#earthsystemscience — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #earthsystemscience, aggregated by home.social.
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Early-career researcher at #EGU26 Wednesday:
PC5 – Rumbles from the deep: On Alaskan megatsunamis, active submarine volcanoes, and the seismoacoustic signals of blue whales.
06 May 2026, 14:00 CEST
**Eva Goblot **, Dalhousie University, Halifax, Nova Scotia, Canada
Christian Hübscher , University of Hamburg
Benedikt Haimerl , University of Hamburg
Stephen Hicks , University College London
#DalhousieUniversity #BlueWhales #Seismology #EarthSystemScience
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Neue Studie zu Klima-Kipppunkten: Das Erdsystem könnte näher an kritischen Schwellen stehen als bisher gedacht. 🌍
#Astrobiology #Habitability #Exoplanets #EarthSystemScience #ClimateChange #TippingPoints #PlanetaryBoundaries #FutureOfEarth -
Kipppunkte im Klimasystem: Steuert die Erde auf einen „Treibhaus-Pfad“ zu?
https://dauckchristian.home.blog/2026/02/15/kipppunkte-im-klimasystem-steuert-die-erde-auf-einen-treibhaus-pfad-zu/ #ClimateChange #Klimawandel #TippingPoints #EarthSystemScience #GlobalWarming #PlanetaryBoundaries #AMOC #Biodiversity #Astrobiology #SpaceScience #Sustainability #FutureOfEarth -
In the 1960s and 1970s, Syukuro Manabe pioneered methods to model the Earth’s atmosphere. In 2021, he received the Nobel Prize in Physics for this work, which is often cited as foundational to modern climate science. Quanta Magazine
https://www.quantamagazine.org/how-climate-scientists-saw-the-future-before-it-arrived-20250915
#SyukuroManabe #ClimateScience #ClimateChange #GlobalWarming #AtmosphericModeling #NobelPrize #ClimateResearch #ClimateAction #EarthScience #EnvironmentalImpact #GreenhouseEffect #ClimateModeling #ClimateCrisis #Sustainability #EarthSystemScience #ClimateChangeAwareness #EnvironmentalScience #ClimateInnovation #IPCC #ClimateSolutions #ClimatePolicy #SustainableFuture #CarbonFootprint #GreenTech #EnvironmentalProtection #ScientificBreakthroughs #EarthObservations #ClimateSkeptics #FutureOfEarth #COP30
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In the 1960s and 1970s, Syukuro Manabe pioneered methods to model the Earth’s atmosphere. In 2021, he received the Nobel Prize in Physics for this work, which is often cited as foundational to modern climate science. Quanta Magazine
https://www.quantamagazine.org/how-climate-scientists-saw-the-future-before-it-arrived-20250915
#SyukuroManabe #ClimateScience #ClimateChange #GlobalWarming #AtmosphericModeling #NobelPrize #ClimateResearch #ClimateAction #EarthScience #EnvironmentalImpact #GreenhouseEffect #ClimateModeling #ClimateCrisis #Sustainability #EarthSystemScience #ClimateChangeAwareness #EnvironmentalScience #ClimateInnovation #IPCC #ClimateSolutions #ClimatePolicy #SustainableFuture #CarbonFootprint #GreenTech #EnvironmentalProtection #ScientificBreakthroughs #EarthObservations #ClimateSkeptics #FutureOfEarth #COP30
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In the 1960s and 1970s, Syukuro Manabe pioneered methods to model the Earth’s atmosphere. In 2021, he received the Nobel Prize in Physics for this work, which is often cited as foundational to modern climate science. Quanta Magazine
https://www.quantamagazine.org/how-climate-scientists-saw-the-future-before-it-arrived-20250915
#SyukuroManabe #ClimateScience #ClimateChange #GlobalWarming #AtmosphericModeling #NobelPrize #ClimateResearch #ClimateAction #EarthScience #EnvironmentalImpact #GreenhouseEffect #ClimateModeling #ClimateCrisis #Sustainability #EarthSystemScience #ClimateChangeAwareness #EnvironmentalScience #ClimateInnovation #IPCC #ClimateSolutions #ClimatePolicy #SustainableFuture #CarbonFootprint #GreenTech #EnvironmentalProtection #ScientificBreakthroughs #EarthObservations #ClimateSkeptics #FutureOfEarth #COP30
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In the 1960s and 1970s, Syukuro Manabe pioneered methods to model the Earth’s atmosphere. In 2021, he received the Nobel Prize in Physics for this work, which is often cited as foundational to modern climate science. Quanta Magazine
https://www.quantamagazine.org/how-climate-scientists-saw-the-future-before-it-arrived-20250915
#SyukuroManabe #ClimateScience #ClimateChange #GlobalWarming #AtmosphericModeling #NobelPrize #ClimateResearch #ClimateAction #EarthScience #EnvironmentalImpact #GreenhouseEffect #ClimateModeling #ClimateCrisis #Sustainability #EarthSystemScience #ClimateChangeAwareness #EnvironmentalScience #ClimateInnovation #IPCC #ClimateSolutions #ClimatePolicy #SustainableFuture #CarbonFootprint #GreenTech #EnvironmentalProtection #ScientificBreakthroughs #EarthObservations #ClimateSkeptics #FutureOfEarth #COP30
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In the 1960s and 1970s, Syukuro Manabe pioneered methods to model the Earth’s atmosphere. In 2021, he received the Nobel Prize in Physics for this work, which is often cited as foundational to modern climate science. Quanta Magazine
https://www.quantamagazine.org/how-climate-scientists-saw-the-future-before-it-arrived-20250915
#SyukuroManabe #ClimateScience #ClimateChange #GlobalWarming #AtmosphericModeling #NobelPrize #ClimateResearch #ClimateAction #EarthScience #EnvironmentalImpact #GreenhouseEffect #ClimateModeling #ClimateCrisis #Sustainability #EarthSystemScience #ClimateChangeAwareness #EnvironmentalScience #ClimateInnovation #IPCC #ClimateSolutions #ClimatePolicy #SustainableFuture #CarbonFootprint #GreenTech #EnvironmentalProtection #ScientificBreakthroughs #EarthObservations #ClimateSkeptics #FutureOfEarth #COP30
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🚀 Our #nextGEMS overview paper is out!
After three years of intense collaboration, we’re thrilled to share a comprehensive look at what the nextGEMS project has achieved: a milestone for #ClimateModelling 🌐
For the first time ever, nextGEMS has produced multidecadal #climate simulations with kilometer-scale resolution across the ocean, land, and atmosphere, using the ICON and IFS-FESOM Earth system models. 🌍
🔹 The project unfolded over four development cycles, each releasing new configurations of ICON and IFS-FESOM.
🔹 These were rigorously evaluated at our hackathons, bringing together climate scientists, software engineers, HPC experts, and users from sectors like energy and agriculture.
🔹 By the end of the fourth cycle, we successfully ran 30-year simulations (2020–2049) at an impressive ~500 simulated days per day on the Levante supercomputer at German Climate Computing Center | DKRZ |.
🔹 Simulations reached ~5 km resolution in the ocean and ~10 km on land and in the atmosphere, offering unprecedented detail.Furthermore, the simulations form a core building block for the Climate Change Adaptation Digital Twin in the Destination Earth (DestinE) initiative. In other words, nextGEMS' work paves the way for the next generation of European climate research. 🇪🇺
👉 Read the full overview paper here: https://gmd.copernicus.org/articles/18/7735/2025/
#HPC #EarthSystemScience #DestinationEarth #ClimateResearch #SciCom
#CINEA _EU -
🚀 Our #nextGEMS overview paper is out!
After three years of intense collaboration, we’re thrilled to share a comprehensive look at what the nextGEMS project has achieved: a milestone for #ClimateModelling 🌐
For the first time ever, nextGEMS has produced multidecadal #climate simulations with kilometer-scale resolution across the ocean, land, and atmosphere, using the ICON and IFS-FESOM Earth system models. 🌍
🔹 The project unfolded over four development cycles, each releasing new configurations of ICON and IFS-FESOM.
🔹 These were rigorously evaluated at our hackathons, bringing together climate scientists, software engineers, HPC experts, and users from sectors like energy and agriculture.
🔹 By the end of the fourth cycle, we successfully ran 30-year simulations (2020–2049) at an impressive ~500 simulated days per day on the Levante supercomputer at German Climate Computing Center | DKRZ |.
🔹 Simulations reached ~5 km resolution in the ocean and ~10 km on land and in the atmosphere, offering unprecedented detail.Furthermore, the simulations form a core building block for the Climate Change Adaptation Digital Twin in the Destination Earth (DestinE) initiative. In other words, nextGEMS' work paves the way for the next generation of European climate research. 🇪🇺
👉 Read the full overview paper here: https://gmd.copernicus.org/articles/18/7735/2025/
#HPC #EarthSystemScience #DestinationEarth #ClimateResearch #SciCom
#CINEA _EU -
🚀 Our #nextGEMS overview paper is out!
After three years of intense collaboration, we’re thrilled to share a comprehensive look at what the nextGEMS project has achieved: a milestone for #ClimateModelling 🌐
For the first time ever, nextGEMS has produced multidecadal #climate simulations with kilometer-scale resolution across the ocean, land, and atmosphere, using the ICON and IFS-FESOM Earth system models. 🌍
🔹 The project unfolded over four development cycles, each releasing new configurations of ICON and IFS-FESOM.
🔹 These were rigorously evaluated at our hackathons, bringing together climate scientists, software engineers, HPC experts, and users from sectors like energy and agriculture.
🔹 By the end of the fourth cycle, we successfully ran 30-year simulations (2020–2049) at an impressive ~500 simulated days per day on the Levante supercomputer at German Climate Computing Center | DKRZ |.
🔹 Simulations reached ~5 km resolution in the ocean and ~10 km on land and in the atmosphere, offering unprecedented detail.Furthermore, the simulations form a core building block for the Climate Change Adaptation Digital Twin in the Destination Earth (DestinE) initiative. In other words, nextGEMS' work paves the way for the next generation of European climate research. 🇪🇺
👉 Read the full overview paper here: https://gmd.copernicus.org/articles/18/7735/2025/
#HPC #EarthSystemScience #DestinationEarth #ClimateResearch #SciCom
#CINEA _EU -
🚀 Our #nextGEMS overview paper is out!
After three years of intense collaboration, we’re thrilled to share a comprehensive look at what the nextGEMS project has achieved: a milestone for #ClimateModelling 🌐
For the first time ever, nextGEMS has produced multidecadal #climate simulations with kilometer-scale resolution across the ocean, land, and atmosphere, using the ICON and IFS-FESOM Earth system models. 🌍
🔹 The project unfolded over four development cycles, each releasing new configurations of ICON and IFS-FESOM.
🔹 These were rigorously evaluated at our hackathons, bringing together climate scientists, software engineers, HPC experts, and users from sectors like energy and agriculture.
🔹 By the end of the fourth cycle, we successfully ran 30-year simulations (2020–2049) at an impressive ~500 simulated days per day on the Levante supercomputer at German Climate Computing Center | DKRZ |.
🔹 Simulations reached ~5 km resolution in the ocean and ~10 km on land and in the atmosphere, offering unprecedented detail.Furthermore, the simulations form a core building block for the Climate Change Adaptation Digital Twin in the Destination Earth (DestinE) initiative. In other words, nextGEMS' work paves the way for the next generation of European climate research. 🇪🇺
👉 Read the full overview paper here: https://gmd.copernicus.org/articles/18/7735/2025/
#HPC #EarthSystemScience #DestinationEarth #ClimateResearch #SciCom
#CINEA _EU -
On rocks, from Mineral Cup’s admin, @mikamckinnon
She writes:
#Hematite is a key mineral in banded iron formations. And BIFs are my BFFsVery well done! BIFs make their appearance around minute five.
https://www.ted.com/talks/mika_mckinnon_do_you_have_a_rock
Thanks for the heads up
@vickyveritas
@vickyveritas.bsky.social#MinCup25 #BandedIronFormation #GreatOxidationEvent #Stromatolites #EarthHistory #EarthSystemScience
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🌦️ “The small-scale matters for the large-scale!” - C. Hohenegger
When the Storms & Land group began their #nextGEMS journey, their mission was clear: find out how explicitly resolving #storms and land-surface features at km-scale changes our understanding of #ClimateVariability.
Over the past four years, under the leadership of Cathy Hohenegger (MPI-M), the team explored how precipitation and #temperature patterns over land are shaped by fine-scale features, such as rivers and soil moisture, and how these effects can differ dramatically from coarser #ClimateSimulations.
The results? Surprising, and a reminder that small details can have global consequences.
▶️ Watch the full video, titled "Small-scale resolution reshapes our understanding of land-climate dynamics", in our Media Library (Project outcomes) to hear Cathy explain the discoveries and their significance.
#ClimateModeling #H2020 #EarthSystemScience #StormResolvingModels
@cinea_EU -
🌍 Pushing #ClimateModeling to the Next Level
What happens when you run global climate #simulations at the kilometre scale for multiple years
In our latest blog post, we share insights from a landmark #nextGEMS study using ECMWF’s Integrated Forecasting System coupled to high-resolution ocean–sea ice models.
These simulations capture fine-scale processes—from mesoscale #OceanEddies to #UrbanHeat patterns—that coarser models can’t resolve, offering a more realistic picture of our climate system. Along the way, the team tackled key challenges, from water and #EnergyConservation to improving the simulation of #ExtremePrecipitation and polar sea ice leads.
💡 The results point towards more accurate, actionable climate information—but also highlight the huge computational demands of this frontier.
📖 Read the blog post on our website and comment below to get the link to the original publication by Thomas Rackow et al., 2025.
#H2020 #HighResolutionModels #EarthSystemScience #StormResolvingModels
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Are you in #EarthScience and interested in improving #AcademicPublishing options in your field? I am preparing a proposal for a PCI Eart Sciences, which would be part of https://peercommunityin.org/ family of journals. The digital infrastructure and brand are there, i have benefited as an author and as an editor from PCI Paleo and I can attest to the high quality and robustness of this platform and process. Being involved doesn’t actually require committing a lot of your time, as it takes years to establish a new journal. At this point it is more about launching it and making it visible, so I am primarily looking for mid-to senior-career collaborators who can help steer publications towards this venue. Especially if you’re in the field of #EnvironmentalScience, #Tectonics, #Petrology, #Mineralogy, #PhysicalGeography, #Hydrogeology, #EarthSystemScience and #Climate you are most welcome as these fields are underrepresented in my network. You can contribute by becoming an editor, pledging a submission, or helping recruit a BigName in your field (maybe that’s you?). Please have a look at https://peercommunityin.org/ or get in touch. #OpenAccess #OpenScience #geoscience #OpenPeerReview
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A thought-provoking talk by Dr. Jobst Heitzig of Potsdam Institute for Climate Impact Research on building a framework for combining physical processes of the Earth system with human interactions (politics, public opinion, etc.). Objects can be gridded data, groups/communities, or individuals; they can be part of natural systems, human-environment interactions, or cultural constructs. Sometimes several at the same time.
#pik_climate #McGillUniversity #EarthSystemScience #ComplexityScience
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🌍 Are you working in #EarthSystemSciences? Help improve how we explore scientific terminologies! Take a quick survey to tell us what info you'd like to see in the #TIB Terminology Service.
🔍 Explore the ESS collection first: https://terminology.nfdi4earth.de
📝 Survey link: https://tib.eu/umfragen/Terminologies_ESS_Collection
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Congratulations to Dr. Pascale Daoust, who successfully defended, "Ocean Acidification: Insights from the Behaviour of Ancient and Modern Carbonates", supervised by Al Mucci and Galen Halverson.
The work involved field and laboratory studies of the Paleocene-Eocene Thermal Maximum section near Campo, Spain.
The figure shows the depositional environments at the time; from Daoust et al, submitted, modified from Pujalte et al. (2014)
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Congratulations to Dr. Pascale Daoust, who successfully defended, "Ocean Acidification: Insights from the Behaviour of Ancient and Modern Carbonates", supervised by Al Mucci and Galen Halverson.
The work involved field and laboratory studies of the Paleocene-Eocene Thermal Maximum section near Campo, Spain.
The figure shows the depositional environments at the time; from Daoust et al, submitted, modified from Pujalte et al. (2014)
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Congratulations to Dr. Pascale Daoust, who successfully defended, "Ocean Acidification: Insights from the Behaviour of Ancient and Modern Carbonates", supervised by Al Mucci and Galen Halverson.
The work involved field and laboratory studies of the Paleocene-Eocene Thermal Maximum section near Campo, Spain.
The figure shows the depositional environments at the time; from Daoust et al, submitted, modified from Pujalte et al. (2014)
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Congratulations to Dr. Pascale Daoust, who successfully defended, "Ocean Acidification: Insights from the Behaviour of Ancient and Modern Carbonates", supervised by Al Mucci and Galen Halverson.
The work involved field and laboratory studies of the Paleocene-Eocene Thermal Maximum section near Campo, Spain.
The figure shows the depositional environments at the time; from Daoust et al, submitted, modified from Pujalte et al. (2014)
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Congratulations to Dr. Pascale Daoust, who successfully defended, "Ocean Acidification: Insights from the Behaviour of Ancient and Modern Carbonates", supervised by Al Mucci and Galen Halverson.
The work involved field and laboratory studies of the Paleocene-Eocene Thermal Maximum section near Campo, Spain.
The figure shows the depositional environments at the time; from Daoust et al, submitted, modified from Pujalte et al. (2014)
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Listen to whale calls recorded on land-based seismometers!: https://seismicsoundscapes.myportfolio.com/lower-st-lawrence-seaway
The study was just published in Seismica @weareseismica: http://doi.org/10.26443/seismica.v3i2.1153
by lead author Eva Goblot, an #EarthSystemScience graduate from #McGillUniversity#Montreal #Quebec #ISMER #UCAR #GSC #Whales #BlueWhales #FinWhales #Seismology
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Collin Ward (#WHOI) spoke to us today about the lessons learned from the 2010 Deepwater Horizon oil spill in the Gulf of Mexico: particularly the speed and extent of photochemical oxidation of crude oil. This is what turns the oil into sticky emulsified globs on the beaches.
#McGillUniversity #OilSpill #Remediation #EarthSystemScience -
Great post by alum Joshua Wasserlauf on the Canadian Museum of Nature site: Using stable isotopes to estimate of the migration distances of young and mature hadrosaurs.
H/T: https://mastodon.online/@globalmuseum/112028566119763651
#CarletonUniversity #UOttawa #McGillUniversity #EarthSystemScience #Dinosaurs #StableIsotopes #CanadianMuseumOfNature
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Monday's early-career presenters at #AGU23 in San Francisco, California.
*Aube Gourdeau*
T11D-0188 An Ongoing Search for Active Faults in the Western Quebec Seismic Zone, Eastern Canada
Mid-day posters, Monday*Jillian Kendrick*
V13C-0134 Chloritoid as an Indicator of Metasomatic Processes in Archean Greenstone Belts
Evening posters, Monday#McGillUniversity #GeoScience #Seismology #Archean #Geology #EarthSystemScience
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Monday's early-career presenters at #AGU23 in San Francisco, California.
*Aube Gourdeau*
T11D-0188 An Ongoing Search for Active Faults in the Western Quebec Seismic Zone, Eastern Canada
Mid-day posters, Monday*Jillian Kendrick*
V13C-0134 Chloritoid as an Indicator of Metasomatic Processes in Archean Greenstone Belts
Evening posters, Monday#McGillUniversity #GeoScience #Seismology #Archean #Geology #EarthSystemScience
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Monday's early-career presenters at #AGU23 in San Francisco, California.
*Aube Gourdeau*
T11D-0188 An Ongoing Search for Active Faults in the Western Quebec Seismic Zone, Eastern Canada
Mid-day posters, Monday*Jillian Kendrick*
V13C-0134 Chloritoid as an Indicator of Metasomatic Processes in Archean Greenstone Belts
Evening posters, Monday#McGillUniversity #GeoScience #Seismology #Archean #Geology #EarthSystemScience
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Monday's early-career presenters at #AGU23 in San Francisco, California.
*Aube Gourdeau*
T11D-0188 An Ongoing Search for Active Faults in the Western Quebec Seismic Zone, Eastern Canada
Mid-day posters, Monday*Jillian Kendrick*
V13C-0134 Chloritoid as an Indicator of Metasomatic Processes in Archean Greenstone Belts
Evening posters, Monday#McGillUniversity #GeoScience #Seismology #Archean #Geology #EarthSystemScience
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Monday's early-career presenters at #AGU23 in San Francisco, California.
*Aube Gourdeau*
T11D-0188 An Ongoing Search for Active Faults in the Western Quebec Seismic Zone, Eastern Canada
Mid-day posters, Monday*Jillian Kendrick*
V13C-0134 Chloritoid as an Indicator of Metasomatic Processes in Archean Greenstone Belts
Evening posters, Monday#McGillUniversity #GeoScience #Seismology #Archean #Geology #EarthSystemScience
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A very productive hour spent learning about Earth's primary productivity (organic molecules produced) over time via a talk by Peter Crockford, Carleton University.
Fun fact: every carbon atom has likely be cycled through an organism ~100 times over the last 3+ billion years!
Crockford et al., The geologic history of primary productivity, Current Biology (2023), https://doi.org/10.1016/ j.cub.2023.09.040
#CarletonU #McGillUniversity #Photosynthesis #EarthSystemScience #Proterozoic #Geology
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Talk this afternoon by Kathryn Smith, Dalhousie University at #GSAConnects:
Creating groundwater-sourced thermal refuges in rivers to adapt to a warming world
191: T21. Environmental and Engineering Geology Division II
Tues., 17 Oct. 2023, 1:35–1:50 p.m.
https://gsa.confex.com/gsa/2023AM/meetingapp.cgi/Paper/392393Smith and coauthor Barret Kurylyk added cold pumped groundwater to a Nova Scotia stream to aid spawning salmon and trout.
#GeoSociety #Salmon #DalhousieUniversity #EarthSystemScience -
Monday and Wednesday early-career presenters at #GSAConnects in #Pittsburgh
*Katie Maloney*
Early Tonian Macroalgal Ecosystems from Northwestern Canada
(125-14) Monday 5:15 pm*Charlotte Spruzen*
Complex Neoproterozoic Microbial Reefal Frameworks in the Callison Lake formation of Yukon
(223-9) *TODAY* 10:25 am#McGillUniversity #EarthSystemScience #GSA2023 #GeoScience #GSAConnects2023
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#UtrechtUniversity #EarthSystemScience #Geology
One more Friday early-career presenter at the #Goldschmidt2023 conference #Lyon:*Alissa J Kotowski* (Utrecht University)
Low-temperature plate boundary serpentinization post-dates subduction initiation and facilitates obduction of an Appalachian ophioliteSession 4fO2 09:30 CEST
Field work at Mont Albert, Gaspé Peninsula, #Quebec done while at #McGillUniversity. #Ordovician #TaconicOrogeny
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#McGillUniversity #EarthSystemScience #Geology
Friday's early-career presenters at the #Goldschmidt2023 conference #Lyon:*Matthew Tarling*
Deciphering the combined structural and mineralogical record of serpentinite fault rocks
Session 4fO2 09:15 CEST*Jillian Kendrick*
Field observations, petrography, geochemistry, and phase equilibrium modelling: The four pillars of petrological investigations of crustal differentiation
Session 4dO1 11:15 CEST -
#McGillUniversity #EarthSystemScience #Geology
Monday & Tuesday's early-career presenters at the #Goldschmidt2023 conference #Lyon (late notice):*Kathryn Rico* now at Arizona State U
Combining trace metal geochemistry and experimental microbiology to explore the role of dissimilatory Fe(III) reducing bacteria in precursor Banded Iron Formations*Maxwell Lechte*
Palaeoredox and environmental constraints on early eukaryote ecosystems: insights from the Greater McArthur Basin, northern Australia -
Excellent talk last week by Hannah Mark, now at Woods Hole on documenting thin lithosphere and low viscosities essential to model ice distribution over time in the southern Andes. Figure shows seismic velocities, with red corresponding to slow (hot) mantle. More info: https://essopenarchive.org/doi/full/10.1002/essoar.10510075.1
#McGillUniversity #WHOI #EarthSystemScience #Seismology #Lithosphere
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Another group of #EarthSystemScience #UpGoer5 Change that happens quickly and continues to grow. The growing that happens begins to happen faster and faster than it did at the start. The number of people in the world is a good way to understand this. It grows faster and faster than it did before. [K. A.]
#ExponentialGrowth #McGillUniversity -
The view from Stac Pollaidh, Assynt, Scottish Highlands. Made of mid- to late-Proterozoic Torridonian arkose. #FieldFriday #EarthSystemScience #Scotland
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Katie Maloney spoke about the 950 million year old algae fossils from the Wernecke Mountains, Yukon Territory, Canada. She's reconstructing the biosphere and the spread of eukaryotes at a time before shells or any other hard parts evolved.
#McGillUniversity #EarthSystemScience #FossilFriday #Proterozoic #Yukon
