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

Reminder of this postdoctoral research associate #job in #biogeochemistry at Oxford @oxfordgeography.bsky.social deadline 13th July - pls get in touch if any Qs! 🥼🧪⚒️

Bob Hilton@profbobhilton.bsky.social · last mo.

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...

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) 🧪⚒️

Application of Thallium Isotopes

Cambridge Core - Geochemistry and Environmental Chemistry - Application of Thallium Isotopes

cambridge.org

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

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...

nature.com

Howard Lee@hlee.bsky.social · last mo.

In my latest article for @arstechnica.com I write about a new study that looks at the competition between the process that *reduces CO2* over geological timescales, versus organic carbon weathering, which *emits* CO2 over a similarly long timeframe. ⚒️🧪 arstechnica.com/science/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...

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...

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...

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.

Rage Against the Miocene@organiccarbon.bsky.social · 2mo ago

We have known for a long time that rapid CO2-induced global warming 56 million years ago caused extreme rainfall events and enhanced erosion of the landscape. Our new work shows that this drove increased burial of eroded soil and plant organic matter, which could have removed some of that CO2.

🎙️#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

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...

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...

nature.com

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/...

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...

#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...

Check out the #EGU26 session today on “Greenhouse gas dynamics and fluxes in aquatic ecosystems” meetingorganizer.copernicus.org/EGU26/sessio...

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-...

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

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...

Learning how to sample peat - I think I may stick to river water 😅

👀 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-...

Not Just a Carbon Sink: Weathering Found to Drive Ancient Global Warming

earth.ox.ac.uk

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-...

Not Just a Carbon Sink: Weathering Found to Drive Ancient Global Warming

earth.ox.ac.uk

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

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

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...

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...

nature.com

Back in the bogs for some RIV-ESCAPE fieldwork! Happy place. @profbobhilton.bsky.social

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... ⚒️🌊🧪

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

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!

Ryan Sponseller@ryansponseller.bsky.social · 5mo ago

We are hiring a PhD student at Umeå University to work on GHG dynamics in boreal streams and groundwater. See the following advertisement and reach out with any questions! www.umu.se/en/work-with... @grocherros.bsky.social

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...).

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.

egu.eu

European Geosciences Union (EGU)@egu.eu · 5mo ago

Now it's time to nominate your friends and colleagues for an #award or #medal, with about 50 medals and awards to choose from. 📆 Submit by 15 June 2026! 👀 Learn more about the nomination requirements here: egu.eu/825VD3 📸: Camilo Arias Ruiz on imaggeo.egu.eu

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...

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...

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...

nature.com

New Scientist@newscientist.com · 5mo ago

Spreading crushed silicate rocks like basalt on fields could remove up to 1.1 billion tonnes of carbon dioxide from the atmosphere each year while increasing crop yields. Read more: www.newscientist.com/articl...