Bio:
Climate scientist at #DMI.
Coordinator of PolarPortal (lots of up-to-date Arctic data) and ROPEWALK (huge Danish logbook digitization project together with @rigsarkivet).
#ClimateChange in the Arctic, in particular #Greenland and in Africa, in particular #Tanzania.
Modelling subsea #permafrost.
Conveying science to the public: #IKFF #IKlimaforskernesFodspor #BestilEnForsker
with dual citizenship 
and 
and (occasionally) tooting in three languages.
A serious geologic issue is occurring in Canada and Alaska.
https://www.youtube.com/watch?v=Lxfpgqn6NOo
#environment #climatechange #river #permafrost #melting #emergency #canada #alaska #unitedstates #usa
Groundwater in the Arctic is delivering more carbon into the ocean than was previously known
A relatively small amount of #groundwater trickling through #Alaska's #tundra is releasing huge quantities of #carbon into the #ocean, where it can contribute to #ClimateChange, according to new research out of The University of Texas at Austin.
As the tundra continues to thaw and the flow of submarine groundwater ratchets up, Demir said that the outflow of carbon from shore to sea could effectively make ocean surface waters a carbon source to the #atmosphere. The #CO2 released via groundwater could also contribute to ocean #acidification.
"The #Arctic coast is changing in front of our eyes," said Bayani Cardenas, a co-author of this study and professor at the Jackson School's Department of Earth and Planetary Sciences. "As #permafrost thaws, it turns into coastal and submarine #aquifers. Even without this thawing, our studies are among the first to directly show the existence of such aquifers."
https://phys.org/news/2025-01-groundwater-arctic-carbon-ocean-previously.html
Permafrost Thaw Threatens Up To 3 Million People In The Arctic
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https://phys.org/news/2025-01-permafrost-threatens-million-people-arctic.html <-- shared technical article
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https://doi.org/10.1038/s43247-024-01883-w <-- shared paper
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#GIS #spatial #mapping #arctic #climatechange #permafrost #thaw #communities #impacts #humanimpacts #infrastructure #risk #hazard #northernhemisphere #global #threat #Sweden #greenland #alaska #yukon #russia #canada #norway #landuse #melting #ecosystems #livelihoods #firstnation #indigenous #inhabitants #population #cost #economics #policymaking #planning #management #spatialanalysis #adapation #transportation #supplies #waterquality #watersecurity #foodsecurity #disease #contaminants #multifactor #analysis #MFA #social #culture #cultural #transdisciplinary #ground #temperature #physicalprocesses #consequences #mobility #supplies #biogeochemical #water #hydrology #engineeringgeology #erosion #ecosystem #FATE
After Millennia As CO₂ Sink, More Than One-Third Of Arctic-Boreal Region Is Now A Source
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https://phys.org/news/2025-01-millennia-arctic-boreal-region-source.html <-- shared technical article
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https://doi.org/10.1038/s41558-024-02234-5 <-- shared paper
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#GIS #spatial #mapping #arctic #boreal #carbonsink #carbonsource #permafrost #melting #tundra #wetlands #forest #co2 #CO₂ #spatialanalysis #climatechange #fire #wildfire #carbon #carbonfootprint #carbondioxide #sampling #monitoring #model #modeling #spatialanalysis #spatiotemporal
Este es el cráter Batagaika, en la República de Sakha (Rusia), el más grande causado por el colapso del suelo tras el deshielo del permafrost.
Su historia marca la famosa sinergia entre cambio climático y actividad humana en la que una desencadena el potencial de la otra.
¿Cómo? 
Explicación 
Melting #permafrost is bad, mmkay.
Iron and sulfite minerals are now leaching into once pristine arctic rivers, acidifying them. One the sulfur acidifies the water it begins to leach toxic compounds and elements into the rivers. It was more commonly seen in rivers where abandoned mines were nearby.
North America's Ongoing, Ignored Disaster
Happy to see another excellent news story about our recent Senate study of the the impact of climate change on transportation infrastructure. This story from the Nunatsiaq News looks specifically at the challenges faced by Nunavut. https://nunatsiaq.com/stories/article/thawing-permafrost-threatens-runways-in-the-north-senate-report/ #Nunavut #SenateofCanada #TRCM #cdnpoli #permafrost #NunatsiaqNews #climatechange
Muss die Schweiz Alpendörfer aufgeben?
ach, das ist doch in der Schweiz.
Das ist doch weit weg, was geht es die C-Parteien an.
/s
Die Wissenschaft hat schon vor längerem davor gewarnt das einige Teile von Europa in absehbarer Zeit für den Menschen unbewohnbar werden.
Siehe , Spanien und jetzt auch in der Alpenregion.
Aber der Fritze findet Windräder ja hässlich.
https://www.tagesschau.de/ausland/europa/schweiz-erderwaermung-geroelllawinen-100.html
Permafrost - A Central Hub For Permafrost Information In Canada.
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https://geo.ca/communities/permafrost/?hsid=f464bd17-b45b-4beb-ad6b-1f55f6ccd489
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“As #GeographyAwarenessWeek approaches, it's the perfect time to highlight Canada’s permafrost - a crucial component of our northern ecosystems that plays a key role in shaping both our environment and infrastructure.
[You are] invite[d] to discover GEO.ca’s new Permafrost Community space, a go-to resource for anyone interested in learning more about permafrost thawing and its impacts across Canada…”
#Permafrost #GeoDiscovery #ClimateChange #GIS #spatial #mapping #arctic #spatialanalysis #spatiotemporal #geography #canada #spatiotemporal #northern #ecosystems #infrastructure #change #damage #carbon #carbonstorage #environment #foodweb #melt #melting
Ökologin #Christina_Biasi entschlüsselt, unter welchen Bedingungen #Organismen dazu beitragen, dass #Permafrost-Böden #Lachgas ausstoßen. Ihre Forschung könnte entscheidend für #Klimaschutz sein
https://globalmagazin.com/unbekannter-klimafaktor-aus-dem-permafrost/
F: fwf
Landmark 20-year study of climate change impact on permafrost forests #climate #ClimateChange #ClimateCrisis #permafrost https://www.sciencedaily.com/releases/2024/10/241031130738.htm
#Climat La fonte du #permafrost déclenche une réaction en chaîne imprévue... et c'est pas une bonne nouvelle.
https://www.futura-sciences.com/planete/actualites/environnement-personne-ne-avait-vu-venir-fonte-permafrost-declenche-reaction-chaine-imprevue-116622/
#GES
But a new study published Wed in the journal #Nature shows that blowing past #climate goals is more dangerous than it originally seemed. Even if temperatures come back down to 1.5°C, the authors found, many climate impacts — like rising #SeaLevels & thawing #permafrost — will persist for centuries to millennia.
#ClimateCrisis #ClimateScience #GlobalWarming #ExtremeWeather #VoteBlue
https://www.nature.com/articles/s41586-024-08020-9
Thawing Arctic #permafrost holds enormous amounts of carbon. The Q-Arctic project is investigating whether this carbon will be released into the atmosphere and exacerbate global warming. Currently, the Q-Arctic team is holding their annual assembly at our institute in order to discuss the progress. The ERC-funded project is a collaboration between the #MPIM, the MPI for Biogeochemistry (@MPI_BGC) and the Austrian company b.geos. 
Find out more: https://q-arctic.net
New study
Abrupt increase in Arctic-Subarctic wildfires caused by future #permafrostthaw
,"... we find that projected rapid #permafrost thaw leads to massive #soil drying, surface warming, and reduction of relative humidity over the #Arctic-Subarctic region. These combined processes lead to nonlinear late-21st-century regime shifts in the coupled soil-hydrology system and rapid intensification of #wildfires in western #Siberia and #Canada."
I'm a #Quaternary geologist with a PhD from the #uwmadison studying #dust, #glaciers, #caves, #soil, #permafrost and other topics related to climate and landscape evolution in the mountains.
Let’s get personal, shall we? I’ve been here a while now, and as I’m feeling quite comfortable at Mastodon, I’d like to share a bit more about myself beyond my passion for the climate and the environment.
To begin with, I’m a male, he/him, hetero, strongly supporting LGBTQ rights. I’m a baby boomer, born at 312 PPM 
, a United Statesian, although I lived in Europe (mostly Hungary) for several years, and traveled extensively for work before retiring in 2012. I’ve never been good at sustaining long-term romantic relationships, and I’ve finally settled into comfortable singlehood.
I like to say I’m made of contrasts.
For example, I’m rather funny and quite personable, but I don’t enjoy small talk and I hate parties. I currently live in the Bible Belt, but I’m an outspoken atheist. While I can easily fit into most social situations, I don’t feel comfortable around large groups and prefer being alone most of the time. I live near two huge military bases, but I detest the USA’s militaristic, troop-worshiping culture. I’m almost always cheerful, which masks my deeply felt existential nihilism. I’m a neat freak, but also rather lazy, preferring fun over work.
I’ll finish up with some hashtags to add flavor...
Philippe 
Ⓥ 
