Jordon Hemingway
@jordonhemingway.bsky.social
ETH Earth Science assistant prof. studying long-term C, O, and S cycle evolution using isotopes and biomarkers. Butcherer of the German language. 🇺🇲 in 🇨🇭 He/him.
🚨PhD position alert!🚨 We're hiring a PhD to investigate isotope compositions of sulfur-bearing organic molecules to try to develop potential bio-signatures. Funded by NCCR Genesis and joint between Johanna Marin-Carbonne @unil.bsky.social and myself! career5.successfactors.eu/career?caree...
Opportunités de carrière : Phd position on isotope characterization of sulfur-bearing organic compounds (22905)
career5.successfactors.eu
New paper in JGR:Solid Earth! We use hot springs to answer a seemingly simple question: How deep does water derived from the surface penetrate into the Himalayas? Tl, dr: it depends + fault type and deep volatile degassing matter agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Circulation Depths of Meteoric Water in the Himalayas: Controls and Implications for Seismicity
Meteoric water circulation is more prevalent along active fault zones, but its maximum depth is controlled by the fault's deformation style Variations in topography, orographic precipitation, and...
agupubs.onlinelibrary.wiley.com
Molecular fossils reveal secrets of Earth’s recovery from ancient global warming event
Scientists have uncovered new evidence from one of Earth’s most extreme ancient warming events, revealing how the climate may recover long after human-driven CO₂ emissions cease.
eaps.ethz.ch
Jordon Hemingway@jordonhemingway.bsky.social · 2mo ago🚨paper alert!🚨 Thrilled to share our work, led by @climategordon.bsky.social, on terrestrial OC burial during the PETM, which was likely much higher then previously thought. Implications for C-cycle responses to hothouse climates! @natgeosci.nature.com www.nature.com/articles/s41...
🚨paper alert!🚨 Thrilled to share our work, led by @climategordon.bsky.social, on terrestrial OC burial during the PETM, which was likely much higher then previously thought. Implications for C-cycle responses to hothouse climates! @natgeosci.nature.com www.nature.com/articles/s41...
Enhanced marine burial of terrestrial organic carbon through the Palaeocene–Eocene Thermal Maximum - Nature Geoscience
The burial of terrestrially derived organic carbon in coastal marine sediments greatly increased during the Palaeocene–Eocene Thermal Maximum, probably helping to draw down a large portion of carbon r...
nature.com
New Paper! www.nature.com/articles/s43...
Revisiting the greatness of Earth’s great oxidation - Communications Earth & Environment
Advancements in modeling, proxy integration, geochronology, and clarity on the nature of Paleoproterozoic glaciations are essential to improve understanding of the Great Oxidation Event, according to ...
nature.com
Kick off your morning with a very nice write up in Mongabay about our recent Lac Mai paper. @johansix.bsky.social @jordonhemingway.bsky.social @saegroupethz.bsky.social
John Cannon@john-cannon.bsky.social · 4mo agoA recent study reveals that lakes in the Congo Basin are releasing ancient carbon from peatlands. Read more in my latest for @mongabay.com
Two major humic lakes in the Congo Basin are emitting ancient carbon from nearby peatlands into the atmosphere, reports a study in Nature Geoscience. These findings challenge the prevailing understanding that CO2 emissions from pristine humic lakes are derived from modern, rapidly cycling carbon. 🌍🧪
Millennial-aged peat carbon outgassed by large humic lakes in the Congo Basin - Nature Geoscience
Two major humic lakes in the Congo Basin emit ancient carbon from nearby peatlands into the atmosphere, as shown by the isotopic signatures of their carbon pools.
go.nature.com
Excited to share some new #clumped #isotope bond reordering results just published in EPSL and led by Nico Kueter & Nathan Looser @eth-eaps.bsky.social. Come for the high-precisino reordering kinetics, stay for the beautiful FTIR maps! www.sciencedirect.com/science/arti...
Precise kinetic parameters for thermal resetting of clumped isotope signatures in biogenic and abiogenic calcites
Carbonate clumped isotope (∆47) thermometry is a powerful tool to reconstruct paleotemperatures. However, episodes of heating or cooling can alter ori…
sciencedirect.com
Reminder, three more days to apply for our *two* fully funded PhD positions on tropical African biogeochemistry! @eth-eaps.bsky.social @usyseth.bsky.social @draketw.bsky.social @johansix.bsky.social
Jordon Hemingway@jordonhemingway.bsky.social · 6mo agoVery 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!
Very happy to see our @agu.org @jgrbiogeo.bsky.social paper on greenhouse gas emissions from Congo lakes published! Following up from @draketw.bsky.social's companion paper last week. With @johansix.bsky.social et al. agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Constraining Greenhouse Gas Cycling and Emissions in Africa's Largest Humic Lake
Lake Mai Ndombe is supersaturated in CO2 ${\text{CO}}_{2}$, CH4 ${\text{CH}}_{4}$, and N2O ${\mathrm{N}}_{2}\mathrm{O}$, with outgassing fluxes of 375 ± 32 Gg C yr−1, 623 ± 136 Mg C yr−1, and 223 ...
agupubs.onlinelibrary.wiley.com
A big reason we have an oxygenated atmosphere is because there is a lot more pyrite burial than pyrite oxidation (which wasn't always the case). 🧪⚒️ Link: www.nature.com/articles/s41...
Two major humic lakes in the Congo Basin are emitting ancient carbon from nearby peatlands into the atmosphere, reports a study in Nature Geoscience. These findings challenge the prevailing understanding that CO2 emissions from pristine humic lakes are derived from modern, rapidly cycling carbon. 🌍🧪
Millennial-aged peat carbon outgassed by large humic lakes in the Congo Basin - Nature Geoscience
Two major humic lakes in the Congo Basin emit ancient carbon from nearby peatlands into the atmosphere, as shown by the isotopic signatures of their carbon pools.
go.nature.com
In case our short communications paper was too long 😆, you can now read Research Briefing about our recent study showing aged carbon outgassing from Congo lakes! rdcu.be/e6W6l @jordonhemingway.bsky.social @johansix.bsky.social @usyseth.bsky.social @eth-eaps.bsky.social @natgeosci.nature.com
Congo’s largest humic lakes emit ancient peat carbon
Nature Geoscience - We revealed that carbon dioxide emissions from the Congo Basin’s largest humic lakes partially originate from millennia-old peat. This discovery identifies a pathway...
rdcu.be
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...
🚜🌍 Accelerated rock weathering shows promise for long term CO₂ removal — but major uncertainties remain. #ClimateScience #CarbonRemoval #ERW With @thuenen.de and @ethz.ch @mschiedung.bsky.social @eth-eaps.bsky.social usys.ethz.ch/en/news-even...
Does rock powder help protect the climate?
Accelerated rock weathering on farmland is seen as a promising way to sequester carbon dioxide in the long term. However, researchers at the Thünen Institute and ETH Zurich urge caution: before rock p...
usys.ethz.ch
A research team, led by @johansix.bsky.social and @jordonhemingway.bsky.social, has discovered that large blackwater lakes in the peatlands of the central Congo Basin are releasing ancient carbon. In the future, these lakes could become a significant sources of methane and impact the global climate.
ETH Zurich@ethz.ch · 5mo agoOver thousands of years, the swamps and peatlands in the Congo Basin have accumulated and stored huge amounts of carbon. A research team led by ETH Zurich has now shown that large lakes in this ecosystem are releasing long-buried carbon. ethz.ch/en/news-and-...
And with a nice write-up by @ethz.ch news: usys.ethz.ch/en/news-even...
Does rock powder help protect the climate?
Accelerated rock weathering on farmland is seen as a promising way to sequester carbon dioxide in the long term. However, researchers at the Thünen Institute and ETH Zurich urge caution: before rock p...
usys.ethz.ch
Jordon Hemingway@jordonhemingway.bsky.social · 5mo ago🚨 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
🚨 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
And with a nice write-up by @ethz.ch news: ethz.ch/en/news-and-... @eth-eaps.bsky.social @usyseth.bsky.social
Peatland lakes in the Congo Basin release carbon that is thousands of years old
Over thousands of years, the swamps and peatlands in the Congo Basin have accumulated and stored huge amounts of carbon. A research team led by ETH Zurich has now shown that large lakes in this ecosys...
ethz.ch
Travis Drake@draketw.bsky.social · 5mo agoNew paper alert! 🚨 Our new study shows that massive lakes in the Congo Basin are outgassing millennial-aged carbon. This challenges the idea that lake CO₂ only comes from modern vegetation. www.nature.com/articles/s41... Thread below! 🧵👇
Here is what we found: -Nearly 40% of the inorganic carbon in Lakes Mai Ndombe and Tumba comes from ancient peat. -Microbes likely respire this old carbon deep underground, sending it to the lakes to vent like a "chimney" -It's yet unknown what this means in terms of Congo's peat stability
New paper alert! 🚨 Our new study shows that massive lakes in the Congo Basin are outgassing millennial-aged carbon. This challenges the idea that lake CO₂ only comes from modern vegetation. www.nature.com/articles/s41... Thread below! 🧵👇
Millennial-aged peat carbon outgassed by large humic lakes in the Congo Basin - Nature Geoscience
Two major humic lakes in the Congo Basin emit ancient carbon from nearby peatlands into the atmosphere, as shown by the isotopic signatures of their carbon pools.
nature.com
USA: "Man, we're sooooo good at making ourselves a nationalist backwater global pariah that nobody wants to visit or move to or do business with or interact with. We're the best at it! Can't get better than us!" Switzerland: "hold my beer" www.theguardian.com/world/2026/f...
Switzerland to vote on far-right proposal to cap population at 10 million
Referendum on immigration limit could threaten EU agreements and cripple economy, say Swiss businesses
theguardian.com
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!
How and where does life originate in the universe? Three new National Centres of #Competence in #Research led by ETH Zurich and partner universities study life’s origins, precise measurement, and how Switzerland handles growing #ClimateExtremes.
Three new Research Centres of Competence for ETH Zurich
How and where does life originate in the universe? How can physical phenomena be measured with the highest precision? How is Switzerland handling increasing climate and weather extremes? Three new Nat...
ethz.ch
🚨Paper alert!🚨 Very excited to finally see the thesis work of my ~first~ M.Sc. student published---and, to boot, it's in a special edition dedicated to the late, great Judy McKenzie! onlinelibrary.wiley.com/doi/10.1002/...
Hydrothermal dolomitisation of a deep‐water bioherm isolated in a non‐dolomitised intraplatform basin within the Norian Dolomia Principale (Southern Alps, northern Italy)
We propose that one of the largest known bioconstructions (the Monte Zenone bioherm) in the Southern Alps, northern Italy, and its growth on a tilted and drowned platform block of the Norian Dolomia ...
onlinelibrary.wiley.com
Finally got my hands on @peterbrannen.bsky.social's (now not so new) book here in Europe. Excited to dive into Peter's (and some other friends') telling of Earth history!
Excellent opportunity for anybody looking to do a PhD on reverse weathering---Greg is an awesome person and great supervisor! Spread the word: jobs.ethz.ch/job/view/JOP...
Doctoral position in isotope geochemistry for marine authigenic clay formation and the silicon cycle
jobs.ethz.ch
⚒️ Article: Modern pyrite burial in seafloor sediments exceeds pyrite oxidation on land, indicating the sulphur cycle is out of balance and acts to increase atmospheric oxygen levels www.nature.com/articles/s41...
Sedimentary conditions drive modern pyrite burial flux to exceed oxidation - Nature Geoscience
Modern pyrite burial in seafloor sediments exceeds pyrite oxidation on land, indicating that the sulfur cycle is out of balance, and acts to increase atmospheric oxygen levels, according to a diagenet...
nature.com
Interesting model-driven paper out of @jordonhemingway.bsky.social's group on the relative rates of pyrite burial and oxidation and how both relate to what's going on with organic carbon. 🧪⚒️
Jordon Hemingway@jordonhemingway.bsky.social · 8mo ago🚨 First #SEELab @eth-eaps.bsky.social PhD student-led paper is now officially online! We show that sedimentary conditions regulate formation rate and isotope composition of #pyrite, and that this process currently out-paces oxidation on land, leading to O2 accumulation www.nature.com/articles/s41...
