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Professor Chuixiang (Tree) Yi at City University of New York

@cyi12.bsky.social
13K followers 10K following 56 posts

Earth resilience, tipping behavior, nonlinear thinking, stability analysis, climate change, photosynthesis, soil respiration, tree mortality, Fulbright Scholar

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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 07/09/2026
🌱 New paper in Global Change Biology! Soil Moisture Thresholds for the Temperature Sensitivity of Ecosystem Respiration Across 142 FLUXNET sites, Q₁₀ rises with soil moisture, peaks at an ecosystem-specific threshold, then declines. A new perspective on carbon–climate feedbacks 10.1111/gcb.71066
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 16/06/2026
One novelty of this work is bridging observations and resilience-potential theory. Figure 3 shows how the potential landscape changes under increasing forcing. Special thanks to Prof. Lu Zhou for leading the observation-theory bridge. #Resilience #ArcticSeaIce
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 16/06/2026
As external forcing increases, the ice-covered state loses stability through a saddle-node bifurcation. Reversing the transition requires much stronger cooling, revealing the irreversibility associated with hysteresis. #ClimateScience #NonlinearDynamics
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 16/06/2026
Our paper "Stochastic resilience of Arctic sea ice" has been accepted by npj Climate and Atmospheric Science! We present a resilience-potential framework bridging Arctic sea ice observations and nonlinear tipping theory. DOI: 10.1038/s41612-026-01455-z #Arctic #SeaIce
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 16/06/2026
Can resilience be observed? We present a resilience-potential framework that bridges Arctic sea ice observations and nonlinear tipping theory. #Arctic #SeaIce #TippingPoints
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 12/05/2026
not sure
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 12/05/2026
not sure
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 12/05/2026
We’re launching the 2026 International Summer School on Complex Systems in Earth System 🌍 Explore resilience, tipping points, and climate dynamics through lectures, discussions, and hands-on work. 📍 Tsinghua University 📅 Aug 3–15, 2026 Deadline: June 15
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Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Katharine Hayhoe @katharinehayhoe.com · 17/12/2025
“NCAR has played a greater role in advancing weather prediction & atmospheric modeling than perhaps any other single entity in the world,” says @weatherwest.bsky.social Dismantling NCAR would be “like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.” KH
nbcnews.com
Trump administration plans to break up largest federal climate research center
Russ Vought, director of the White House Office of Management and Budget, said the National Science Foundation "will be breaking up" the National Center for Atmospheric Research in Colorado.
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Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 17/12/2025
The Trump regime wants to dismantle a world leading climate research center. Why? Because the US has become a petrostate where the government has been captured by fossil fuel interests. They’re calling climate science “green new scam research”, in full denial of reality. 🤯
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Erle Ellis @erleellis.bsky.social · 17/12/2025
A shot of ignorance that will be heard around the world. www.nytimes.com/2025/12/17/c...
nytimes.com
Trump Administration Plans to Break Up Premier Weather and Climate Research Center
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Sabine Hossenfelder @hossenfelder.bsky.social · 07/10/2025
The 2025 Physics Nobel Prize was awarded for macroscopic quantum tunneling. What is this and what is it good for? I have a brief summary. www.youtube.com/watch?v=Rgjz...
youtube.com
The 2025 Physics Nobel Prize: Macroscopic Quantum Tunneling
YouTube video by Sabine Hossenfelder
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IOP Publishing @ioppublishing.bsky.social · 07/10/2025
#OnThisDate Niels Bohr was born! This Danish theoretical physicist received the Nobel Prize in 1922 for his foundational contributions to understanding #quantumtheory. Celebrate by exploring one of his lesser-known papers, which had a massive impact on #quantummechanics: ow.ly/xCbW50X5S5z
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Nature Portfolio @natureportfolio.nature.com · 07/10/2025
The Nobel Prize in Physics 2025 was awarded to John Clarke, Michel H. Devoret and John M. Martinis "for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit." This Collection celebrates the contributions by the awardees. ⚛️ 🧪
go.nature.com
Nobel Prize in Physics 2025
The Nobel Prize in Physics 2025 was awarded to John Clarke, Michel H. Devoret and John M. Martinis "for the discovery of macroscopic quantum mechanical ...
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The Keeling Curve @keelingcurve.bsky.social · 07/10/2025
424.09 parts per million (ppm) CO2 in air 06-Oct-2025 keelingcurve.ucsd.edu
keelingcurve.ucsd.edu
The Keeling Curve
The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.
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Berkeley Lab @berkeleylab.lbl.gov · 07/10/2025
🏅 Former Berkeley Lab senior scientist John Clarke has won the 2025 Nobel Prize in Physics. His research on quantum tunneling in electric circuits paved the way for today’s quantum computers and sensors. 🧠 This brings LBNL’s Nobel count to 17! @nobelprize.bsky.social @uofcalifornia.bsky.social
newscenter.lbl.gov
Former Berkeley Lab Scientist John Clarke Wins 2025 Nobel Prize in Physics
The Nobel Prize committee honored former Berkeley Lab scientist John Clarke for research in quantum tunneling in electric circuits.
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Science News @scinews.bsky.social · 08/10/2025
The Royal Swedish Academy of Sciences has decided to award the 2025 #NobelPrize in Chemistry to Susumu Kitagawa, Richard Robson and Omar M. Yaghi “for the development of metal–organic frameworks.”
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Future of UK Treescapes @uktreescapes.bsky.social · 15/07/2025
We are now part of the Global Ecology starter pack 3. bsky.app/starter-pack...
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Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Manlio De Domenico @manlius.bsky.social · 25/06/2025
Model-free is never free, at best is hidden. Many methods are powerful, and most of them work very well. Within the basin of their assumptions. 🧪 #ComplexityThoughts #ComplexSystems open.substack.com/pub/manlius/...
open.substack.com
“Model-free“ analysis of a complex system. Part II
Or: when you don't even see what your model is
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Global Ecology 🌐 @global-ecology.bsky.social · 19/05/2025
🚀 Global Ecology feed Digest #19, May 12-19, 32 posts ! ✨For the lazy (yes we are) & friends who don't like social media (yes they can) but might benefit from Global Ecology feed, here’s a online DIGEST crafted with 💚 for you to share! 🌈 👉 globalecologybs.github.io/feeddigest.g... 🌐🌍🦤🦑🪴🍁🧪
globalecologybs.github.io
bluesky Global Ecology Feed Digest #19
Curated digest of the bluesky Global Ecology feed on biodiversity, ecosystems & conservation at large scales. Terrestrial, freswater & marine realms.
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 22/04/2025
Happy Earth Day!
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Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Manlio De Domenico @manlius.bsky.social · 08/04/2025
New insights into how hierarchical brain organization influences cognitive functions, could inform strategies for targeted neuromodulation therapies. #ComplexNetworks #Neuroscience www.nature.com/articles/s41...
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CUNY Graduate Center @thegraduatecenter.bsky.social · 03/04/2025
From climate shifts to economic collapse, tipping points can change everything. Prof. Chuixiang Yi and his team call for a clearer way to understand resilience — and help us see the warning signs before it’s too late www.gc.cuny.edu/news/rethink...
a glacier
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Nina Buchmann @nbuchmann.bsky.social · 01/04/2025
Interested to work on a less-studied greenhouse gas, namely COS exchange of a forest with the atmosphere? We have an open 4-yr PhD position in our international group. at ETH Zurich in Switzerland. 🧪 More details here: 🧪 jobs.ethz.ch/job/view/JOP...
jobs.ethz.ch
Doctoral student in ecosystem COS exchange
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Manlio De Domenico @manlius.bsky.social · 01/04/2025
“Where is everybody?” Over lunch, Enrico Fermi posed a question that still haunts astrophysics (and, let me say, #ComplexSystems): if life is common in the universe, why haven't we seen evidence of it? The Drake Equation sets the stage for this paradox. Pic: NASA 1/
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Sergi Valverde @svalver.bsky.social · 01/04/2025
New study highlights the active role of humans in the hunter-farming transition. Varying population growth and mortality rates, driven by competition between hunter-gatherers and farmers, shaped agricultural development in these regions. @andrejpaleo.bsky.social www.pnas.org/doi/epub/10....
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 28/03/2025
How Michaelis–Menten kinetics can represent ecosystem-scale respiration: scale and applicability We explore when MM works — and when it doesn’t — in capturing ecosystem respiration across scales. iopscience.iop.org/article/10.1... #ClimateScience #Ecophysiology #SystemsThinking
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Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Erle Ellis @erleellis.bsky.social · 26/03/2025
Promote urban biodiversity to benefit people & nature! 🌍😀🐛 @natrevbiodiv.bsky.social doi.org/10.1038/s443...
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Agristok @agristok.bsky.social · 25/03/2025
28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay in France 28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay in France: The selection of doctoral candidates for ABIES grants will take…
agristok.net
28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay in France
28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay in France: The selection of doctoral candidates for ABIES grants will take place from June 2th to 4th. Grants are for a 36 months doctoral contract. The monthly gross salary is 2200€ for the 1st year. Candidates should directly contact the thesis supervisor of the project of interest to get more information about the projection and the application process.
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Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Emilio Vilanova @evilanova.bsky.social · 20/03/2025
www.nature.com/articles/s44... “…we describe the reforestation approaches and forest restoration methods currently used and how they affect biodiversity; summarize the knowledge gaps of biodiversity outcomes of forest restoration; and describe the emerging opportunities for future restoration…”
nature.com
Moving biodiversity from an afterthought to a key outcome of forest restoration - Nature Reviews Biodiversity
Forest restoration has the potential to result in substantial biodiversity gains alongside climate and human well-being benefits; however, biodiversity has historically been neglected in restoration e...
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Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Wonder of Science @wonderofscience.bsky.social · 21/03/2025
A tree burning inside after a lightning strike. Credit: Glenn Ratcliff
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Joachim Frank @joachim123.bsky.social · 20/03/2025
Exactly. What are those Republican congressmen and senators talking about behind closed doors? What are they telling their children? How do they see their future? How can they not wake up in the morning and find themselves transformed into a giant beetle?
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Professor Chuixiang (Tree) Yi at City University of New York @cyi12.bsky.social · 21/03/2025
Our perspective paper on resilience and tipping points is now out! We outline key principles to guide future research on these critical topics, from dynamical systems to real-world applications. iopscience.iop.org/article/10.1... #Resilience #TippingPoints #Ecology
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Blai Vidiella @blaividiella.bsky.social · 19/03/2025
What are the implications of considering #TippingPoints in #restoration strategies? Thanks to the organizers of the #RamonMargalefColloquia & @ricardsole.bsky.social for the opportunity to give this lecture! Some topics were: #ClimateChange #WarningSignals #DynamicalGhosts #Antrhopocene
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Jacob Aron @jjaron.bsky.social · 14/03/2025
I'm launching a new monthly maths column, and what better day to do it than Pi Day? Read on to learn what an ancient Egyptian scribe called "Directions for Knowing All Dark Things", why Newton was ashamed by pi, and how our best estimate was wrong for a century www.newscientist.com/article/2471...
newscientist.com
Why the long history of calculating pi will never be completed
Building the full value of pi has been a project thousands of years in the making, but just how much of this infinite number do we actually need, asks our maths columnist Jacob Aron
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Simon Kuestenmacher @simongerman600.bsky.social · 13/02/2025
Continental divides separate one drainage basin from another. Here is a gorgeous view of the continental divides in North America. Source: buff.ly/3vKHwq7
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Manlio De Domenico @manlius.bsky.social · 13/02/2025
🚨 Excited for the latest paper from the lab, led by Zhang & Arsham. Can we coarse-grain a #ComplexNetwork while preserving macroscopic network flows? Surprisingly, the answer is positive, and we have shown it by means of StatPhys + Machine Learning. 🧵 1/ www.nature.com/articles/s41...
nature.com
Coarse-graining network flow through statistical physics and machine learning - Nature Communications
Information dynamics are key in complex systems. The authors apply graph neural networks to group components for coarse-graining networks, reducing computational complexity. Their approach preserves i...
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Ricard Solé @ricardsole.bsky.social · 05/02/2025
How do we test the (Gaia) theory of planetary self-regulation (Lovelock-Margulis)? We just started our experimental implementation on bioreactors using #synbio to bring planetary scale to the Lab.Exciting day! @vmaull.bsky.social @ftmaestre.bsky.social @vdlorenzo.bsky.social @jordiplam.bsky.social
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Nature Portfolio @natureportfolio.nature.com · 14/02/2025
The highly pathogenic avian influenza H5N1 is an emerging and unexpected threat to many wild animal species. A Comment article in Nature Reviews Biodiversity argues that international collaboration and information-sharing is essential to enable worldwide actions. 🧪
go.nature.com
The threat of avian influenza H5N1 looms over global biodiversity - Nature Reviews Biodiversity
The highly pathogenic avian influenza H5N1 is an emerging and unexpected threat to many wild animal species, which has implications for ecological processes, ecosystem services and conservation of threatened species. International collaboration and information-sharing is essential for surveillance, early diagnosis and the provision of financial and technical instruments to enable worldwide actions.
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Rosemary Wardley 🏳️‍🌈 @rosemarywardley.bsky.social · 13/02/2025
National Geographic is hiring a Cartography intern this summer! This is a fantastic opportunity to get real-world experience creating maps for print and digital with our team here at NatGeo! Please share with your geography and cartography students! jobs.disneycareers.com/job/washingt...
jobs.disneycareers.com
National Geographic Cartographic Intern, Summer 2025 at DISNEY
Learn more about and apply for the National Geographic Cartographic Intern, Summer 2025 job at DISNEY here.
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Bioclimatology Göttingen @bioclimatology.bsky.social · 12/02/2025
New Paper Alert. Justus van Ramshorst et al. compared lower-cost eddy covariance (LC-EC) with conventional EC (CON-EC). "Our results showed that LC-EC has the potential to measure CO2 and H2O fluxes at approximately 25% of the cost of a CON-EC system". Find out more at: doi.org/10.5194/amt-...
doi.org
Lower-cost eddy covariance for CO2 and H2O fluxes over grassland and agroforestry
Abstract. Eddy covariance (EC) measurements can provide direct and non-invasive ecosystem measurements of the exchange of energy, water (H2O) and carbon dioxide (CO2). However, conventional eddy covar...
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Itai Yanai @itaiyanai.bsky.social · 13/02/2025
Countries should be investing more money in science, not less. It’s pretty clear that many young minds will not be interested in becoming scientists if the salaries are not good and the future of this occupation is not certain.
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Ricard Solé @ricardsole.bsky.social · 12/02/2025
What is complexity? What kind of approach is needed to define it? Here's a 1977 paper by Robert Rosen, one of the pioneers of System Science, discussing how information, error and scale are central to this problem: tandfonline.com/doi/pdf/10.1... @manlius.bsky.social @svalver.bsky.social
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Manlio De Domenico @manlius.bsky.social · 12/02/2025
To me that means that matter is not enough, that we need processes to include in a minimal definition. The pics shared by @ricard_sole provide a nice example for the difference between a Thermodynamic system far from equilibrium (left) and at equilibrium (right). #ComplexSystems 🧪🦠
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Jacob T. Levy @jacobtlevy.bsky.social · 12/02/2025
finance.yahoo.com/news/the-cos...
finance.yahoo.com
Eggs, coffee, and orange juice: Why the cost of key breakfast items are rising
The cost of scrambled eggs with OJ is going up.
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Science News @scinews.bsky.social · 13/02/2025
Three keys to unlocking successful manuscripts "A full understanding of the points of scientific papers is necessary and important for students and young researchers to prepare high-quality manuscripts." PDF Download www.cell.com/matter/pdf/S...
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Itai Yanai @itaiyanai.bsky.social · 11/02/2025
Science is under threat
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Ed Hawkins @edhawkins.org · 12/02/2025
Want to do a PhD in climate, with a focus on using machine learning to recover millions of lost weather observations and so better reconstruct climatic changes over the past century? Open to students from UK and Ireland, funded through @climatecocentre.bsky.social. www.findaphd.com/phds/project...
findaphd.com
Using machine learning to help reconstruct changes in extreme rainfall over British & Irish Isles at University of Reading on FindAPhD.com
PhD Project - Using machine learning to help reconstruct changes in extreme rainfall over British & Irish Isles at University of Reading, listed on FindAPhD.com
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Physics In History @physinhistory.bsky.social · 10/02/2025
Physics is like sex: sure, it may give some practical results, but that's not why we do it. - Dick Feynman
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Simon Kuestenmacher @simongerman600.bsky.social · 10/02/2025
Simple but very easy on the eyes! Lovely elevation map of South America by @hellovizart
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