Wu Sun
@wu-sun.bsky.social
Climate scientist and ecologist at the Carnegie Institution for Science | Biosphere–atmosphere interactions 🛰️🌲, photosynthesis ☀️🍃, global carbon cycle, climate change impacts
https://carnegiescience.edu/bio/dr-wu-sun
📍Stanford, California, USA & 🌎
https://carnegiescience.edu/bio/dr-wu-sun
📍Stanford, California, USA & 🌎
Reposted by Wu Sun
Just published this new paper, with a bunch of fantastic colleagues, with many suggestions for "Improving the representation of plant water stress and water use in Earth System Models." Access is free online. We have some great figures, thanks to Victor Leshyk. 🧪🌐🌳🌎
November 5, 2025 at 5:51 PM
Just published this new paper, with a bunch of fantastic colleagues, with many suggestions for "Improving the representation of plant water stress and water use in Earth System Models." Access is free online. We have some great figures, thanks to Victor Leshyk. 🧪🌐🌳🌎
Reposted by Wu Sun
This is a great opportunity for US based early career scientists to build international research collaborations. Please spread the word.
The 2026 FLUXNET Secondment Program is open for applications!
The program supports extended visits of 2 - 6 weeks for early career scientists based in U.S. institutions to an international host institution to conduct research with eddy covariance data.
Apply here: fluxnet.org/community/se...
The program supports extended visits of 2 - 6 weeks for early career scientists based in U.S. institutions to an international host institution to conduct research with eddy covariance data.
Apply here: fluxnet.org/community/se...
fluxnet.org
August 22, 2025 at 6:41 PM
This is a great opportunity for US based early career scientists to build international research collaborations. Please spread the word.
Reposted by Wu Sun
Our "Joshua tree is CAM" paper is finally out: nph.onlinelibrary.wiley.com/doi/10.1111/...
Data collection started back in 2021, when we saw weird results in some RNAseq that made me stop and wonder if Joshua trees, long thought to be C3, were actually...CAM!
Data collection started back in 2021, when we saw weird results in some RNAseq that made me stop and wonder if Joshua trees, long thought to be C3, were actually...CAM!
Cryptic CAM photosynthesis in Joshua tree (Yucca brevifolia, Y. jaegeriana)
Joshua trees are long-lived perennial monocots native to the Mojave Desert in North America. Composed of two species, Yucca brevifolia and Y. jaegeriana (Asparagaceae), Joshua trees are imperiled by...
nph.onlinelibrary.wiley.com
August 19, 2025 at 1:17 PM
Our "Joshua tree is CAM" paper is finally out: nph.onlinelibrary.wiley.com/doi/10.1111/...
Data collection started back in 2021, when we saw weird results in some RNAseq that made me stop and wonder if Joshua trees, long thought to be C3, were actually...CAM!
Data collection started back in 2021, when we saw weird results in some RNAseq that made me stop and wonder if Joshua trees, long thought to be C3, were actually...CAM!
Reposted by Wu Sun
Applications for Fall Meeting AGU-B DEI Travel Grant for up tp $1500 (with a minimum award amount of the cost of graduate student early bird registration) ARE OPEN and close September 10th! Apply here. (docs.google.com/forms/d/e/1F...)
AGU Biogeosciences DEI Travel Grant 2025
This is the application for the 2025 AGU Biogeosciences DEI Travel Grant. Please submit by September 10th to be considered for the award. More information can be found here: https://connect.agu.org/bi...
docs.google.com
August 17, 2025 at 3:19 PM
Applications for Fall Meeting AGU-B DEI Travel Grant for up tp $1500 (with a minimum award amount of the cost of graduate student early bird registration) ARE OPEN and close September 10th! Apply here. (docs.google.com/forms/d/e/1F...)
Seriously, in 2025? Submitting an abstract is not waiting in line for a restaurant. I can't believe our membership fees couldn't afford a modest AWS plan to deal with queuing and concurrency
July 30, 2025 at 2:08 PM
Seriously, in 2025? Submitting an abstract is not waiting in line for a restaurant. I can't believe our membership fees couldn't afford a modest AWS plan to deal with queuing and concurrency
Reposted by Wu Sun
1. Kevin Gross and I just posted a new science-of-science preprint.
This one explores the looming peer review crisis. As many of you know, it's becoming significantly more difficult for journal editors to find scholars willing to serve as peer reviewers for submitted manuscripts.
This one explores the looming peer review crisis. As many of you know, it's becoming significantly more difficult for journal editors to find scholars willing to serve as peer reviewers for submitted manuscripts.
Will anyone review this paper? Screening, sorting, and the feedback cycles that imperil peer review
Scholarly publishing relies on peer review to identify the best science. Yet finding willing and qualified reviewers to evaluate manuscripts has become an increasingly challenging task, possibly even ...
arxiv.org
July 16, 2025 at 3:13 AM
1. Kevin Gross and I just posted a new science-of-science preprint.
This one explores the looming peer review crisis. As many of you know, it's becoming significantly more difficult for journal editors to find scholars willing to serve as peer reviewers for submitted manuscripts.
This one explores the looming peer review crisis. As many of you know, it's becoming significantly more difficult for journal editors to find scholars willing to serve as peer reviewers for submitted manuscripts.
Reposted by Wu Sun
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
July 11, 2025 at 5:40 PM
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...
Reposted by Wu Sun
US Earth Science people: Our June webinar felt so good, we’re making it a series. Join us next Tuesday 7/15 (and again in Aug & Sept) to hear from NSF staff and to get (most of?) your questions answered. www.nsf.gov/events/nsf-d...
NSF Division of Earth Sciences Informational Webinar
www.nsf.gov
July 10, 2025 at 1:29 PM
US Earth Science people: Our June webinar felt so good, we’re making it a series. Join us next Tuesday 7/15 (and again in Aug & Sept) to hear from NSF staff and to get (most of?) your questions answered. www.nsf.gov/events/nsf-d...
Reposted by Wu Sun
Proposed NOAA budget zeros out ALL climate laboratories and cooperative institutions.
GFDL, NSSL, GML, etc.
This appears to also end the US greenhouse gas sampling network, including at Mauna Loa, the oldest continuous carbon dioxide monitoring site on Earth.
www.commerce.gov/sites/defaul...
GFDL, NSSL, GML, etc.
This appears to also end the US greenhouse gas sampling network, including at Mauna Loa, the oldest continuous carbon dioxide monitoring site on Earth.
www.commerce.gov/sites/defaul...
June 30, 2025 at 11:11 PM
Proposed NOAA budget zeros out ALL climate laboratories and cooperative institutions.
GFDL, NSSL, GML, etc.
This appears to also end the US greenhouse gas sampling network, including at Mauna Loa, the oldest continuous carbon dioxide monitoring site on Earth.
www.commerce.gov/sites/defaul...
GFDL, NSSL, GML, etc.
This appears to also end the US greenhouse gas sampling network, including at Mauna Loa, the oldest continuous carbon dioxide monitoring site on Earth.
www.commerce.gov/sites/defaul...
Reposted by Wu Sun
What a tragedy this is even being proposed on paper... 💔
NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...
NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...
June 30, 2025 at 4:19 PM
What a tragedy this is even being proposed on paper... 💔
NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...
NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...
Reposted by Wu Sun
The US Global Change Research Program a next target of Trump's destruction campaign. My sources report that globalchange.gov will go dark Monday. NOAA is archiving the National Climate Assessment at NCEI.
U.S. Global Change Research Program | GlobalChange.gov
globalchange.gov
June 27, 2025 at 6:01 PM
The US Global Change Research Program a next target of Trump's destruction campaign. My sources report that globalchange.gov will go dark Monday. NOAA is archiving the National Climate Assessment at NCEI.
Reposted by Wu Sun
Now online: "Permafrost, Peatland, and Cropland Regions Are Key to Reconciling North American Carbon Sink Estimates" by Kelsey Foster et al., including @avnimalh0tra.bsky.social w/ Stanford, PNNL, NAU, and NRC colleagues agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Permafrost, Peatland, and Cropland Regions Are Key to Reconciling North American Carbon Sink Estimates
Additional sink inferred by inversions in just 16% of North America accounts for the discrepancy between top-down and bottom-up estimates Statistically significant differences between top-down an...
agupubs.onlinelibrary.wiley.com
June 11, 2025 at 1:44 PM
Now online: "Permafrost, Peatland, and Cropland Regions Are Key to Reconciling North American Carbon Sink Estimates" by Kelsey Foster et al., including @avnimalh0tra.bsky.social w/ Stanford, PNNL, NAU, and NRC colleagues agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Reposted by Wu Sun
🌍New paper out today!!! Global variation in vegetation carbon use efficiency inferred from eddy covariance observations @xiangzluo.bsky.social @natureportfolio.nature.com 🔗👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Global variation in vegetation carbon use efficiency inferred from eddy covariance observations - Nature Ecology & Evolution
The efficiency with which plants use carbon assimilated through photosynthesis has a key role in determining natureʼs capacity to offset carbon dioxide emissions. This study leverages global eddy cova...
www.nature.com
June 19, 2025 at 1:10 PM
🌍New paper out today!!! Global variation in vegetation carbon use efficiency inferred from eddy covariance observations @xiangzluo.bsky.social @natureportfolio.nature.com 🔗👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Wu Sun
Climate.gov, a major US government website supporting public education on climate science, will likely shut down after almost all of its staff were fired. What would be worse is if the website were co-opted to publish climate denial content.
Major US climate website likely to be shut down after almost all staff fired
Exclusive: Climate.gov, which supports public education on climate science, will soon no longer publish new content
www.theguardian.com
June 11, 2025 at 11:21 AM
Climate.gov, a major US government website supporting public education on climate science, will likely shut down after almost all of its staff were fired. What would be worse is if the website were co-opted to publish climate denial content.
Reposted by Wu Sun
US Earth Scientists: We know you have questions, come get them answered directly from NSF/EAR POs! Tuesday, June 17, 2p Eastern. Register here: www.nsf.gov/events/nsf-d...
NSF Division of Earth Sciences Informational Webinar
www.nsf.gov
June 9, 2025 at 7:24 PM
US Earth Scientists: We know you have questions, come get them answered directly from NSF/EAR POs! Tuesday, June 17, 2p Eastern. Register here: www.nsf.gov/events/nsf-d...
Reposted by Wu Sun
Biogeosciences Early Career Seminar - Recording available.
Don’t worry if you missed the seminar on May 7th – a recording is available on AGU’s YouTube! www.youtube.com/watch?v=zQPG...
Don’t worry if you missed the seminar on May 7th – a recording is available on AGU’s YouTube! www.youtube.com/watch?v=zQPG...
June 2, 2025 at 2:14 PM
Biogeosciences Early Career Seminar - Recording available.
Don’t worry if you missed the seminar on May 7th – a recording is available on AGU’s YouTube! www.youtube.com/watch?v=zQPG...
Don’t worry if you missed the seminar on May 7th – a recording is available on AGU’s YouTube! www.youtube.com/watch?v=zQPG...
Reposted by Wu Sun
DOE ASR program manager just sent a colleague an excerpt from the WH DOE budget that was stealthily dropped: “BER activities in environmental system sciences, atmospheric system research, earth system modeling, data management, and the Atmospheric Radiation Measurement User Facility are terminated."
June 1, 2025 at 1:09 AM
DOE ASR program manager just sent a colleague an excerpt from the WH DOE budget that was stealthily dropped: “BER activities in environmental system sciences, atmospheric system research, earth system modeling, data management, and the Atmospheric Radiation Measurement User Facility are terminated."
Reposted by Wu Sun
"The Great Wave" of carbon dioxide (CO₂) #ClimateChange #ScienceArt
Graphic produced by robbieandrew.github.io
Graphic produced by robbieandrew.github.io
May 31, 2025 at 1:48 AM
"The Great Wave" of carbon dioxide (CO₂) #ClimateChange #ScienceArt
Graphic produced by robbieandrew.github.io
Graphic produced by robbieandrew.github.io
Reposted by Wu Sun
Breaking from @science.org: The Trump administration wants to kill off a host of active and healthy NASA climate and planetary spacecraft. It would be a "leaner, more focused" agency, they say -- and one far less capable of studying the Earth and exploring space.
Dozens of active and planned NASA spacecraft killed in Trump budget request
Proposal would end nearly all new major science missions
www.science.org
May 30, 2025 at 10:58 PM
Breaking from @science.org: The Trump administration wants to kill off a host of active and healthy NASA climate and planetary spacecraft. It would be a "leaner, more focused" agency, they say -- and one far less capable of studying the Earth and exploring space.
Reposted by Wu Sun
Exciting news! 🎉
We’re thrilled to announce the speakers for our Early Career Seminar happening on May 7th!
Stay tuned—more details coming your way in the days ahead!
Registration 🔗: agu.zoom.us/meeting/regi...
We’re thrilled to announce the speakers for our Early Career Seminar happening on May 7th!
Stay tuned—more details coming your way in the days ahead!
Registration 🔗: agu.zoom.us/meeting/regi...
April 21, 2025 at 10:53 PM
Exciting news! 🎉
We’re thrilled to announce the speakers for our Early Career Seminar happening on May 7th!
Stay tuned—more details coming your way in the days ahead!
Registration 🔗: agu.zoom.us/meeting/regi...
We’re thrilled to announce the speakers for our Early Career Seminar happening on May 7th!
Stay tuned—more details coming your way in the days ahead!
Registration 🔗: agu.zoom.us/meeting/regi...
Reposted by Wu Sun
"To envision the disastrous impact of this plan, one only needs to see what NOAA research has provided to the U.S. taxpayer and imagine where we would be without it."
"Now is the time to reach out to your elected representatives."
"Stand Up for NOAA Research" - @nwas.org and @ametsoc.org statement
"Now is the time to reach out to your elected representatives."
"Stand Up for NOAA Research" - @nwas.org and @ametsoc.org statement
Stand Up for NOAA Research – The Time to Act is Now
The AMS is a global community committed to advancing weather, water, and climate science and service.
www.ametsoc.org
April 17, 2025 at 6:35 PM
"To envision the disastrous impact of this plan, one only needs to see what NOAA research has provided to the U.S. taxpayer and imagine where we would be without it."
"Now is the time to reach out to your elected representatives."
"Stand Up for NOAA Research" - @nwas.org and @ametsoc.org statement
"Now is the time to reach out to your elected representatives."
"Stand Up for NOAA Research" - @nwas.org and @ametsoc.org statement
Reposted by Wu Sun
NOAA just announced a long list of datasets that are going away🧪⚒️🌊: www.nesdis.noaa.gov/about/docume...
Download what you need asap and send comments to: [email protected]
Download what you need asap and send comments to: [email protected]
Notice of Changes
Notices of changes are formal public announcements of planned services changes to applications and other products.
www.nesdis.noaa.gov
April 17, 2025 at 12:44 AM
NOAA just announced a long list of datasets that are going away🧪⚒️🌊: www.nesdis.noaa.gov/about/docume...
Download what you need asap and send comments to: [email protected]
Download what you need asap and send comments to: [email protected]
Reposted by Wu Sun
🌿🔬 Call for Abstracts: AGU Biogeosciences Early Career Seminar Series! 🔬🌿
Are you an early-career scientist (<10 years since your highest degree) looking to showcase your research and expand your network? We are speakers for our upcoming Early Career Seminar Series!
Are you an early-career scientist (<10 years since your highest degree) looking to showcase your research and expand your network? We are speakers for our upcoming Early Career Seminar Series!
March 21, 2025 at 6:13 PM
🌿🔬 Call for Abstracts: AGU Biogeosciences Early Career Seminar Series! 🔬🌿
Are you an early-career scientist (<10 years since your highest degree) looking to showcase your research and expand your network? We are speakers for our upcoming Early Career Seminar Series!
Are you an early-career scientist (<10 years since your highest degree) looking to showcase your research and expand your network? We are speakers for our upcoming Early Career Seminar Series!
Reposted by Wu Sun
New: A NOAA lab in Hawaii that is connected to the longest-running observation of global greenhouse gas concentrations is slated for closure in August, according to a list of lease terminations Democratic members of Congress shared with @washingtonpost.com.
Trump moves to close government lab that tracks planet-warming pollution
The lab is connected to the Mauna Loa Observatory, where scientists gather data to produce the Keeling Curve, a chart on the daily status of atmospheric carbon dioxide concentrations.
www.washingtonpost.com
March 14, 2025 at 6:23 PM
New: A NOAA lab in Hawaii that is connected to the longest-running observation of global greenhouse gas concentrations is slated for closure in August, according to a list of lease terminations Democratic members of Congress shared with @washingtonpost.com.
Reposted by Wu Sun
AGU has joined a lawsuit challenging the firing of probationary employees at federal agencies.
These actions weaken science, harm public health & the environment, and threaten national security. 🧵 #StandWithScience
These actions weaken science, harm public health & the environment, and threaten national security. 🧵 #StandWithScience
March 5, 2025 at 11:25 PM
AGU has joined a lawsuit challenging the firing of probationary employees at federal agencies.
These actions weaken science, harm public health & the environment, and threaten national security. 🧵 #StandWithScience
These actions weaken science, harm public health & the environment, and threaten national security. 🧵 #StandWithScience