Lightnews — Scholar-powered news

Reposted by Pierre Gentine

Adam Sobel @adamsobel.bsky.social · 21d

We're hiring! We have an open search for an Assistant Professor in physics of the ocean and/or atmosphere in Columbia's Dept. of Earth and Environmental Sciences. Please circulate this information to good candidates, and apply yourself if you are one! Ad & link to apply: apply.interfolio.com/173819

Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

apply.interfolio.com

1 45 63

Reposted by Pierre Gentine

IOPP Machine Learning and AI @iopp-mlresearch.bsky.social · Aug 20

#MachineLearningEarth is here for you!

MLEarth brings you fully accessible research at the intersection of machine learning and earth and #EnvironmentalSciences.

Discover more from our Editor-in-Chief @pierregentine.bsky.social: ow.ly/EGG350WIQvq

#earthscience #openaccess #machinelearning

2 3

Reposted by Pierre Gentine

Weiwei Zhan @weiweizhan.bsky.social · Jul 11

Interested in how plant intrinsic water-use efficiency (iWUE) responds to rising CO2? Our new paper shows that CO2-enhanced iWUE is mainly driven by reduced canopy conductance, while stimulation of ecosystem photosynthesis is less detectable given current data length. www.nature.com/articles/s41...

Reduced water loss rather than increased photosynthesis controls CO2-enhanced water-use efficiency - Nature Ecology & Evolution

A machine learning approach using long-term observations of eddy covariance finds that the increase in plant intrinsic water-use efficiency under higher CO2 levels, across diverse ecosystems, is drive...

www.nature.com

1 11 31

Reposted by Pierre Gentine

Weiwei Zhan @weiweizhan.bsky.social · Jul 11

Also excited to see our work accompanied by a View & Commentary by Dr. Jürgen Knauer. We sincerely appreciate the thoughtful perspective! www.nature.com/articles/s41...

Water-use efficiency driven by water savings - Nature Ecology & Evolution

Analysis of land–atmosphere water and CO2 fluxes suggests that reduced water use by vegetation, rather than increased carbon uptake, is the driving factor behind the well-documented increase in vegeta...

www.nature.com

1 1 3

Pierre Gentine @pierregentine.bsky.social · Jul 12

while ecosystem photosynthesis increase is less detectable based on current record length. Led by a great student Weiwei Zhan.
Humbled to have so many awesome, kind and creative scientists in my group 🙏.

1

Pierre Gentine @pierregentine.bsky.social · Jul 12

Delighted to share our new paper "Reduced water loss rather than increased photosynthesis controls CO2-enhanced water-use efficiency:
www.nature.com/articles/s41... , which demonstrates the strongly detectable impact of CO2 fertilization on canopy and stomata conductance,

This link will take you to a page that’s not on LinkedIn

lnkd.in

1 3 8

Pierre Gentine @pierregentine.bsky.social · Jul 8

Soil moisture matters most when and where it does i.e. in transitional conditions (neither too dry nor too wet). Led by a great former postdoc Jiangong Liu, now assistant professor at Hong Kong University of Science and Technology

2

Pierre Gentine @pierregentine.bsky.social · Jul 8

Excited to share our new paper "When and where soil dryness matters to ecosystem photosynthesis" www.nature.com/articles/s41..., which resolves a long-standing debate as to whether soil moisture or atmospheric dryness dominates water stress response.

When and where soil dryness matters to ecosystem photosynthesis - Nature Plants

Using a causality-guided explainable AI framework, Liu et al. show soil moisture dominates vapour pressure deficit in shaping global photosynthesis during water-limited conditions.

www.nature.com

1 2 8

Reposted by Pierre Gentine

Nature Geoscience @natgeosci.nature.com · Jun 16

⚒️ Article: Prolonged hot-dry conditions induced by Rossby waves reduce northern ecosystem productivity

@jiangong-liu.bsky.social @kornhuber.bsky.social @pierregentine.bsky.social‬

www.nature.com/articles/s41...

Northern ecosystem productivity reduced by Rossby-wave-driven hot–dry conditions - Nature Geoscience

Satellite observations suggest that prolonged hot–dry conditions induced by Rossby waves in the jet stream reduce ecosystem productivity, providing insights into the potential impacts of a future warm...

www.nature.com

2 9

Pierre Gentine @pierregentine.bsky.social · Jun 17

Excited to share our new Nature Geoscience paper on how persistent Rossby waves patterns are triggering simultaneous hot-dry extremes across western Europe, Asia, and the U.S., severely reducing vegetation productivity and carbon uptake.
www.nature.com/articles/s41...

Northern ecosystem productivity reduced by Rossby-wave-driven hot–dry conditions - Nature Geoscience

Satellite observations suggest that prolonged hot–dry conditions induced by Rossby waves in the jet stream reduce ecosystem productivity, providing insights into the potential impacts of a future warm...

www.nature.com

8 22

Reposted by Pierre Gentine

Jesse D. Jenkins @jessedjenkins.com · Apr 9

The National Science Foundation slashed the number of graduate research fellowships awarded each year to the most promising young researchers in half. This is how we make America great? By defunding support for our best and brightest young minds? This is pure idiocy www.nature.com/articles/d41...

NSF slashes prestigious PhD fellowship awards by half

US National Science Foundation announces lowest number of Graduate Research Fellowship Programme recipients in 15 years.

www.nature.com

8 82 210

Pierre Gentine @pierregentine.bsky.social · Apr 8

So delighted to share our new paper, my little Covid project brought to a whole new level by Francesco Immorlano www.pnas.org/doi/10.1073/.... We demonstrate how future projections can be refined using transfer learning (fine tuning). This refines our estimates of global warming.

PNAS

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

www.pnas.org

3 14

Pierre Gentine @pierregentine.bsky.social · Mar 22

There had been many issues in the handling of the crisis on the Columbia campus last year and this year, yet this agreement is a first in US academic history, ending academic independence and freedom apnews.com/article/colu...

Under threat from Trump, Columbia University agrees to policy changes

Columbia University agreed to implement a host of policy changes, including overhauling its rules for protests and conducting an immediate review of its Middle Eastern studies department.

apnews.com

2 14

Pierre Gentine @pierregentine.bsky.social · Mar 8

www.nytimes.com/2025/03/07/n... - Columbia is being dramatically cut and I hope that the place I have called home for 15 years with many fantastic colleagues will survive this attack - it is clearly not related to antisemitism but Columbia had been defined as the number one target in academia

Trump Administration Cancels $400 Million in Federal Funds to Columbia University

The Trump administration blamed the university’s failure to protect Jewish students from harassment during protests last year over the war in Gaza.

www.nytimes.com

6 12

Pierre Gentine @pierregentine.bsky.social · Mar 6

It is terrible that we will not actively mitigate in the US and will strongly affect our future. However the term adaptation cannot be considered a soothing term. We need both to adapt and mitigate given the long time scales in the system and time to reach net zero.

2

Reposted by Pierre Gentine

Valérie Masson-Delmotte @valmasdel.bsky.social · Mar 3

"The universities control the knowledge in our society (...) We have to agressivly attack the universities (...). Fundamental lies that feminism is liberating (...) There is wisdom in what Nixon said, the professors are the enemy "

bryanalexander.org/politics/the...

www.youtube.com/watch?v=0FR6...

J.D. Vance | The Universities are the Enemy | National Conservatism Conference II

YouTube video by National Conservatism

www.youtube.com

85 480 670

Reposted by Pierre Gentine

Valérie Masson-Delmotte @valmasdel.bsky.social · Feb 22

www.cnn.com/2025/02/21/c...

Trump bars federal scientists from working on pivotal global climate report | CNN

The Trump administration told US government scientists working on a vital global climate report to stop their work – the president’s latest move to withdraw the US from global climate action and resea...

www.cnn.com

7 96 160

Pierre Gentine @pierregentine.bsky.social · Feb 21

Excited to share some great collaboration on a new data assimilation framework with transformer encoding arxiv.org/pdf/2502.02884. Exciting times for data assimilation with ML

arxiv.org

2 6

Pierre Gentine @pierregentine.bsky.social · Feb 18

Please consider registering for this great conference events.columbia.edu/go/E3BAI

AI and Global Change Biology Symposium

<p>Degradation of natural ecosystems, climate change, and biodiversity loss are some of society's most vexing problems. This one-day symposium, sponsored by the Departments of Ecology, Evolution a...

events.columbia.edu

3 2

Reposted by Pierre Gentine

Daniel Swain @weatherwest.bsky.social · Feb 14

Related to mass federal firings today: If anyone out there in private sector has a need for a highly-qualified PhD-level wildfire risk modeler (or MS/PHD-level meteorologist), available immediately, please do reach out via email or DM! (Not for me, but trying to help others out.)

9 110 410

Reposted by Pierre Gentine

WHO @who.int · Feb 11

Today is International Day of Women & Girls in Science.

Marie Curie, the first woman to win a Nobel Prize. Her contributions have left an indelible mark on the world of science & health & continue to inspire generations of scientists & innovators. 🔬 #WomenInScience #WomenInSTEM

Nothing in life is to be feared, it is only to be understood. Marie Curie, Physicist and chemist.

57 1.9K 4.8K

Pierre Gentine @pierregentine.bsky.social · Feb 8

www.statnews.com/2025/02/07/n... this will have very negative consequences on universities and research in the US. It is not clear if universities will have the capacity to survive with those cuts

NIH plans to slash support for indirect research costs, sending shockwaves through science

The NIH said Friday night that it would slash support for indirect costs on all existing and future grants to 15%

www.statnews.com

1 6

Reposted by Pierre Gentine

Valérie Masson-Delmotte @valmasdel.bsky.social · Feb 4

Must read

www.nature.com/articles/d41...

Exclusive: how NSF is scouring research grants for violations of Trump’s orders

The US National Science Foundation has unfrozen grant funding, but it continues to scrutinize research projects, sowing turmoil.

www.nature.com

2 31 68

Reposted by Pierre Gentine

N. Thuerey's research group at TUM @thuereygroup.bsky.social · Jan 28

Regarding our 'Diffusion Graph Net' paper at #ICLR'25 openreview.net/forum?id=uKZ..., it's also worth mentioning that the full source code is already online github.com/tum-pbs/dgn4... , complete with notebooks, flow matching, and the full hierarchical diffusion graph net architecture 😁

1 8

Pierre Gentine @pierregentine.bsky.social · Jan 18

Congratulations! So well deserved!

3