Darren Ficklin
@dficklin.bsky.social
hydrologist at Indiana University
Just now getting around to posting about this. Nice to be part of this study with Quan Zhang and a host of others! We find that the water use efficiency from increased CO2 does not lead to higher tree growth.
You can find the study here: www.nature.com/articles/s41...
You can find the study here: www.nature.com/articles/s41...
Increased efficiency of water use does not stimulate tree productivity - Nature Climate Change
The authors theoretically delineate the maximal increases in tree growth that can be expected from increases in plant intrinsic water-use efficiency, which increases with rising CO2. They highlight en...
www.nature.com
November 25, 2025 at 9:53 PM
Just now getting around to posting about this. Nice to be part of this study with Quan Zhang and a host of others! We find that the water use efficiency from increased CO2 does not lead to higher tree growth.
You can find the study here: www.nature.com/articles/s41...
You can find the study here: www.nature.com/articles/s41...
Reposted by Darren Ficklin
Do heat waves happen in rivers? How do river heat waves (RHW) compare to air heat waves (AHW)?
www.pnas.org/doi/10.1073/...
Here we show: 1) RHWs occur less frequently & intensively but last twice as long as AHWs; 2) RHW have risen much faster than AHWs.
Congrats to Dr. Kayal Sadayappan!
www.pnas.org/doi/10.1073/...
Here we show: 1) RHWs occur less frequently & intensively but last twice as long as AHWs; 2) RHW have risen much faster than AHWs.
Congrats to Dr. Kayal Sadayappan!
September 22, 2025 at 10:36 PM
Do heat waves happen in rivers? How do river heat waves (RHW) compare to air heat waves (AHW)?
www.pnas.org/doi/10.1073/...
Here we show: 1) RHWs occur less frequently & intensively but last twice as long as AHWs; 2) RHW have risen much faster than AHWs.
Congrats to Dr. Kayal Sadayappan!
www.pnas.org/doi/10.1073/...
Here we show: 1) RHWs occur less frequently & intensively but last twice as long as AHWs; 2) RHW have risen much faster than AHWs.
Congrats to Dr. Kayal Sadayappan!
Reposted by Darren Ficklin
Interested in how river water changes under climate change + human perturbations?
Come join our diverse group of learners. You will learn and grow to ask questions, +use big data, reactive transport + machine learning models
"Somewhere, something incredible is waiting to be known." - Carl Sagan
Come join our diverse group of learners. You will learn and grow to ask questions, +use big data, reactive transport + machine learning models
"Somewhere, something incredible is waiting to be known." - Carl Sagan
August 13, 2025 at 8:34 PM
Interested in how river water changes under climate change + human perturbations?
Come join our diverse group of learners. You will learn and grow to ask questions, +use big data, reactive transport + machine learning models
"Somewhere, something incredible is waiting to be known." - Carl Sagan
Come join our diverse group of learners. You will learn and grow to ask questions, +use big data, reactive transport + machine learning models
"Somewhere, something incredible is waiting to be known." - Carl Sagan
Cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool.
Hurricane forecasters rely on weather data collected and processed by Department of Defense satellites. That data will no longer be available as of Monday, June 30. By @rhersher.bsky.social
Defense Department will stop providing crucial satellite weather data
Hurricane forecasters rely on weather data collected and processed by Department of Defense satellites. That data will no longer be available as of Monday, June 30.
n.pr
June 28, 2025 at 5:29 PM
Cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool.
Reposted by Darren Ficklin
Wrapping up your PhD? I’m planning to hire a postdoc in the next few months (start date flexible). Will start formally advertising soon, but you heard it here first!! Possible research topics include - critical zone hydrology, agricultural water quality, SW-GW interactions. Reach out if interested!
June 6, 2025 at 7:02 PM
Wrapping up your PhD? I’m planning to hire a postdoc in the next few months (start date flexible). Will start formally advertising soon, but you heard it here first!! Possible research topics include - critical zone hydrology, agricultural water quality, SW-GW interactions. Reach out if interested!
Reposted by Darren Ficklin
Musk should be asked about this in every interview he does now and forever. To ignore it is a dereliction of duty.
www.nytimes.com/2025/05/30/o...
www.nytimes.com/2025/05/30/o...
May 30, 2025 at 4:20 PM
Musk should be asked about this in every interview he does now and forever. To ignore it is a dereliction of duty.
www.nytimes.com/2025/05/30/o...
www.nytimes.com/2025/05/30/o...
Reposted by Darren Ficklin
Am I crazy or did we just have a convo about how we can't fund cancer research?
May 23, 2025 at 2:23 AM
Am I crazy or did we just have a convo about how we can't fund cancer research?
Reposted by Darren Ficklin
With proposed changes to NIH support, potentially life-saving research at UW–Madison would become slower and less ambitious. And the true cost would fall on those waiting for the next medical breakthrough, who would have to wait even longer.
The real costs of research funding cuts
UW–Madison could lose tens of millions of dollars in annual research support due to a proposed change in federal funding. But what’s really at stake? The university’s ability to advance life-saving re
news.wisc.edu
May 19, 2025 at 7:07 PM
With proposed changes to NIH support, potentially life-saving research at UW–Madison would become slower and less ambitious. And the true cost would fall on those waiting for the next medical breakthrough, who would have to wait even longer.
Reposted by Darren Ficklin
The people telling you climate change isn’t real would also like you to believe that paying rent on an empty building saves money
www.nytimes.com/2025/05/16/n...
www.nytimes.com/2025/05/16/n...
NASA Office Above ‘Seinfeld’ Diner Is a Target of Trump Budget Shrinkage
www.nytimes.com
May 16, 2025 at 11:28 AM
The people telling you climate change isn’t real would also like you to believe that paying rent on an empty building saves money
www.nytimes.com/2025/05/16/n...
www.nytimes.com/2025/05/16/n...
Reposted by Darren Ficklin
Foundation-funded postdoc funding opportunity to work in WA state! Interested in applying to work with me on climate on land or global carbon cycle dynamics? Reach out! Info sessions in May and June, due date June 26. www.wrfseattle.org/grants/wrf-p...
Postdoctoral Fellowships - Washington Research Foundation
Fellowship Details Fellowships include three years of salary support for the postdoc at an eligible research institution in Washington state. The salary for the first year is $80,000, increasing to […...
www.wrfseattle.org
April 28, 2025 at 3:55 PM
Foundation-funded postdoc funding opportunity to work in WA state! Interested in applying to work with me on climate on land or global carbon cycle dynamics? Reach out! Info sessions in May and June, due date June 26. www.wrfseattle.org/grants/wrf-p...
Reposted by Darren Ficklin
Applications are open for the Stakeholder-Informed Spatial Modeling for Hydrologic Sciences Workshop!
Dates: August 18 - 19, 2025
Location: Northeastern University Marine Science Center, Nahant, MA
Apply by: May 16
Details at the link below:
www.cuahsi.org/workshops/st...
Dates: August 18 - 19, 2025
Location: Northeastern University Marine Science Center, Nahant, MA
Apply by: May 16
Details at the link below:
www.cuahsi.org/workshops/st...
April 17, 2025 at 12:52 PM
Applications are open for the Stakeholder-Informed Spatial Modeling for Hydrologic Sciences Workshop!
Dates: August 18 - 19, 2025
Location: Northeastern University Marine Science Center, Nahant, MA
Apply by: May 16
Details at the link below:
www.cuahsi.org/workshops/st...
Dates: August 18 - 19, 2025
Location: Northeastern University Marine Science Center, Nahant, MA
Apply by: May 16
Details at the link below:
www.cuahsi.org/workshops/st...
Reposted by Darren Ficklin
Coastal Massachusetts in August? Sure! Apply to attend our CUAHSI-sponsored workshop on stakeholder-informed spatial modeling for hydrologic sciences. Let me know if you have any questions!
www.cuahsi.org/workshops/st...
www.cuahsi.org/workshops/st...
Workshops | Cuahsi.orgfacebookfacebookBlueskytwitterinstagramlinkedinyoutubemagnifyclosechevron-leftchevron-rightchevron-topchevron-bottomSearch iconClose iconSearch iconBluesky
www.cuahsi.org
April 8, 2025 at 8:49 PM
Coastal Massachusetts in August? Sure! Apply to attend our CUAHSI-sponsored workshop on stakeholder-informed spatial modeling for hydrologic sciences. Let me know if you have any questions!
www.cuahsi.org/workshops/st...
www.cuahsi.org/workshops/st...
Coastal Massachusetts in August? Sure! Apply to attend our CUAHSI-sponsored workshop on stakeholder-informed spatial modeling for hydrologic sciences. Let me know if you have any questions!
www.cuahsi.org/workshops/st...
www.cuahsi.org/workshops/st...
Workshops | Cuahsi.orgfacebookfacebookBlueskytwitterinstagramlinkedinyoutubemagnifyclosechevron-leftchevron-rightchevron-topchevron-bottomSearch iconClose iconSearch iconBluesky
www.cuahsi.org
April 8, 2025 at 8:49 PM
Coastal Massachusetts in August? Sure! Apply to attend our CUAHSI-sponsored workshop on stakeholder-informed spatial modeling for hydrologic sciences. Let me know if you have any questions!
www.cuahsi.org/workshops/st...
www.cuahsi.org/workshops/st...
Reposted by Darren Ficklin
Monstrously destructive, incoherent, ill-informed tariffs based on fabrications, imagined wrongs, discredited theories and ignorance of decades of evidence. And the real tragedy is that they will hurt working Americans more than anyone else.
April 2, 2025 at 9:38 PM
Monstrously destructive, incoherent, ill-informed tariffs based on fabrications, imagined wrongs, discredited theories and ignorance of decades of evidence. And the real tragedy is that they will hurt working Americans more than anyone else.
Reposted by Darren Ficklin
Fuck droughts, we're doing pluvials now. New work w/ Park Williams, Richard Seager, Jason Smerdon, & @drkatemarvel.bsky.social
agupubs.onlinelibrary.wiley.com/doi/full/10....
agupubs.onlinelibrary.wiley.com/doi/full/10....
Megapluvials in Southwestern North America
Pluvials in Southwestern North America occur as often as droughts, including two 20th century megapluvials from 1905 to 1923 and 1978-1999 The 1978–1999 megapluvial was the wettest interval of th...
agupubs.onlinelibrary.wiley.com
March 26, 2025 at 12:56 PM
Fuck droughts, we're doing pluvials now. New work w/ Park Williams, Richard Seager, Jason Smerdon, & @drkatemarvel.bsky.social
agupubs.onlinelibrary.wiley.com/doi/full/10....
agupubs.onlinelibrary.wiley.com/doi/full/10....
Reposted by Darren Ficklin
Our paper on how landscape evolution impacts the trajectory of life is out in @science.org! Work by two great post-docs in @iuearth.bsky.social and collaboration with the brilliant Tara Smiley of Stony Brook resulted in this.
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Direct effects of mountain uplift and topography on biodiversity
Biodiversity hotspots in Earth’s mountain ranges suggest a strong connection between topographic development and biological processes. However, it remains unclear whether high biodiversity in mountain...
www.science.org
March 24, 2025 at 4:16 PM
Our paper on how landscape evolution impacts the trajectory of life is out in @science.org! Work by two great post-docs in @iuearth.bsky.social and collaboration with the brilliant Tara Smiley of Stony Brook resulted in this.
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Darren Ficklin
-Climate change challenges traditional drought assessments
-Reducing the sensitivity of drought indicators to non-stationarity is essential for accurately assessing drought
-Multiple drought definitions or concepts are possible, and needed, to correctly assess drought in a changing climate
-Reducing the sensitivity of drought indicators to non-stationarity is essential for accurately assessing drought
-Multiple drought definitions or concepts are possible, and needed, to correctly assess drought in a changing climate
Prioritization of Research on Drought Assessment in a Changing Climate
Climate change adds conceptual and quantitative challenges to traditional drought assessments
Reducing the sensitivity of drought indicators to non-stationarity is essential for accurately assess...
agupubs.onlinelibrary.wiley.com
March 7, 2025 at 1:27 AM
-Climate change challenges traditional drought assessments
-Reducing the sensitivity of drought indicators to non-stationarity is essential for accurately assessing drought
-Multiple drought definitions or concepts are possible, and needed, to correctly assess drought in a changing climate
-Reducing the sensitivity of drought indicators to non-stationarity is essential for accurately assessing drought
-Multiple drought definitions or concepts are possible, and needed, to correctly assess drought in a changing climate
!!!!!
NSF plans to reinstate all probationary employees who were fired on 18 Feb!
NSF’s decision. 👏🏻👏🏻❤️
NSF’s decision. 👏🏻👏🏻❤️
March 3, 2025 at 2:36 PM
!!!!!
Reposted by Darren Ficklin
🚨 #NOAA is essential for weather forecasting, climate research, and public safety.
AGU stands with the scientific community in urging Congress to protect and strengthen NOAA, not dismantle it.
Our economy, environment, and safety depend on it.
AGU stands with the scientific community in urging Congress to protect and strengthen NOAA, not dismantle it.
Our economy, environment, and safety depend on it.
February 28, 2025 at 12:30 PM
🚨 #NOAA is essential for weather forecasting, climate research, and public safety.
AGU stands with the scientific community in urging Congress to protect and strengthen NOAA, not dismantle it.
Our economy, environment, and safety depend on it.
AGU stands with the scientific community in urging Congress to protect and strengthen NOAA, not dismantle it.
Our economy, environment, and safety depend on it.
Last Tuesday, I was set to give a talk on 'climate change in the Northeast' at a retirement home but had to cancel due to hourly job threats.
After nearly two weeks of overwhelming uncertainty, today it happened. I was fired from my dream of working at NOAA. I'm so sorry to everyone also affected.
After nearly two weeks of overwhelming uncertainty, today it happened. I was fired from my dream of working at NOAA. I'm so sorry to everyone also affected.
February 27, 2025 at 11:26 PM
Reposted by Darren Ficklin
Hard to imagine a more objectively evil scenario than “the richest person on the planet intentionally chooses to prevent poor children from starving to death.”
if a comic book supervillain did it you’d think it was implausibly evil. The sort of thing every religion agrees results in Going To Hell
if a comic book supervillain did it you’d think it was implausibly evil. The sort of thing every religion agrees results in Going To Hell
Awful: Delivery of life saving treatment to nearly 400,000 severely malnourished kids abroad is in doubt amid USAID firings, the product's manufacturers tell me.
The treatment is a paste made of peanuts, milk and sugar for kids on edge of starvation.
Details here:
newrepublic.com/article/1919...
The treatment is a paste made of peanuts, milk and sugar for kids on edge of starvation.
Details here:
newrepublic.com/article/1919...
Musk Scandal at USAID Takes Ugly Turn, Putting Starving Kids at Risk
Two U.S. nonprofits that manufacture a treatment sent by USAID to help severely malnourished children abroad say the process is in chaos. This isn’t what Marco Rubio said would happen.
newrepublic.com
February 26, 2025 at 11:01 PM
Hard to imagine a more objectively evil scenario than “the richest person on the planet intentionally chooses to prevent poor children from starving to death.”
if a comic book supervillain did it you’d think it was implausibly evil. The sort of thing every religion agrees results in Going To Hell
if a comic book supervillain did it you’d think it was implausibly evil. The sort of thing every religion agrees results in Going To Hell
Reposted by Darren Ficklin
“You’re terminated because…?”
Fired federal employees are telling their stories—no deep state, just career public servants tossed aside.
DOGE’s mass firings aren’t about efficiency—they’re gutting expertise, wrecking lives, and calling it “reform.”
Fired federal employees are telling their stories—no deep state, just career public servants tossed aside.
DOGE’s mass firings aren’t about efficiency—they’re gutting expertise, wrecking lives, and calling it “reform.”
February 26, 2025 at 1:26 AM
“You’re terminated because…?”
Fired federal employees are telling their stories—no deep state, just career public servants tossed aside.
DOGE’s mass firings aren’t about efficiency—they’re gutting expertise, wrecking lives, and calling it “reform.”
Fired federal employees are telling their stories—no deep state, just career public servants tossed aside.
DOGE’s mass firings aren’t about efficiency—they’re gutting expertise, wrecking lives, and calling it “reform.”
Reposted by Darren Ficklin
Past climate conditions are preserved in tree rings. Researchers, including @dustybowl.bsky.social and @drkatemarvel.bsky.social, are using these records to understand the drivers of 21st century droughts in Eurasia. eos.org/research-spo...
A Warming Climate Is Shifting Eurasian Drought Conditions - Eos
Researchers use tree ring records to help reconstruct hydroclimate patterns and isolate drivers of drought.
eos.org
February 24, 2025 at 3:00 PM
Past climate conditions are preserved in tree rings. Researchers, including @dustybowl.bsky.social and @drkatemarvel.bsky.social, are using these records to understand the drivers of 21st century droughts in Eurasia. eos.org/research-spo...
Reposted by Darren Ficklin
Is global warming affecting regional drought across Europe and Asia? Yes. New paper by me, @dustybowl.bsky.social and his dad
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Global Warming Is Likely Affecting Regional Drought Across Eurasia
Rigorous climate change detection and attribution is possible without the use of general circulation model simulations 21st century Eurasian hydroclimate patterns are incompatible with pre-indust...
agupubs.onlinelibrary.wiley.com
February 14, 2025 at 12:19 PM
Is global warming affecting regional drought across Europe and Asia? Yes. New paper by me, @dustybowl.bsky.social and his dad
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...