Julia K. Green

Calling all #CMIP users! The abstract deadline for the CMIP 2026 Community Workshop in Kyoto, Japan this coming March is next week! With Lina Teckentrup, Alex Winkler, @rosieafisher.bsky.social & David Lawrence I will be convening a session on Global land carbon cycle dynamics. Consider submitting!

Check out this new paper led by @ngocnb.bsky.social on the importance of rain pulse events on carbon fluxes in drylands 👇
@trevorkeenan.bsky.social @juliakgreen.bsky.social

Widespread underestimation of rain-induced soil carbon emissions from global drylands - Nature Geoscience Eddy-covariance observations suggest that rain pulses over global drylands drive substantial soil carbon emissions, which are underestimated in current measurement and modelling approaches.

Rain-induced carbon losses in drylands contribute largely to the interannual variability of the land carbon sink, but do current partitioning methods and models capture them? Check out our new paper led by @ngocnb.bsky.social & @trevorkeenan.bsky.social to learn more:

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

Limited Regulation of Canopy Water Use Efficiency by Stomatal Behavior Under Drought Propagation We examined the trajectories, interdependencies and drivers of multidimensional WUE metrics and their components (gross primary production (GPP), evapotranspiration, transpiration (T), and canopy con....

Interested in how #drought influences vegetation water use? Led by Feng Li & Zheng Fu, we address: 1) How does water use efficiency (WUE) and its components change during drought? (2) What regulates WUE? (3) How do these components reciprocally influence WUE?

onlinelibrary.wiley.com/doi/10.1111/...

Promotional graphic for the AGU25 conference session titled "B008 - Advances in Understanding Water-Energy-Carbon Interactions." It announces a call for abstracts due July 30, 2025, at 23:59 EDT. The central question posed is: "How do water-energy-carbon interactions shape terrestrial biosphere responses to global change?" Key topics include coupling of water-energy-carbon cycles, bridging scales and processes, climate change sensitivities and impacts, and applications for climate resilience. The image features headshots and affiliations of invited speakers Julia Green (University of Arizona) and Gabe Kooperman (University of Georgia), and conveners YanLan Liu (Ohio State), Justin Mankin (Dartmouth), Dan Gianotti (MIT), Flavio Lehner (Cornell), and Xiangtao Xu (Cornell). The background shows a scenic natural landscape with trees.

Please consider joining our #AGU session on beautifully complex Water-Energy-Carbon interactions with a broad scope from theory to applied science.

Invited talks by Julia Green @juliakgreen.bsky.social and Gabe Kooperman.

AGU ad for session B029 on vegetation stress

Still wondering which session to submit your #AGU abstract to? If you research vegetation stress, look no further. With invited guests Yanlan Liu & Bill Hammond, this is sure to be a great session!

Submit your abstracts here:

agu.confex.com/agu/agu25/b/...

Pervasive but biome-dependent relationship between fragmentation and resilience in forests - Nature Ecology & Evolution Human-driven forest fragmentation could have major impacts on ecosystem functioning. This global analysis shows that the relationship between fragmentation and vegetation resilience in forests may dif...

How does fragmentation impact the resilience of forests? Well-- the answer depends on the biome! Check out our new paper published online this week in @natecoevo.nature.com to find out more:

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

*Study led by Yongxian Su & Chaoqun Zhang

taking soil cores

Griffy Lake Field Site

Getting to know/re-meet each other

Presentations and discussion

Last week I attended the PSINet Workshop (psinetrcn.github.io) at Indiana University. What a great way to build excitement and develop research ideas to use this new resource of plant water potential measurements . Stay tuned as data becomes available and new research is published!

International students file legal challenges over widespread US visa revocations Several international students who have had their visas revoked in recent weeks have filed lawsuits against the Trump administration.

International student visas being revoked over traffic infractions... what is happening? apnews.com/article/f1-v...

Call for Experts for Upcoming IPCC | AGU The U.S. Academic Alliance for the IPCC, hosted by AGU, is facilitating nominations to the Seventh Assessment Cycle.

Very excited to share a new initiative to ensure US climate scientists will be nominated to IPCC AR7 cycle. The new U.S. Academic Alliance for the IPCC (USAA-IPCC) has opened a call for nominations, hosted by AGU: www.agu.org/ipcc-nominat... We encourage eligible scientists to apply by April 4th!

June 23-27!!!

Also...The workshop will provide lodging and food for all attendees, and travel scholarships will be available!
Check out the website to see a more detailed description of the workshop goals!

PSInet logo

Want great summer plans? Look no further! The PSInet workshop is coming to Indiana University, to re-introduce the ecophys community to PSInet, a new open-access network database of plant water potential measurements.

psinetrcn.github.io/posts/2025-0...

Trump Tracker: Firings, lawsuits, and U.S. science in chaos Follow President Donald Trump’s impact on U.S. research and science globally

This morning, the National Science Foundation fired 168 probationary employees, effective immediately. The number represents roughly 10% of its workforce.

Follow Science’s coverage of President Donald Trump’s impact on U.S. research and science globally. ⬇️ scim.ag/40XtSSi

Local opinion: Cutting funding for science in Arizona hurts our economy and our future The cuts are leading us down a path that will cede the United States' world leadership in science, medicine and health.

Our opinion piece in our local newspaper - Cutting funding for science in Arizona hurts our economy and our future 🌐🧪🧮🌾
tucson.com/opinion/colu...

Are the Trump team’s actions affecting your research? How to contact Nature Use this form to share information with Nature’s news team, or to make suggestions for future coverage.

Are you a scientist whose work is being affected by changes in the Trump administration? Get in touch with @nature.com reporters @maxkozlov.bsky.social @dangaristo.bsky.social @heidiledford.bsky.social Jeff Tollefson & yours truly.

Let us know what's on your mind & what we should be writing about.

How climate extremes fuel droughts and heavy rains Global warming causes extreme temperatures – this is clear to most, but few realize that both droughts and heavy rains are symptomatic of a climate in crisis. Sonia Seneviratne explains the far-reachi...

Global warming causes extreme temperatures – this is clear to most, but few realize that both droughts and heavy rains are symptomatic of a climate in crisis. @soniaseneviratne.bsky.social explains the far-reaching impacts of climate extremes.

ethz.ch/en/news-and-...

We received an email today warning us to download what we might need....

Santiago Valencia Cardenas selected as 2023 McGinnies Scholar

Woohoo, go @savcardenas.bsky.social! Such a well-deserved award, and I can't wait for the honorary talk this Spring! #proudadvisermoment @uazenvironment.bsky.social @uarizona.bsky.social

snre.arizona.edu/news/santiag...

Congrats! Looks super interesting!

My first book, Phenology, will be published just in time for spring, on Mar 4! @mitpress.bsky.social
mitpress.mit.edu/978026255105...

This basic primer provides a thorough summary of what #phenology is, how it is changing, & why we should care.

Read an excerpt: www.usanpn.org/news/article...

Please, please, please consider doing that the next time you turn down a review!!! Thank you!!!

The peer review process is TIME CONSUMING, and declining review invitations because of being TOO BUSY is ENTIRELY ACCEPTABLE (and NORMAL). That said, it is so UNBELIEVABLY HELPFUL when someone makes ALTERNATIVE SUGGESTIONS FOR REVIEWERS.

Lovely start to 2025 -- cycling and pastries on a beautiful day in Tucson with David Moore!

Great photo!!! Thank you @julianamejias05.bsky.social!!!

Presenting at AGU

Presenting at AGU

Presenting at AGU

Chairing at AGU

Thank you DC for another amazing AGU! #AGU24 did not disappoint, and it was great to see lab members presenting and discussing their research (@savcardenas.bsky.social & Zexi Shen). Now, the introvert in me will need a day (or week) to decompress and do some deep breathing exercises 😅!!!

Hard to believe that #AGU24 is next week! A list of our group presentations and sessions are here: agu.confex.com/agu/agu24/me...
Looking forward to catching up!

maybe he SHOULD attend AGU :)

Interested in how and where trees move water? I'm hiring a plant ecophys postdoc to study hydraulic redistribution in Indiana forests. If you'll be at AGU and want to discuss, please reach out!
jobs.carnegiescience.edu/jobs/postdoc...

Join Us at the FLUXNET Early Career Network Pod at AGU to:
-- Socialize and network
-- Learn more about the Early Career Network
-- Get details about upcoming events
-- Share your ideas and input on events and activities you'd like to see in the future

See you at #AGU2024