Christa Kelleher
@hydrochrista.bsky.social
Hydrologist at Lafayette College (PUI)
Reposted by Christa Kelleher
The EPA has announced changes to the definition of Waters of the U.S. that leave critical systems supporting drinking water, floodwater storage, and biodiversity unprotected. Public comments on the changes are open until January 5, 2026.
Read SFS's response: freshwater-science.org/news/sfs-res...
Read SFS's response: freshwater-science.org/news/sfs-res...
SFS Response Letter on Changes to Waters of the U.S. Definition | Society for Freshwater Science
December 30, 2025 — The Society for Freshwater Science (SFS) today released a letter outlining changes to the Waters of the U.S. (WOTUS) definition and our response.
freshwater-science.org
December 30, 2025 at 9:16 PM
The EPA has announced changes to the definition of Waters of the U.S. that leave critical systems supporting drinking water, floodwater storage, and biodiversity unprotected. Public comments on the changes are open until January 5, 2026.
Read SFS's response: freshwater-science.org/news/sfs-res...
Read SFS's response: freshwater-science.org/news/sfs-res...
Reposted by Christa Kelleher
Experimental evidence that students are more likely to contest grades when they are delivered by an evaluator with a female-sounding name.
"These findings suggest that women in evaluative positions face disproportionate resistance when delivering negative assessments."
"These findings suggest that women in evaluative positions face disproportionate resistance when delivering negative assessments."
December 24, 2025 at 11:21 PM
Experimental evidence that students are more likely to contest grades when they are delivered by an evaluator with a female-sounding name.
"These findings suggest that women in evaluative positions face disproportionate resistance when delivering negative assessments."
"These findings suggest that women in evaluative positions face disproportionate resistance when delivering negative assessments."
Reposted by Christa Kelleher
Attend #EGU26 without a registration fee😮?
If you have physical or mental #disabilities, are chronically ill or have faced barriers attending a #meeting, you can now participate in our Accessibility and Inclusivity Advisory Group by 23 January 2026.
👉: egu.eu/9PXKSQ
📸: Daniel Hölbling on #imaggeo
If you have physical or mental #disabilities, are chronically ill or have faced barriers attending a #meeting, you can now participate in our Accessibility and Inclusivity Advisory Group by 23 January 2026.
👉: egu.eu/9PXKSQ
📸: Daniel Hölbling on #imaggeo
December 24, 2025 at 11:05 AM
Attend #EGU26 without a registration fee😮?
If you have physical or mental #disabilities, are chronically ill or have faced barriers attending a #meeting, you can now participate in our Accessibility and Inclusivity Advisory Group by 23 January 2026.
👉: egu.eu/9PXKSQ
📸: Daniel Hölbling on #imaggeo
If you have physical or mental #disabilities, are chronically ill or have faced barriers attending a #meeting, you can now participate in our Accessibility and Inclusivity Advisory Group by 23 January 2026.
👉: egu.eu/9PXKSQ
📸: Daniel Hölbling on #imaggeo
Reposted by Christa Kelleher
I have a suggestion…
OSTP has issued a request for information, please share with them your ideas for how to improve government functions related to science funding and policy
www.federalregister.gov/documents/20...
www.federalregister.gov/documents/20...
Notice of Request for Information; Accelerating the American Scientific Enterprise
The Office of Science and Technology Policy (OSTP) requests input from all interested parties on Federal policy updates that aim to accelerate the American scientific enterprise, enable groundbreaking...
www.federalregister.gov
December 24, 2025 at 12:15 AM
I have a suggestion…
Reposted by Christa Kelleher
Time to get your public comments in on the proposed Waters of the U.S. rule that would strip protections for countless wetlands and streams.
Trout unlimited has a tool on their page that will automatically send your message to the EPA as well as your representatives:
www.tu.org/conservation...
Trout unlimited has a tool on their page that will automatically send your message to the EPA as well as your representatives:
www.tu.org/conservation...
November 23, 2025 at 11:03 PM
Time to get your public comments in on the proposed Waters of the U.S. rule that would strip protections for countless wetlands and streams.
Trout unlimited has a tool on their page that will automatically send your message to the EPA as well as your representatives:
www.tu.org/conservation...
Trout unlimited has a tool on their page that will automatically send your message to the EPA as well as your representatives:
www.tu.org/conservation...
Reposted by Christa Kelleher
Well-meaning city dwellers forgo permits and official procedure to rewild urban areas across the country. In downtown LA, artist Doug Rosenberg is trying to push the grassroots movement forward. n.pr/47L5wQj
A guerrilla gardener installed a pop-up wetland in the LA River. Here's how — and why
Well-meaning city dwellers forgo permits and official procedure to rewild urban areas across the country. In downtown LA, artist Doug Rosenberg is trying to push the grassroots movement forward.
n.pr
November 17, 2025 at 6:17 PM
Well-meaning city dwellers forgo permits and official procedure to rewild urban areas across the country. In downtown LA, artist Doug Rosenberg is trying to push the grassroots movement forward. n.pr/47L5wQj
Reposted by Christa Kelleher
Last #WARR in 2025!!
Drs. Theresa Blume (GFZ, Germany) + Holly Barnard (CU Boulder, US) on
Waters above + below ground:
How root uptake, transpiration, + subsurface stormflow connect drought, floods, ecosystems?
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social
Drs. Theresa Blume (GFZ, Germany) + Holly Barnard (CU Boulder, US) on
Waters above + below ground:
How root uptake, transpiration, + subsurface stormflow connect drought, floods, ecosystems?
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social
November 12, 2025 at 9:56 PM
Last #WARR in 2025!!
Drs. Theresa Blume (GFZ, Germany) + Holly Barnard (CU Boulder, US) on
Waters above + below ground:
How root uptake, transpiration, + subsurface stormflow connect drought, floods, ecosystems?
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social
Drs. Theresa Blume (GFZ, Germany) + Holly Barnard (CU Boulder, US) on
Waters above + below ground:
How root uptake, transpiration, + subsurface stormflow connect drought, floods, ecosystems?
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social
Reposted by Christa Kelleher
EGU26 abstract submission is open! We invite you to submit your work to our large-sample hydrology session HS2.4.2 💻💧🌊
meetingorganizer.copernicus.org/EGU26/sessio...
meetingorganizer.copernicus.org/EGU26/sessio...
October 22, 2025 at 10:52 PM
EGU26 abstract submission is open! We invite you to submit your work to our large-sample hydrology session HS2.4.2 💻💧🌊
meetingorganizer.copernicus.org/EGU26/sessio...
meetingorganizer.copernicus.org/EGU26/sessio...
Reposted by Christa Kelleher
Navigating Academic Waters Webinar Series Continues!
Join us for, Expanding Funding Landscape: Non-Federal Funding Opportunities
OCT 8 / 1-2PM ET
Diversifying funding streams is becoming more important in hydrology and environmental science.
us06web.zoom.us/webinar/regi...
Join us for, Expanding Funding Landscape: Non-Federal Funding Opportunities
OCT 8 / 1-2PM ET
Diversifying funding streams is becoming more important in hydrology and environmental science.
us06web.zoom.us/webinar/regi...
October 6, 2025 at 2:41 PM
Navigating Academic Waters Webinar Series Continues!
Join us for, Expanding Funding Landscape: Non-Federal Funding Opportunities
OCT 8 / 1-2PM ET
Diversifying funding streams is becoming more important in hydrology and environmental science.
us06web.zoom.us/webinar/regi...
Join us for, Expanding Funding Landscape: Non-Federal Funding Opportunities
OCT 8 / 1-2PM ET
Diversifying funding streams is becoming more important in hydrology and environmental science.
us06web.zoom.us/webinar/regi...
Reposted by Christa Kelleher
EPA has ordered scientists in its Office of Water to immediately pause almost all research & stop publishing studies. Researchers were told that, unless scientific journals had already returned proofs, studies will be subject to an additional EPA review.
www.washingtonpost.com/climate-envi...
www.washingtonpost.com/climate-envi...
EPA tells scientists to stop publishing studies, employees say
Staff from the EPA’s Office of Water were summoned to a town hall meeting this week and told to pause the publication of most research, pending a review.
www.washingtonpost.com
September 20, 2025 at 1:24 PM
EPA has ordered scientists in its Office of Water to immediately pause almost all research & stop publishing studies. Researchers were told that, unless scientific journals had already returned proofs, studies will be subject to an additional EPA review.
www.washingtonpost.com/climate-envi...
www.washingtonpost.com/climate-envi...
Reposted by Christa Kelleher
Two fully NSF- funded Ph.D. positions in hydroinformatics at the Clemson University. Apply by 15 October. See also: csdms.colorado.edu/wiki/Jobs
August 19, 2025 at 1:05 PM
Two fully NSF- funded Ph.D. positions in hydroinformatics at the Clemson University. Apply by 15 October. See also: csdms.colorado.edu/wiki/Jobs
Reposted by Christa Kelleher
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
Reposted by Christa Kelleher
One year’s worth of rain in 24 hours in China.
Here in NJ, we just had a 10-minute rainstorm so intense that it downed trees and power lines and flooded streets immediately.
This is what a hotter climate does
www.straitstimes.com/asia/east-as...
Here in NJ, we just had a 10-minute rainstorm so intense that it downed trees and power lines and flooded streets immediately.
This is what a hotter climate does
www.straitstimes.com/asia/east-as...
Storms dump nearly a year of rain in northern China, 19,000 evacuated
Almost 20,000 people from more than 6,000 households were evacuated, the authorities said. Read more at straitstimes.com. Read more at straitstimes.com.
www.straitstimes.com
July 25, 2025 at 9:05 PM
One year’s worth of rain in 24 hours in China.
Here in NJ, we just had a 10-minute rainstorm so intense that it downed trees and power lines and flooded streets immediately.
This is what a hotter climate does
www.straitstimes.com/asia/east-as...
Here in NJ, we just had a 10-minute rainstorm so intense that it downed trees and power lines and flooded streets immediately.
This is what a hotter climate does
www.straitstimes.com/asia/east-as...
Reposted by Christa Kelleher
Reminder that H3S sends out quarterly newsletters with resources, upcoming events info, and other science-related highlights! Sign up here: www.agu-h3s.org/contact
July 24, 2025 at 9:34 PM
Reminder that H3S sends out quarterly newsletters with resources, upcoming events info, and other science-related highlights! Sign up here: www.agu-h3s.org/contact
Reposted by Christa Kelleher
Calling all catchment enthusiasts! Do you have any catchment science or critical zone science updates to share? Please consider attending and supporting long-term sites by submitting an abstract to H046! #AGU2025
July 24, 2025 at 4:20 AM
Calling all catchment enthusiasts! Do you have any catchment science or critical zone science updates to share? Please consider attending and supporting long-term sites by submitting an abstract to H046! #AGU2025
#AGU25 abstracts are due July 30! If you're doing any work on river temperature, we'd love to see you in New Orleans this December!! With: @andrasszeitz.bsky.social, @freshwaterflows.bsky.social, and #LorrayneMiralha
July 21, 2025 at 6:41 PM
#AGU25 abstracts are due July 30! If you're doing any work on river temperature, we'd love to see you in New Orleans this December!! With: @andrasszeitz.bsky.social, @freshwaterflows.bsky.social, and #LorrayneMiralha
Reposted by Christa Kelleher
Streams have become drier in a warming climate.
7/17, #WARR talks on
intermittent streams + collaborative science teams,
Dr. Margaret Zimmer @margaretzimmer.bsky.social
Dr. Amy Burgin @burginam.bsky.social
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social @devonkerins.bsky.social
7/17, #WARR talks on
intermittent streams + collaborative science teams,
Dr. Margaret Zimmer @margaretzimmer.bsky.social
Dr. Amy Burgin @burginam.bsky.social
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social @devonkerins.bsky.social
July 8, 2025 at 9:29 PM
Streams have become drier in a warming climate.
7/17, #WARR talks on
intermittent streams + collaborative science teams,
Dr. Margaret Zimmer @margaretzimmer.bsky.social
Dr. Amy Burgin @burginam.bsky.social
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social @devonkerins.bsky.social
7/17, #WARR talks on
intermittent streams + collaborative science teams,
Dr. Margaret Zimmer @margaretzimmer.bsky.social
Dr. Amy Burgin @burginam.bsky.social
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social @devonkerins.bsky.social
Reposted by Christa Kelleher
In a study of professors, women got 378 new work requests over 4 weeks vs 118 for men. Women spent more time on service, advising & teaching; men on research. Orgs should track who is taking extra duties & ensure they are rewarded and distributed fairly. www.forbes.com/sites/kimels...
Being Too Helpful At Work Can Hurt Your Career—Here’s How To Say No
Women are more likely to take on behind-the-scenes duties at work—extra tasks like onboarding or event planning—and it's hurting their careers. Here's how to say no.
www.forbes.com
July 7, 2025 at 8:03 PM
In a study of professors, women got 378 new work requests over 4 weeks vs 118 for men. Women spent more time on service, advising & teaching; men on research. Orgs should track who is taking extra duties & ensure they are rewarded and distributed fairly. www.forbes.com/sites/kimels...
Reposted by Christa Kelleher
Hundreds of employees at the EPA released a “Declaration of Dissent” today, accusing EPA officials of politicizing the agency and undermining its core mission to “protect human health and the environment.” scim.ag/4lB937S
EPA employees accuse Trump officials of undermining the agency’s mission
“Declaration of Dissent” denounces partisan messaging, rollback of environmental regulations, and dismantling of science office, among other concerns
scim.ag
June 30, 2025 at 10:38 PM
Hundreds of employees at the EPA released a “Declaration of Dissent” today, accusing EPA officials of politicizing the agency and undermining its core mission to “protect human health and the environment.” scim.ag/4lB937S
Reposted by Christa Kelleher
Don't forget to apply for the Headwaters Leadership Academy by Monday!
June 27, 2025 at 1:57 PM
Don't forget to apply for the Headwaters Leadership Academy by Monday!
Reposted by Christa Kelleher
NEW: NSF will be kicked out of their building. Announcement will be made tomorrow by HUD Sec. and Governor of VA. HUD will take over the NSF building over the next two years.
NSF staffer: "There is no planning for NSF, no identified future location, appropriation for a new building or a move."
NSF staffer: "There is no planning for NSF, no identified future location, appropriation for a new building or a move."
June 24, 2025 at 10:20 PM
NEW: NSF will be kicked out of their building. Announcement will be made tomorrow by HUD Sec. and Governor of VA. HUD will take over the NSF building over the next two years.
NSF staffer: "There is no planning for NSF, no identified future location, appropriation for a new building or a move."
NSF staffer: "There is no planning for NSF, no identified future location, appropriation for a new building or a move."
Reposted by Christa Kelleher
Teach hydro modeling? Want to introduce modeling in an intro class?
Check out this web-app, activities, and code (in case you want to spin off your own)..
Thanks @jansei.bsky.social for working with me on this, which was inspired by his HBV-lite teaching software!
dx.doi.org/10.1002/hyp....
Check out this web-app, activities, and code (in case you want to spin off your own)..
Thanks @jansei.bsky.social for working with me on this, which was inspired by his HBV-lite teaching software!
dx.doi.org/10.1002/hyp....
Interactive Learning in Hydrological Modelling With a Web‐Based Tool
We introduce a web-based tool to explore hydrological modeling in classrooms. The app can be run in any internet browser on a variety of devices. The app and code are available for free. We include m...
dx.doi.org
June 23, 2025 at 10:23 AM
Teach hydro modeling? Want to introduce modeling in an intro class?
Check out this web-app, activities, and code (in case you want to spin off your own)..
Thanks @jansei.bsky.social for working with me on this, which was inspired by his HBV-lite teaching software!
dx.doi.org/10.1002/hyp....
Check out this web-app, activities, and code (in case you want to spin off your own)..
Thanks @jansei.bsky.social for working with me on this, which was inspired by his HBV-lite teaching software!
dx.doi.org/10.1002/hyp....
Reposted by Christa Kelleher
I need everyone on Normal People internet to know that American Girl Doll Instagram is doing doll protests today. There are tiny t-shirts and signs. AND THEN I realized it's a joint protest with the Barbie ppl, where there are EVEN TINIER SIGNS.
June 14, 2025 at 10:03 PM
I need everyone on Normal People internet to know that American Girl Doll Instagram is doing doll protests today. There are tiny t-shirts and signs. AND THEN I realized it's a joint protest with the Barbie ppl, where there are EVEN TINIER SIGNS.
Reposted by Christa Kelleher
Upcoming #WARR talk on understanding carbon fluxes using reactive transport modeling + data mining
Dr. Bryn Stewart @caltech.edu
Dr. Bhavna Arora @LBNL
W 6/18, not Th 6/19 Juneteeth
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social @devonkerins.bsky.social
Dr. Bryn Stewart @caltech.edu
Dr. Bhavna Arora @LBNL
W 6/18, not Th 6/19 Juneteeth
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social @devonkerins.bsky.social
June 9, 2025 at 6:33 PM
Upcoming #WARR talk on understanding carbon fluxes using reactive transport modeling + data mining
Dr. Bryn Stewart @caltech.edu
Dr. Bhavna Arora @LBNL
W 6/18, not Th 6/19 Juneteeth
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social @devonkerins.bsky.social
Dr. Bryn Stewart @caltech.edu
Dr. Bhavna Arora @LBNL
W 6/18, not Th 6/19 Juneteeth
Register: psu.zoom.us/meeting/regi...
@waterbarnes.bsky.social @devonkerins.bsky.social
Reposted by Christa Kelleher
My Canadian university, Queen's, is offering TWENTY 4-year funded PhDs (40k CAD/yr) for a student of ANY citizenship who has been accepted at a top 100 US university but have had offer rescinded OR are reconsidering offer due to US policy.
Details found here👇
www.queensu.ca/grad-postdoc...
Details found here👇
www.queensu.ca/grad-postdoc...
Queen’s Special U.S. Doctoral Recruitment Initiative | School of Graduate Studies and Postdoctoral AffairsDown arrowDown arrowDown arrowDown arrowDown arrowDown arrowDown arrowDown arrowDown arrowDown...
Queen’s University is a globally engaged, research-intensive institution dedicated to attracting and supporting exceptional PhD students who will significantly advance our research mission.
www.queensu.ca
June 5, 2025 at 3:31 PM
My Canadian university, Queen's, is offering TWENTY 4-year funded PhDs (40k CAD/yr) for a student of ANY citizenship who has been accepted at a top 100 US university but have had offer rescinded OR are reconsidering offer due to US policy.
Details found here👇
www.queensu.ca/grad-postdoc...
Details found here👇
www.queensu.ca/grad-postdoc...