Clark Gray
@clarklgray.bsky.social
Professor of Geography and Environment, UNC-Chapel Hill
https://clarkgray.web.unc.edu/
https://clarkgray.web.unc.edu/
Pinned
Reposted by Clark Gray
Webinar: Considerations for Temperature in Public Health Studies
Join us to learn how to define an exposure, choose a dataset, and model health outcomes. For those w/some background in epidemiology but new to working with temp exposures.
📅 Dec 10 | 🕑 2:00–3:00 PM ET
🔗 buff.ly/sOUbNWV
Join us to learn how to define an exposure, choose a dataset, and model health outcomes. For those w/some background in epidemiology but new to working with temp exposures.
📅 Dec 10 | 🕑 2:00–3:00 PM ET
🔗 buff.ly/sOUbNWV
December 3, 2025 at 6:04 PM
Webinar: Considerations for Temperature in Public Health Studies
Join us to learn how to define an exposure, choose a dataset, and model health outcomes. For those w/some background in epidemiology but new to working with temp exposures.
📅 Dec 10 | 🕑 2:00–3:00 PM ET
🔗 buff.ly/sOUbNWV
Join us to learn how to define an exposure, choose a dataset, and model health outcomes. For those w/some background in epidemiology but new to working with temp exposures.
📅 Dec 10 | 🕑 2:00–3:00 PM ET
🔗 buff.ly/sOUbNWV
Reposted by Clark Gray
Is your head coach's girlfriend filing FOIA requests on your school's top comms official a good look? Asking for a friend
December 3, 2025 at 4:58 PM
Is your head coach's girlfriend filing FOIA requests on your school's top comms official a good look? Asking for a friend
Reposted by Clark Gray
Meet the head of a federal panel expected to upend the childhood vaccine schedule later this week. Dr. Kirk Milhoan believes that Covid was made in North Carolina and deployed to China as a bioweapon ... among other conspiracy theories. www.ms.now/news/rfk-jr-...
December 3, 2025 at 1:22 PM
Meet the head of a federal panel expected to upend the childhood vaccine schedule later this week. Dr. Kirk Milhoan believes that Covid was made in North Carolina and deployed to China as a bioweapon ... among other conspiracy theories. www.ms.now/news/rfk-jr-...
Reposted by Clark Gray
Climate change is killing workers. The fix is simple.
Water. Shade. Rest Breaks.
Our new Health Affairs study: California's heat standard was associated with a 33% drop in heat-related deaths among outdoor workers.
Now it's time for OSHA to adopt a federal heat standard.
tinyurl.com/4wejjhkd
Water. Shade. Rest Breaks.
Our new Health Affairs study: California's heat standard was associated with a 33% drop in heat-related deaths among outdoor workers.
Now it's time for OSHA to adopt a federal heat standard.
tinyurl.com/4wejjhkd
December 2, 2025 at 10:31 PM
Climate change is killing workers. The fix is simple.
Water. Shade. Rest Breaks.
Our new Health Affairs study: California's heat standard was associated with a 33% drop in heat-related deaths among outdoor workers.
Now it's time for OSHA to adopt a federal heat standard.
tinyurl.com/4wejjhkd
Water. Shade. Rest Breaks.
Our new Health Affairs study: California's heat standard was associated with a 33% drop in heat-related deaths among outdoor workers.
Now it's time for OSHA to adopt a federal heat standard.
tinyurl.com/4wejjhkd
Reposted by Clark Gray
Larry Summers banned from the American Economics Association conferences and journals. Can't referee or be an editor for AEA journals.
National Bureau of Economic Research, your turn.
National Bureau of Economic Research, your turn.
December 2, 2025 at 4:47 PM
Larry Summers banned from the American Economics Association conferences and journals. Can't referee or be an editor for AEA journals.
National Bureau of Economic Research, your turn.
National Bureau of Economic Research, your turn.
Reposted by Clark Gray
What can we learn about disaster impacts from case studies that often lack elements of a "gold standard" natural experimental research design? Review by Elizabeth Fussell, Kate Burrows & @narayansastry.bsky.social
wires.onlinelibrary.wiley.com/doi/full/10....
wires.onlinelibrary.wiley.com/doi/full/10....
Learning From Natural Experiments to Accelerate Demographic Research on Climate‐Related Threats to Human Populations
What makes a gold standard natural experiment? Research on disaster impacts often relies on case studies which lack elements of a natural experimental research design. Some or all of these elements m...
wires.onlinelibrary.wiley.com
December 2, 2025 at 4:21 PM
What can we learn about disaster impacts from case studies that often lack elements of a "gold standard" natural experimental research design? Review by Elizabeth Fussell, Kate Burrows & @narayansastry.bsky.social
wires.onlinelibrary.wiley.com/doi/full/10....
wires.onlinelibrary.wiley.com/doi/full/10....
My dad (EPA toxicologist for 50 years) in WaPo!
How these chemicals went everywhere and threatened our health
These chemicals continue to contaminate Americans’ food, decades after scientists recognized their dangers.
www.washingtonpost.com
December 2, 2025 at 1:59 PM
My dad (EPA toxicologist for 50 years) in WaPo!
Reposted by Clark Gray
Devastating cuts to #NSF, #NIH and here's where:
Social sciences down 46%, but also "fewer new grants awarded in biology, geosciences, STEM education, computer science and engineering, math, physics, technology and innovation."
Dismantling what makes America great.
www.nytimes.com/interactive/...
Social sciences down 46%, but also "fewer new grants awarded in biology, geosciences, STEM education, computer science and engineering, math, physics, technology and innovation."
Dismantling what makes America great.
www.nytimes.com/interactive/...
December 2, 2025 at 11:14 AM
Devastating cuts to #NSF, #NIH and here's where:
Social sciences down 46%, but also "fewer new grants awarded in biology, geosciences, STEM education, computer science and engineering, math, physics, technology and innovation."
Dismantling what makes America great.
www.nytimes.com/interactive/...
Social sciences down 46%, but also "fewer new grants awarded in biology, geosciences, STEM education, computer science and engineering, math, physics, technology and innovation."
Dismantling what makes America great.
www.nytimes.com/interactive/...
Reposted by Clark Gray
TX Tech has a flow chat for guidance on what can be taught in the university system. Two things:
1. Very little content seems to be permitted. This is partisan control of the curriculum.
2. I would not enjoy teaching under these conditions, but I really would not want to be a Chair or Dean.
1. Very little content seems to be permitted. This is partisan control of the curriculum.
2. I would not enjoy teaching under these conditions, but I really would not want to be a Chair or Dean.
December 1, 2025 at 10:55 PM
TX Tech has a flow chat for guidance on what can be taught in the university system. Two things:
1. Very little content seems to be permitted. This is partisan control of the curriculum.
2. I would not enjoy teaching under these conditions, but I really would not want to be a Chair or Dean.
1. Very little content seems to be permitted. This is partisan control of the curriculum.
2. I would not enjoy teaching under these conditions, but I really would not want to be a Chair or Dean.
Reposted by Clark Gray
Interesting paper highlight that binning can be misspecified in panel settings - this drives misinterpretation of extreme temperature shocks. #linkoftheday
www.dropbox.com/scl/fi/1ya6z...
www.dropbox.com/scl/fi/1ya6z...
November 29, 2025 at 1:34 PM
Interesting paper highlight that binning can be misspecified in panel settings - this drives misinterpretation of extreme temperature shocks. #linkoftheday
www.dropbox.com/scl/fi/1ya6z...
www.dropbox.com/scl/fi/1ya6z...
Reposted by Clark Gray
Oh, joy: "Provost Dialogue: Use of AI in the Promotion Process ... we have a unique opportunity to consider how AI tools and their use intersect with the promotion and evaluative processes."
December 1, 2025 at 5:45 PM
Oh, joy: "Provost Dialogue: Use of AI in the Promotion Process ... we have a unique opportunity to consider how AI tools and their use intersect with the promotion and evaluative processes."
Reposted by Clark Gray
Come visit MPIDR in ☀️Summer 2026☀️
📣Call for Application for the "Population and Social Data Science Summer Incubator Program"
📅☀️June 8th – August 21st, 2026☀️
🗺️MPIDR in Rostock, Germany
Application Deadline: Jan 14, 2026
Apply here and learn more:
incubator.demogr.mpg.de
📣Call for Application for the "Population and Social Data Science Summer Incubator Program"
📅☀️June 8th – August 21st, 2026☀️
🗺️MPIDR in Rostock, Germany
Application Deadline: Jan 14, 2026
Apply here and learn more:
incubator.demogr.mpg.de
December 1, 2025 at 3:22 PM
Come visit MPIDR in ☀️Summer 2026☀️
📣Call for Application for the "Population and Social Data Science Summer Incubator Program"
📅☀️June 8th – August 21st, 2026☀️
🗺️MPIDR in Rostock, Germany
Application Deadline: Jan 14, 2026
Apply here and learn more:
incubator.demogr.mpg.de
📣Call for Application for the "Population and Social Data Science Summer Incubator Program"
📅☀️June 8th – August 21st, 2026☀️
🗺️MPIDR in Rostock, Germany
Application Deadline: Jan 14, 2026
Apply here and learn more:
incubator.demogr.mpg.de
Reposted by Clark Gray
We first note that hand-wringing about the decline in US college enrollments has mistakenly linked such declines to the price of four-year colleges.
But the decline is entirely driven by two-year community colleges (and by for-profit colleges). The four-year sector is the dog that didn't bark.
But the decline is entirely driven by two-year community colleges (and by for-profit colleges). The four-year sector is the dog that didn't bark.
December 1, 2025 at 1:34 PM
We first note that hand-wringing about the decline in US college enrollments has mistakenly linked such declines to the price of four-year colleges.
But the decline is entirely driven by two-year community colleges (and by for-profit colleges). The four-year sector is the dog that didn't bark.
But the decline is entirely driven by two-year community colleges (and by for-profit colleges). The four-year sector is the dog that didn't bark.
Reposted by Clark Gray
One of the fun southern #CostaRica specialties, the Speckled Tanager. In San Vito, Puntarenas.
#birds #green #nature
#birds #green #nature
November 27, 2025 at 3:00 AM
One of the fun southern #CostaRica specialties, the Speckled Tanager. In San Vito, Puntarenas.
#birds #green #nature
#birds #green #nature
Reposted by Clark Gray
I attended a lovely invited @wikipedia.org page editing meeting today. It's been a while since I did one, and relearning how it works was great.
Apologies for topic vagueness, but just giving a shout out to such a highly used resource in health. Yes, really.
Apologies for topic vagueness, but just giving a shout out to such a highly used resource in health. Yes, really.
a white puzzle with the letters w and i written on it
Alt: a white puzzle with the letters w and i written on it
media.tenor.com
November 27, 2025 at 3:53 AM
I attended a lovely invited @wikipedia.org page editing meeting today. It's been a while since I did one, and relearning how it works was great.
Apologies for topic vagueness, but just giving a shout out to such a highly used resource in health. Yes, really.
Apologies for topic vagueness, but just giving a shout out to such a highly used resource in health. Yes, really.
Reposted by Clark Gray
This means NSF dissertation improvement grants in the social sciences are simply...not happening.
NEW from me - NSF cancels grant scheme for social science research.
Seems the NSF quietly archived ALL calls for DDRIG grants in the SBE directorate. This is a massive blow for PhD students wanting to do cutting-edge social science research. 🏺🧪
Seems the NSF quietly archived ALL calls for DDRIG grants in the SBE directorate. This is a massive blow for PhD students wanting to do cutting-edge social science research. 🏺🧪
Today's biggest science news: Doomed comet explodes | Comet 3I/ATLAS course alteration | Dark matter detected?
Wednesday, Nov. 26, 2025: Your daily feed of the biggest discoveries and breakthroughs making headlines.
www.livescience.com
November 27, 2025 at 1:16 PM
This means NSF dissertation improvement grants in the social sciences are simply...not happening.
Reposted by Clark Gray
Open PhD position here in UMN forest resources in the analysis of forest change in tropical mountains, with a focus on geospatial analysis. Applications due Dec. 8. More information and instructions on how to apply here: docs.google.com/forms/d/e/1F...
docs.google.com
November 27, 2025 at 1:19 PM
Open PhD position here in UMN forest resources in the analysis of forest change in tropical mountains, with a focus on geospatial analysis. Applications due Dec. 8. More information and instructions on how to apply here: docs.google.com/forms/d/e/1F...
Reposted by Clark Gray
Jakarta, Indonesia’s vibrant, overcrowded and sinking capital, has displaced Tokyo as the most populated city in the world, according to the UN, thanks to its new way of counting urban populations.
Jakarta Overtakes Tokyo as World’s Largest City, UN Report Says
The capital of Indonesia surpassed Tokyo as the world’s most populous city after the United Nations overhauled how it measures urban populations.
nyti.ms
November 26, 2025 at 2:55 PM
Jakarta, Indonesia’s vibrant, overcrowded and sinking capital, has displaced Tokyo as the most populated city in the world, according to the UN, thanks to its new way of counting urban populations.
Reposted by Clark Gray
This is wild!
Seven-day-ahead weather forecasts in high-income countries are more accurate than one-day-ahead weather forecasts in low-income countries.
Seven-day-ahead weather forecasts in high-income countries are more accurate than one-day-ahead weather forecasts in low-income countries.
November 25, 2025 at 9:07 PM
This is wild!
Seven-day-ahead weather forecasts in high-income countries are more accurate than one-day-ahead weather forecasts in low-income countries.
Seven-day-ahead weather forecasts in high-income countries are more accurate than one-day-ahead weather forecasts in low-income countries.
Reposted by Clark Gray
Policy should focus not on fertility targets but on how “societies can remain prosperous, equitable & sustainable under conditions of low fertility, population aging & population decline. That is a question better aligned with what we actually know—and with the uncertainties we must acknowledge”
The demographic future that we do not know about
The demographic future of the planet has rarely been as questioned as it is today. For much of the 20th century, the demographic transition theory provided a clear narrative: With modernization and de...
www.science.org
November 21, 2025 at 12:21 PM
Policy should focus not on fertility targets but on how “societies can remain prosperous, equitable & sustainable under conditions of low fertility, population aging & population decline. That is a question better aligned with what we actually know—and with the uncertainties we must acknowledge”
Reposted by Clark Gray
📣 Applications open for GENIUS 2026, a 3-day mentoring workshop at Penn State for rising third- and fourth-year students underrepresented in geography. 🌍
📅 May 27–29.
Apply by Feb. 15, 2026: www.geog.psu.edu/geniusworkshop
📅 May 27–29.
Apply by Feb. 15, 2026: www.geog.psu.edu/geniusworkshop
November 21, 2025 at 12:58 AM
📣 Applications open for GENIUS 2026, a 3-day mentoring workshop at Penn State for rising third- and fourth-year students underrepresented in geography. 🌍
📅 May 27–29.
Apply by Feb. 15, 2026: www.geog.psu.edu/geniusworkshop
📅 May 27–29.
Apply by Feb. 15, 2026: www.geog.psu.edu/geniusworkshop
Reposted by Clark Gray
Here is a comparison for the world population.un.org/wup/countryp...
November 20, 2025 at 2:10 PM
Here is a comparison for the world population.un.org/wup/countryp...
Reposted by Clark Gray
Sara Ghebremicael at @uncpopcenter.bsky.social presenting her work on conflict and climate drivers of migration in northern Ethiopia at Wittgenstein Centre conference
November 20, 2025 at 8:44 AM
Sara Ghebremicael at @uncpopcenter.bsky.social presenting her work on conflict and climate drivers of migration in northern Ethiopia at Wittgenstein Centre conference
Reposted by Clark Gray
New pre-print! Brazil Data Commons
arxiv.org/abs/2511.11755
Collaborative work led by Isadora Cristina with Ramon Gonze, Jônatas Santos, Julio Reis, Mário Alvim, and Fabrício Benevenuto.
Brazil Data Commons: A Platform for Unifying and Integrating Brazil's Public Data
arxiv.org/abs/2511.11755
Collaborative work led by Isadora Cristina with Ramon Gonze, Jônatas Santos, Julio Reis, Mário Alvim, and Fabrício Benevenuto.
Brazil Data Commons: A Platform for Unifying and Integrating Brazil's Public Data
Brazil Data Commons: A Platform for Unifying and Integrating Brazil's Public Data
The fragmentation of public data in Brazil, coupled with inconsistent standards and limited interoperability, hinders effective research, evidence-based policymaking and access to data-driven insights...
arxiv.org
November 19, 2025 at 8:00 PM
New pre-print! Brazil Data Commons
arxiv.org/abs/2511.11755
Collaborative work led by Isadora Cristina with Ramon Gonze, Jônatas Santos, Julio Reis, Mário Alvim, and Fabrício Benevenuto.
Brazil Data Commons: A Platform for Unifying and Integrating Brazil's Public Data
arxiv.org/abs/2511.11755
Collaborative work led by Isadora Cristina with Ramon Gonze, Jônatas Santos, Julio Reis, Mário Alvim, and Fabrício Benevenuto.
Brazil Data Commons: A Platform for Unifying and Integrating Brazil's Public Data
Reposted by Clark Gray
This morning Andy Tatem is speaking at the #humanplanetforum sharing our Global 2 new high-resolution population datasets - as the UN launches World Urbanization Prospects 2025.
Watch live: https://webcast.ec.europa.eu/geo-human-planet-forum-2025-25-11-19
Watch live: https://webcast.ec.europa.eu/geo-human-planet-forum-2025-25-11-19
November 19, 2025 at 11:19 AM
This morning Andy Tatem is speaking at the #humanplanetforum sharing our Global 2 new high-resolution population datasets - as the UN launches World Urbanization Prospects 2025.
Watch live: https://webcast.ec.europa.eu/geo-human-planet-forum-2025-25-11-19
Watch live: https://webcast.ec.europa.eu/geo-human-planet-forum-2025-25-11-19