🌍 Permafrost thawing isn’t only bad news. It speeds up phosphorus cycling, boosting plant growth and CO₂ uptake 🌱 A reminder that Earth’s feedbacks are complex and surprising.
#Permafrost #CarbonCycle #SoilNutrients #Microbes #ClimateFeedbacks #TippingPoints
#Permafrost #CarbonCycle #SoilNutrients #Microbes #ClimateFeedbacks #TippingPoints
Permafrost study finds abrupt thaw accelerates soil phosphorus cycling, offsetting carbon release
Permafrost thaw can stimulate the release of soil carbon, triggering a positive carbon-climate feedback that may be mediated by changes in soil phosphorus (P) availability.
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October 25, 2025 at 8:31 AM
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[5/5] Pour Lauriane Quéléver et Zoé Brasseur, l’étude illustre les boucles de rétroaction entre biodiversité et climat. Toute perturbation écologique dans les pôles peut avoir des conséquences à l’échelle mondiale, notamment sur la montée des eaux. #geography #cryosphere #climatefeedbacks
Penguin guano is an important source of climate-relevant aerosol particles in Antarctica - Communications Earth & Environment
Penguin colonies emit gaseous ammonia that enhances new particle formation processes in Antarctica, according to online observations of gaseous ammonia and aerosol particles from a coastal site in Ant...
www.nature.com
May 23, 2025 at 6:53 AM
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For more information and to delve deeper into climate feedbacks, you can visit some of these helpful resources: scied.ucar.edu/learning-zon... , scientistswarning.forestry.oregonstate.edu/climate-feed..., and www.ipcc.ch/report/ar6/w...
#funfactfriday #climate #climatefeedbacks #tippingpoints
#funfactfriday #climate #climatefeedbacks #tippingpoints
Climate Feedback Loops and Tipping Points | Center for Science EducationClimate Feedback Loops and Tipping Points | Center for Science Education
Feedback loops play an important role in interactions among parts of the climate system. Positive feedback loops can sometimes result in irreversible change as climate conditions cross a tipping point...
scied.ucar.edu
October 17, 2025 at 6:25 PM
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[2/5] Près de la base Marambio, les chercheurs ont mesuré jusqu’à 13,5 ppb d’ammoniac quand le vent soufflait depuis une colonie de 60.000 manchots. C’est 1.000 fois plus que la valeur de référence, selon les données recueillies entre janvier et mars 2023. #geography #cryosphere #climatefeedbacks
May 23, 2025 at 6:53 AM
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[4/5] Les chercheurs soulignent l’urgence de poursuivre les relevés pour suivre les effets des fientes sur le climat régional. Ces données sont cruciales car les écosystèmes antarctiques évoluent vite sous l’effet du réchauffement global. #geography #cryosphere #climatefeedbacks
May 23, 2025 at 6:53 AM
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In a recently published paper in Frontiers in Climate, Kageyama M et al. discuss "Lessons from paleoclimates for recent and future climate change: opportunities and insights".
Access the paper: pastglobalchanges.org/publications...
#paleoclimate #paleoclimatedata #climatefeedbacks #futureclimate
Access the paper: pastglobalchanges.org/publications...
#paleoclimate #paleoclimatedata #climatefeedbacks #futureclimate
January 29, 2025 at 11:51 AM
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#climatefeedbacks
#GWP
#AGW is causing alpine permafrost to absorb fewer greenhouse gases. The opposite happens in the Arctic.
In models, "[2°C] warming caused drying of alpine permafrost, the CO2 sink weakened but the CH4 sink increased." The opposite happened in "relatively wet Arctic
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#GWP
#AGW is causing alpine permafrost to absorb fewer greenhouse gases. The opposite happens in the Arctic.
In models, "[2°C] warming caused drying of alpine permafrost, the CO2 sink weakened but the CH4 sink increased." The opposite happened in "relatively wet Arctic
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Climate-carbon feedback tradeoff between Arctic and alpine permafrost under warming
Warming weakens net uptake of greenhouse gas in alpine permafrost ecosystems but strengthens that in Arctic permafrost ecosystems.
www.science.org
September 18, 2025 at 11:15 AM
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🌱 What’s up with carbon sinks, wildfires & ecosystem feedbacks in a changing climate?
We’ve got you at #EGU25. Models, remote sensing & field data combined.
Talks by Ilyina, Behncke, Nieradzik, Gomarasca & co. 🌍
#CarbonScience #ClimateFeedbacks #EGU25
We’ve got you at #EGU25. Models, remote sensing & field data combined.
Talks by Ilyina, Behncke, Nieradzik, Gomarasca & co. 🌍
#CarbonScience #ClimateFeedbacks #EGU25
April 24, 2025 at 12:02 PM
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[3/5] Ce gaz, combiné au soufre produit par le phytoplancton, permet la formation d’aérosols, qui génèrent ensuite des nuages. Ces derniers pourraient réduire la température de surface, mais les effets sur la calotte glaciaire restent à confirmer. #geography #cryosphere #climatefeedbacks
May 23, 2025 at 6:53 AM
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[1/5] Une étude menée par Matthew Boyer (Univ. d’Helsinki) montre que les fientes de manchots Adélie émettent de l’ammoniac, un gaz qui favorise la formation de nuages. Ce phénomène pourrait avoir un effet rafraîchissant local sur la péninsule antarctique. #geography #cryosphere #climatefeedbacks
La crotte de manchot peut-elle sauver le climat de l’Antarctique ?
Une étude scientifique publiée jeudi 22 mai révèle que le gaz émis par les fientes d’oiseaux marins participe à la formation de nuages au niveau de la péninsule. Un phénomène au pouvoir potentiellemen...
www.liberation.fr
May 23, 2025 at 6:53 AM
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