Bob Hilton @profbobhilton.bsky.social · 16/06/2026
And while I’m here, a quick summary of the #rhenium #isotope work. What an exciting system, but challenging to measure. It started from a new collaboration in 2019 on a #NERC @ukri.org funded project with Alex Dickson and Julie Prytulak. 6/n
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Bob Hilton @profbobhilton.bsky.social · 16/06/2026
What’s next? Well we need more paleo records and modelling efforts for sure to explore, test and confirm these ideas. But we also need carefully designed #field and #laboratory experiments to track rock weathering and their controls 🥼🧪⚒️⛰️ So much to do! 5/n
Making measurements of a rock weathering in the field
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Bob Hilton @profbobhilton.bsky.social · 16/06/2026
This is a bit controversial, because it means weathering can act as a #positive carbon cycle feedback in the Earth system, warming during warming (🥵 => 📈 => 🥵🥵). It could mean that sedimentary rock weathering partly governs the time it takes to recover from warming events. 4/n
Some modern day weathering of sedimentary rocks in Canada
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Bob Hilton @profbobhilton.bsky.social · 16/06/2026
We found a shift in rhenium isotopes… we could only explain this by #increased rock organic #carbon #weathering - increasing #CO2 release during the event. We link this to #warmer #temperatures during the event, matching modern observations: 3/n www.nature.com/articles/s41...
nature.com
Temperature control on CO2 emissions from the weathering of sedimentary rocks - Nature Geoscience
The release of carbon dioxide during oxidative weathering of sedimentary rocks acts as a positive feedback to warming, according to 2.5 years of CO2 flux measurements from the Draix-Bléone Critical Zo...
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Bob Hilton @profbobhilton.bsky.social · 16/06/2026
We aimed to track how #CO2 release from weathering of ancient organic #carbon in rocks responded to a major episode of environmental change. We chose the T-OAE in the Jurassic and used a novel isotope method to do this - #rhenium isotopes. 2/n
Some organic rich foods rocks from lower Jurassic near Charmouth UK
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Bob Hilton @profbobhilton.bsky.social · 16/06/2026
New paper! Led by Madeleine Stow on “Rhenium isotopes reveal #enhanced rock organic #carbon oxidation over the Toarcian Oceanic Anoxic Event” ⚒️🧪🥼🛘 A thread … 1/n @oxfordgeography.bsky.social @oxuniearthsci.bsky.social @durhamearthsci.bsky.social @ukri.org www.nature.com/articles/s41...
nature.com
Rhenium isotopes reveal enhanced rock organic carbon oxidation over the Toarcian Oceanic Anoxic Event - Nature Communications
Widespread volcanic eruptions caused rapid warming during the Early Jurassic. Rhenium isotopes reveal that this led to positive climate feedbacks as higher temperatures increased weathering of organic...
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Ben Bond-Lamberty @benbondlamberty.bsky.social · 15/05/2026
I am looking forward to reading this: Multi-Decadal Dynamics of Wetland Methane Emissions Revealed by Knowledge-Guided Machine Learning. By Qing Zhu and colleagues, including @avnimalh0tra.bsky.social and @sparklemalone.bsky.social onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
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Noam Vogt-Vincent @nvogtvincent.co.uk · 13/05/2026
Our department is hiring a new Outreach and Communications Manager! If you're interested in science outreach + comms and would like to join a small and friendly Earth Sciences department, please think about applying! my.corehr.com/pls/uoxrecru...
my.corehr.com
Job Details
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Reposted by Bob Hilton
Li Li (李黎) @lireactivewater.bsky.social · 13/05/2026
#WARR 5.21. Profs. Jorien Vonk + Suzanne Tank one of our favorite elements in the periodic table, in rivers on top of the world Register here: psu.zoom.us/meeting/regi...
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Bob Hilton @profbobhilton.bsky.social · 08/05/2026
I’ll be presenting at 0945, sharing work for feedback on “Climate sensitive #methane release from #sediment-laden channels in #Arctic #rivers” linking fluvial geomorphology to biogeochemistry. 🧪⚒️🥼 meetingorganizer.copernicus.org/EGU26/EGU26-...
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Bob Hilton @profbobhilton.bsky.social · 08/05/2026
Check out the #EGU26 session today on “Greenhouse gas dynamics and fluxes in aquatic ecosystems” meetingorganizer.copernicus.org/EGU26/sessio...
meetingorganizer.copernicus.org
Session BG4.3
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Bob Hilton @profbobhilton.bsky.social · 05/05/2026
Check out the Permafrost-climate-feedbacks session at #EGU26, incl. new findings from our @ukri.org #NERC research: Periglacial Regions as Hotspots of Oxidative Weathering that Drive Deglacial Acceleration of Rock Carbon Release Led by Al Knight 🧪 meetingorganizer.copernicus.org/EGU26/EGU26-...
meetingorganizer.copernicus.org
Abstract EGU26-12991
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Reposted by Bob Hilton
AGU (American Geophysical Union) @agu.org · 01/05/2026
A new study in Global Biogeochemical Cycles examines the long-term trends (1980–2022) of calcium, magnesium, and sulfate ion concentrations in the Kolyma River in northeastern Siberia. Read the #OpenAccess article: doi.org/10.1029/2025... #AGUPubs #Permafrost #ClimateChange #Rivers #Arctic
New in GBC
Long-Term Increases in Ca2+, Mg2+, and SO42− Concentrations in the Kolyma River (1980–2022) Due To Yedoma Degradation
by Tashiro et al 2026
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Alice Milner @alicemmilner.bsky.social · 28/04/2026
Peatlands store more carbon than the world's forests yet fundamental questions remain unanswered. Today we publish 50 priority research questions, identified by 467 participants from 54 countries #PeatQuest #Peatlands www.nature.com/articles/s43...
Peatland landscape with scattered trees
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Catherine Baldwin @catearthsci.bsky.social · 23/04/2026
Learning how to sample peat - I think I may stick to river water 😅
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Howard Lee @hlee.bsky.social · 17/04/2026
👀 Organic carbon weathering as an amplifier of climate warming 183 million years ago: “Weathering of sedimentary carbon-bearing rocks, such as shales, can emit significant quantities of CO2, causing temperatures to rise and further weathering to occur” ⚒️🧪 www.earth.ox.ac.uk/article/not-...
earth.ox.ac.uk
Not Just a Carbon Sink: Weathering Found to Drive Ancient Global Warming
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Reposted by Bob Hilton
Oxford Earth Sciences @oxuniearthsci.bsky.social · 17/04/2026
New research from @profbobhilton.bsky.social has shown that chemical weathering does not always stabilise rising temperatures in the geological past, and that weathering of carbon-rich sedimentary rocks reinforced warming during the Early Jurassic 🌍 Read more: www.earth.ox.ac.uk/article/not-...
earth.ox.ac.uk
Not Just a Carbon Sink: Weathering Found to Drive Ancient Global Warming
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Oxford Earth Sciences @oxuniearthsci.bsky.social · 16/04/2026
We are hiring! Postdoctoral Research Assistant in lithium behaviour in volcano-sedimentary systems The deadline for applications is 18th May 2026 Apply now: www.earth.ox.ac.uk/vacancies
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Catherine Baldwin @catearthsci.bsky.social · 14/04/2026
After a couple of days of pretty bad weather we’ve been treated to some perfect field conditions today - can’t believe this is northern Scotland! #peat #methane
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Prof Ian Hall @ianhall.bsky.social · 14/04/2026
Glaciers had one of their worst years in 2025: 👉 408 billion tonnes of ice mass lost 👉 ≈1.1 mm added to global sea levels 👉 6 of the 7 worst years have happened in the past 7 yrs Since 1975: ~9,600 billion tonnes gone (≈26.4 mm SLR) This isn’t a gradual change... www.nature.com/articles/s43...
nature.com
Global glacier mass change in 2025 - Nature Reviews Earth & Environment
Glaciers lost 408 ± 132 Gt of mass during the hydrological year 2025, equivalent to 1.1 ± 0.4 mm sea-level rise. Since 1975, glacier mass loss has totalled 9,583 ± 1,211 Gt, equivalent to 26.4 ± 3.3 m...
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Catherine Baldwin @catearthsci.bsky.social · 10/04/2026
Back in the bogs for some RIV-ESCAPE fieldwork! Happy place. @profbobhilton.bsky.social
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James Rae @mudwaterclimate.bsky.social · 14/03/2026
Chair in Earth Sciences position @uniofstandrews.bsky.social closing soon - Monday 23 March. Very broad remit, so if you’d like to join our lovely school, and get to live in the super beautiful and friendly wee nation of Scotland, please apply! www.st-andrews.ac.uk/earth-scienc... ⚒️🌊🧪
East Sands beach, St Andrews, in the sunshine (which happens more often than you probably think!)
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EAG @eageo.bsky.social · 09/03/2026
Job alert: Lab Manager, School of Geography & the Environment, University of Oxford (UK). Apply by 13 March. More info: buff.ly/Ucj13Ds @oxfordgeography.bsky.social
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Gerard Rocher-Ros @grocherros.bsky.social · 09/03/2026
Ryan (and me) are hiring a PhD student! Sweden is a great country to do a PhD, see the link or ask us for more details, or share with potential students!
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Kristen Cook @kristencook.bsky.social · 09/03/2026
Please nominate! That geoscientist that you think is so awesome has no chance to win an award/medal if they're not nominated! In Geomorphology we have the Outstanding Early Career Scientist award (www.egu.eu/awards-medal...) and the Bagnold Medal (www.egu.eu/awards-medal...).
egu.eu
Ralph Alger Bagnold Medal
EGU, the European Geosciences Union, is Europe’s premier geosciences union, dedicated to the pursuit of excellence in the Earth, planetary, and space sciences for the benefit of humanity, worldwide.
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Bob Hilton @profbobhilton.bsky.social · 09/03/2026
New job! Please RP! 🥼🧪 ⚒️ Laboratory Manager (gr8, permanent) @oxfordgeography.bsky.social Leading the Geolabs, with cutting edge facilities in water #geochemistry, #ecosystem science, #eDNA, luminescence Apply by 13 March or please get in touch with any Qs my.corehr.com/pls/uoxrecru...
my.corehr.com
Job Details
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Marcus Schiedung @mschiedung.bsky.social · 03/03/2026
Our perspective on ERW -Uncertainties of enhanced rock weathering for climate-change mitigation- was featured in the New Scientist Here is the paper: www.nature.com/articles/s43...
nature.com
Uncertainties of enhanced rock weathering for climate-change mitigation - Nature Reviews Earth & Environment
Enhanced rock weathering (ERW) is a carbon dioxide removal (CDR) strategy that converts atmospheric CO2 to stable carbonates by applying minerals to agricultural land. This Perspective discusses the p...
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David Pyle @davidmpyle.bsky.social · 26/02/2026
Great news from #Cornwall, where #geothermal energy and lithium are now being generated from deep, hot granite. ⚒️ www.bbc.co.uk/news/article...
bbc.co.uk
Earth's heat to produce electricity for homes in UK clean energy first
Water super-heated by rocks will also provide the UK's first domestic supply of the critical mineral lithium.
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Marcus Schiedung @mschiedung.bsky.social · 26/02/2026
Is enhanced rock weathering ready as a climate mitigation strategy? Our latest work explores key uncertainties — from feedstock availability and the land–ocean continuum to plant–soil interactions and socioeconomic impacts. Now published in our perspective paper: ➡️ doi.org/10.1038/s430...
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Jordon Hemingway @jordonhemingway.bsky.social · 24/02/2026
🚨 Paper alert! 🚨 Happy to see this review out in @natureportfolio.nature.com Reviews Earth & Environ! We go through looming uncertainties related to wide-scale application of ERW. It will be a rocky path! @mschiedung.bsky.social @profbobhilton.bsky.social @eth-eaps.bsky.social @usyseth.bsky.social
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Judith Hauck @jhauck.bsky.social · 22/02/2026
#RECCAP2 paper alert, Jemma Wadham led the polar chapter, summarizing knowns and (large) unknowns of carbon stocks and fluxes from ice sheets to land fringes, fjords, 🌊 oceans and sediments.🧪 Excellent reference starting point for future work. agupubs.onlinelibrary.wiley.com/doi/10.1029/... @awi.de
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Prof Ian Hall @ianhall.bsky.social · 19/02/2026
Why has it been so wet this winter (in the UK)? www.metoffice.gov.uk/blog/2026/wh...
metoffice.gov.uk
Why has it been so wet this winter?
This winter has felt exceptionally wet for many parts of the UK, with repeated bouts of rain and very few prolonged dry spells.
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Ben Bond-Lamberty @benbondlamberty.bsky.social · 19/02/2026
Made some revisions to my "Effective, Efficient, and Fair Peer Reviewing" presentation in advance of a seminar at U-Toledo today docs.google.com/presentation...
docs.google.com
Effective, efficient, and fair peer reviewing 2026
Effective, efficient, and fair peer reviewing Ben Bond-Lamberty Based on a presentation at the AGU Early Career Scientist Workshop, 2019 1
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Bob Hilton @profbobhilton.bsky.social · 19/02/2026
We find large #carbon stores and fluxes associated with ice sheets, their land fringes, and oceans. But many remaining uncertainties, & we still lack measurements to assess change. 🧪 Great to be a part of the team working on this. @oxuniearthsci.bsky.social @oxfordgeography.bsky.social
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Bob Hilton @profbobhilton.bsky.social · 19/02/2026
New paper! Led by Jemma Wadham on “An #Ice Sheet-to-Ocean Analysis of #Carbon Stores and Fluxes in Earth's Polar Regions (#RECCAP2, Polar Ice Sheets)” ❄️🧪🥼 agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
An Ice Sheet‐to‐Ocean Analysis of Carbon Stores and Fluxes in Earth's Polar Regions (RECCAP2, Polar Ice Sheets)
Polar ice sheets, land fringes and oceans host vast carbon reserves (>10,000 billion tonnes, Gt) but with high uncertainty Polar ice sheets and their surrounding oceans are likely net sinks for C...
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Jordon Hemingway @jordonhemingway.bsky.social · 09/02/2026
Very excited to announce *TWO* fully-funded PhD positions starting this summer focusing on greenhouse gases in the peatlands of the Congo Basin! Both positions are joint between my group in @eth-eaps.bsky.social and that of @johansix.bsky.social @usyseth.bsky.social. Come join us!
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Kevin Anchukaitis @thirstygecko.bsky.social · 05/02/2026
We're hiring a full-time technician to support radiocarbon analyses. If you have some experience with analytical instruments and background in chemistry, earth sciences, archaeology, and/or ecology, this could be the job for you! arizona.csod.com/ux/ats/caree...
arizona.csod.com
Research Technician III, Tree Ring Laboratory
Duties and Responsibilities:Assisting with the meticulous preparation of samples for radiocarbon analysis following established protocols. This includ...
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