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Clark Gray

@clarklgray.bsky.social
1.5K followers 534 following 154 posts

Professor of Geography and Environment, UNC-Chapel Hill clarkgray.web.unc.edu

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Reposted by Clark Gray
William Sturkey @william-sturkey.bsky.social · 5h
A great political imbalance in higher ed: Conservative center fires guy for political reasons, and he keeps his mouth shut for the core mission Lib Arts guy gets sabattical and parental leave and uses that time to build a new career by trashing the school: www.theassemblync.com/news/educati...
theassemblync.com
Fired UNC Civics Associate Dean Breaks His Silence on Investigation
David Decosimo objected to a Wall Street Journal editorial. The paper didn’t publish his response—which he says is part of the problem.
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Sam Huckstep @samhuckstep.bsky.social · 8h
Nifty new research from the IOM and pals: 'we introduce Flow, a global dataset of bilateral migration flows by sex at annual resolution since 1960' (to 2024)
nature.com
Annual Migration Flow Estimates by Sex between all Countries since 1960 - Scientific Data
Scientific Data - Annual Migration Flow Estimates by Sex between all Countries since 1960
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Heather Randell @heatherrandell.bsky.social · 07/10/2026
Come work with me! The Humphrey School of Public Affairs at the University of Minnesota is hiring an associate or full professor in the urban and regional planning program with expertise in housing policy or neighborhood affordability. More info: hr.umn.edu/Jobs/Find-Job Job Opening Number: 376233
Humphrey School website imagine saying "A Community Committed to Changing the World"
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Clark Gray @clarklgray.bsky.social · 06/10/2026
18th Conference of Young Demographers will happen on 3–5 February 2027, Prague The conference is fully on-site and in-person. The Call for Papers is now open and you can find absolutely all necessary information here. Submit your abstracts until Monday, 26 October 2026.
youngdemographers.github.io
Conference
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Proceedings of the National Academy of Sciences @pnas.org · 05/10/2026
Forest fragmentation increases local temperatures in temperate and tropical zones and has a stronger effect on local temperature than overall forest cover, according to a study of high-resolution remote-sensing data from around the world. In PNAS: ow.ly/QZjT50ZUyMj
Fragmented forest patches in the Loess Plateau region of north-central China.
CREDIT: Tiewei Xie (Fudan University, Shanghai, China).
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Maternal, Adolescent, Reproductive & Child Health Centre, LSHTM @lshtm-march.bsky.social · 05/10/2026
🌡️ Extreme heat during pregnancy can reduce antenatal care in low-and middle-income countries. Join @jasminabdelghany.bsky.social to learn more about the unequal impacts of intensifying heat on antenatal healthcare use in LMICs. 📆 13 October at 12:45 BST 📍LSHTM & Online 👉 bit.ly/4zwexb5
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Conrad Hackett @conradhackett.bsky.social · 05/10/2026
Harvard's population program is recruiting postdocs popcenter.harvard.edu/postdoctoral... Seems like a great opportunity!
popcenter.harvard.edu
Postdoctoral Fellowships – Harvard Center for Population and Development Studies
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NBER @nber.org · 04/10/2026
Global warming raises mortality through more than heat: 1°C increases annual deaths by 2.5 per 1,000, and adverse economic effects explain two-thirds of the gap, from @AdrienBilal, @drkaenzig, and Krzysztof Lisiecki www.nber.org/papers/w35832
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NBER @nber.org · 03/10/2026
Population projections often assume that future fertility rates will stop declining after falling below some threshold, but that is at odds with global historical patterns, from Diane Coffey, @MikeGeruso, Dean Spears, and Sangita Vyas www.nber.org/papers/w35824
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Philip N Cohen @philipncohen.com · 16/09/2026
186. On an average day in 2025, 6308 non-Hispanic Whites died & 4910 non-Hispanic Whites were born*, for a natural decrease of 1399; 2176 other people died & 4971 other people were born for a natural increase of 2795. Daily net natural change of +4194 other people. *by mother's race/ethnicity
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Erin J. Wamsley 🧠📈😴 @wamsleylab.bsky.social · 03/10/2026
The fiscal year is over. The dying Social, Behavioral, and Economic division of NSF ended up awarding 90 total grants this year, as opposed to ~700-800 in recent past years. Source: grantwitness.org/nsf/analyses...
The graph shows the cumulative number of awards made by month across this fiscal year, as compared to the last 6 fiscal years. The line for this year is total flat until June, but then finally gets up to 91 by October. In prior years the increase starts building earlier and ends on average in the 700-800 range (with variability, last year was only between 400-500).
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NBER @nber.org · 01/10/2026
An Atlantic Meridional Overturning Circulation collapse may overturn some of the effects of global warming—easing its impact on developing countries and instead harming more advanced economies, from @jlcruzalv, @klausvanieper, and @HansbergRossi www.nber.org/papers/w35811
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JD Daw @jddaw.bsky.social · 01/10/2026
Funding rates at NIH for ESIs fell by a third (R01) and half (R21) over the last two fiscal years (i.e. those partially or fully controlled by the current administration). These policies are going to have ripple effects on science for years to come.
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Matt Barnum @mattbarnum.bsky.social · 01/10/2026
New-  We've all heard about the spiraling, skyrocketing, and soaring rates of college tuition. In reality, undergrad net tuition education has been stagnant or even declining for roughly two decades. So why do very few people know this? www.chalkbeat.org/2026/10/01/w...
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c0nc0rdance @c0nc0rdance.bsky.social · 01/10/2026
You've seen fireworks that look like jellyfish, but what about a jellyfish that looks like fireworks? The E/V Nautilus filmed this rare Halitrephes maasi jellyfish glowing like a firework at a depth of 4,019 feet (1,225 meters) off the coast of Baja California, Mexico. (📷: Ocean Exploration Trust)
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Sasha Gusev @sashagusevposts.bsky.social · 01/10/2026
A searchable mapping between NIH study sections and program officers that doesn't suck. (Claude one-shot) sashagusev.github.io/po-study-sec...
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Charles Kenny @charlesjkenny.bsky.social · 30/09/2026
We are letting thousands die without even the recognition that their deaths happened. The humanitarian system cannot work more effectively if it does not know where it is working and where it is not, and lack of data is freeing everyone (donors, implementers, perpetrators) from accountability.
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YY Ahn @yyahn.bsky.social · 29/09/2026
UVA School of Data Science has two open rank faculty positions open this year. Join us! - NLP: apply.interfolio.com/191213 - Data and Society: apply.interfolio.com/191214
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Rebecca R Helm @rebeccarhelm.bsky.social · 30/09/2026
Magical creatures don’t exist, eh? Roughly 400 million years ago, before the birth of trees, there were giant mystery cones called “Prototaxites,” which grew nearly 30 feet tall. We literally have no idea what they were. Plant: no Mushroom: no Animal: no Tell me this isn’t a little bit magic
Sunset with giant mystery cones Prototaxites https://www.ibtimes.co.uk/prototaxites-fossil-explained-why-this-prehistoric-colossus-still-baffles-scientists-1773173
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Trevor A. Branch @trevorabranch.bsky.social · 30/09/2026
When you are convinced it's AI generated and then discover it is not and now you doubt everything
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Proceedings of the National Academy of Sciences @pnas.org · 29/09/2026
One of the most-viewed PNAS articles in the last week is “Spatially refined satellite gravimetry captures human signatures in global terrestrial water storage trends.” Explore the article here: ow.ly/ytuh50ZSNBp For more trending articles, visit ow.ly/YSuq50ZSNBo.
A multi-part figure with panels A to I showing bar graphs of results from continental-scale multivariate regression and local bivariate spatial association, used for TWS trend attribution.
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Proceedings of the National Academy of Sciences @pnas.org · 29/09/2026
As the climate warms, compound drought and heat wave events are becoming more frequent and intense across the contiguous United States. Areas at high risk for such events are disproportionately poor, unhealthy, and rural. In PNAS: ow.ly/nqfA50ZSNx3
Drought-damaged corn and cracked soil.
CREDIT: Bob Nichols/USDA.
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Mongabay @mongabay.com · 29/09/2026
A new global database mapping 40 years of satellite and ocean data reveals that compound marine heatwaves and acidification extremes occur more frequently than expected. Experts warn more research is urgently needed to assess their impacts on marine life and fisheries. By María Paula Rubiano A.
mongabay.cc
New global maps chart 40 years of ocean heat and acidification extremes
Between 2014 and 2015, a marine heatwave known as “The Blob” warmed an area of the Pacific Ocean larger than the United States and Mexico combined. The massive event fueled toxic algae blooms,…
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Clark Gray @clarklgray.bsky.social · 29/09/2026
My joke with my wife is "Why are these children so willful??" She and I are both well-known PITAs 😂
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Clark Gray @clarklgray.bsky.social · 29/09/2026
1-year remote population health postdoc at Stanford on "the causal effect of shingles vaccination on cognition, the health effects of sodium intake, and population health issues more generally."
careersearch.stanford.edu
Social Science Research Scholar (1-Year Fixed Term) (Remote Opportunity)
The Division of Primary Care and Population Health seeks to serve our community through caring, learning, and innovation for the whole person through all stages of live. While engaged in practice and ...
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Jeremy Markovich @ncrabbithole.com · 25/09/2026
once again, Highway 12 on Pea Island in the Outer Banks is basically sitting in the ocean because of a nor'easter
NCDOT picture of Highway 12 on Pea Island
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Inside Higher Ed @insidehighered.com · 25/09/2026
UNC Chapel Hill Trustee Blames Law Professor for Infrastructure Budget Woes bit.ly/4z0C2bW
A photo of UNC Chapel Hill’s campus.
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Karen Benjamin Guzzo @karenguzzo.bsky.social · 25/09/2026
UNC Sociology is hiring an OPEN-RANK position for a Population Health and Aging scholar! We are especially interested in more advanced and senior scholars. Full position details, qualifications, and application instructions are available at: unc.peopleadmin.com/postings/325...
Position Summary: The Department of Sociology at the University of North Carolina at Chapel Hill invites applications for an open rank (tenure-track) faculty position to begin July 1, 2027. We are seeking candidates with research and teaching interests in population health and aging. This is the first of an anticipated five related searches over the next four years in a new UNC-Chapel Hill initiative on biosocial health and aging. We seek applications from scholars who exhibit a record of strong and innovative research and excellence in teaching. Candidates are expected to hold a Ph.D. in Sociology or a related field by July 1, 2027.
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Reposted by Clark Gray
Bernoid @bernoid.bsky.social · 25/09/2026
Morning! #FungiFriday #FungiFriends
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Clark Gray @clarklgray.bsky.social · 24/09/2026
"The new renovation would effectively cover the area now known as the Pit and replace it with a hardscape platform." 😢
dailytarheel.com
Board of Trustees approves renovation of the Pit
The board approved an approximately $10 million renovation project that would cover the Pit with a wooden platform.
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Clark Gray @clarklgray.bsky.social · 24/09/2026
iussp.org/en/ipc2029-c...
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Daniel de Kadt @dandekadt.bsky.social · 24/09/2026
Very excited: Cornell Arts & Sciences seeks up to 5 postdoctoral scholars working on AI and the humanities/social sciences. Not involved in selection but could serve as a faculty sponsor if you are working on topics related to ~"how to do social science in the age of AI." Happy to chat.
academicjobsonline.org
Cornell University, College of Arts and Sciences Fellowships
Job #AJO32791, Postdoctoral Associate, AI in Social Sciences & Humanities, College of Arts and Sciences Fellowships, Cornell University, Ithaca, New York, US
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Sara Ronnkvist @sararonnkvist.bsky.social · 24/09/2026
Beyond excited to announce that Grace Venechuk and I had a paper come out yesterday! We used 9 (!!) publicly available data sources to analyze associations between population health, wildfire smoke exposure, and county-level occupational compositions. link.springer.com/article/10.1...
link.springer.com
Fired up for work: Examining the relationship between environmentally-vulnerable work and population health outcomes in the context of wildfire smoke exposures - Population and Environment
Despite significant attention towards spatial health disparities and the mechanisms underlying them, less is known about how wildfire smoke may be associated with these disparities and how it may inte...
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Dakota Smith @weatherdak.bsky.social · 24/09/2026
Hurricane Polo is looking extraordinary tonight. Sheesh.
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Paul Byrne @theplanetaryguy.com · 23/09/2026
Another stunner from JWST—this time part of a *much* larger scene I'll post later. This portion is made up of stars and protostars in a cluster about 1,000 lightyears from Earth. The bright, multi-point features are nearby stars. The smaller features in the background are other galaxies.
From the source: "A star-forming nebula that contains young stars called protostars. Two of these protostars are shooting out long jets that are colliding with the nebula, creating glowing, colourful outflows. A few other protostars create orange and red areas in the nebula. Most of the image is covered by blue gas, with brighter areas, denser clouds and dark gaps; the bottom-left corner contains greenish-yellow gas."
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Zeke Hausfather @zekehausfather.com · 23/09/2026
Updated version of the impacts map that incorporates the latest runs from 13 dynamical models to refine the areas affected by this year's event:
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Population Association of America @popassocamerica.bsky.social · 23/09/2026
Register now for the first in our Virtual Workshop Series! 💻️ This 2 parter: Population and Environment Research will be on Oct. 6 and Oct. 13 and will cover the Three Applications of Public Population Data, and Linking Gridded Environmental Data to Public Population Data. buff.ly/tzmT2pl
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Karen Benjamin Guzzo @karenguzzo.bsky.social · 22/09/2026
@uncpopcenter.bsky.social is hiring a postdoc for our "From Biological to Social Processes" T32! Applications due Nov 20, 2026, preferred start date Jan 2027. Learn more about our postdoc training program: www.cpc.unc.edu/training/bio... Apply here: unc.peopleadmin.com/postings/325...
The Carolina Population Center at the University of North Carolina at Chapel Hill invites applications for a Postdoctoral Scholar position with the NICHD-funded T32 training program, ‘From Biological to Social Processes: Interdisciplinary Training in Life Course Research’. This program aims to promote and support interdisciplinary training of PhD students and postdoctoral scholars from both the social sciences and biological/health sciences.

The goal of this program is to train scientists to move across disciplinary boundaries and employ creative and integrative approaches to understanding the complex factors that influence health and health disparities across the life course. Trainees will have the opportunity to receive interdisciplinary mentorship and training in a wide array of methods and content areas, ranging from social inequalities to biological processes. Trainees will identify a co-preceptor team comprised of a mentor from their home discipline and another representing their new interdisciplinary interest area from among the current training faculty.

The initial term of appointment is one year, with a preferred start date in January 2027 (negotiable). Reappointment for a second year is possible with continued funding.

Interested applicants must apply through the UNC HR Link and submit the supplemental application package linked in the posting. Application materials are due by November 20th, 2026. 

Information about the postdoctoral training program and training faculty can be found on our website. Questions can be directed to the Training Program Manager, Margaret Swingler, at margaret.swingler@unc.edu.
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Corey Sparks @coreysparks1.bsky.social · 22/09/2026
I’m recruiting a PhD student to come work with me at UT San Antonio. I have 3 years of support, so this would be good for someone with a masters degree. If you’re interested in working on Bayesian methods in demographic research, spatial analysis, and using AI tools for social science research
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Heather Randell @heatherrandell.bsky.social · 18/09/2026
Journal editors: I just got an R&R with 3 reviews, and some of the reviews seemed a bit off to me and requested a LOT. I put text from each review into Pangram, which is supposed to be a high quality AI detector, and it appears that 2 of the 3 are AI generated. How do you handle stuff like this?
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Michael Clemens @mclem.org · 18/09/2026
"Spain's self-inflicted migration crisis" by the brilliant and trenchant Hein de Haas A concise and exposition of why border crises, a product of policy, happen and will continue to happen —>
heindehaas.substack.com
Spain’s self-inflicted migration crisis
What really drives migration from Morocco
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Karen Benjamin Guzzo @karenguzzo.bsky.social · 17/09/2026
@prbdata.bsky.social's 2026 World Population Data Sheet is here! It's interactive and lovely and full of all sorts of wonderful demographic data!
wpds.prb.org
World Population Data Explorer (2026 Data)
Explore population and health indicators for 200+ countries and territories.
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Christos Constantinidis @cconstan.bsky.social · 16/09/2026
After last year's collapse of NIH funding rates I thought things couldn't get any worse. Shifting to multi-year awards could mean that fewer funds would be needed to pay already active grants in 2026. I was wrong. With less than a month left in the fiscal year we are on pace for a new all time low.
Graph from https://grantwitness.org/nih/analyses/agency-pulse-nih-grantmaking
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VoxDev @voxdev.bsky.social · 16/09/2026
Because rural migrants are deterred far more by distance than they are drawn by higher pay, nearby towns – despite offering lower earnings than cities – end up absorbing far more migrants and doing more to reduce poverty, making them a decisive channel for inclusive urban growth.
KHDS baseline villages and urban destinations across Tanzania
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NOVAFRICA @novafrica.bsky.social · 15/09/2026
🚨 New article in the Journal of the European Economic Association “From Sea to Shore: The Impact of Ocean Acidification on Child Health” #AlexArmand @novafrica.bsky.social #NovaSBE and @ivankimt.bsky.social #BocconiUniversity 🔗 tinyurl.com/56bjk3cd 📄 lnkd.in/eQM8mzeP 🎥 lnkd.in/eyyq5JzD
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Science Magazine @science.org · 14/09/2026
Social science studies may promise anonymity, but new research finds participant identities often lurk in public data. scim.ag/46nOpTa
scim.ag
Social science studies may promise anonymity, but participant identities often lurk in public data
One-fifth of data sets intended to support replication breached privacy standards, study finds
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Michael Clemens @mclem.org · 14/09/2026
A federal judge just enjoined one of the US Administration’s sharpest attacks on international students. The ruling references research by me & my stellar co-authors six times. Facts matter. Facts are necessary for democracy, accountability, and the rule of law. Research delivers them.
storage.courtlistener.com
Memorandum & Order – #50 in Presidents' Alliance on Higher Education and Immigration v. United States Department of Homeland Security (D. Mass., 1:26-cv-13799) – CourtListener.com
District Judge F. Dennis Saylor, IV: MEMORANDUM AND ORDER ON MOTION FOR PRELIMINARY INJUNCTION. Plaintiffs' motion for APA § 705 relief, a preliminary injunction, or, in the alternative, summary judgm...
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Matt Barnum @mattbarnum.bsky.social · 14/09/2026
Contrary to what I sense is a vague conventional wisdom: the recent growth in educational attainment is not at all historically anomalous. lkatz.scholars.harvard.edu/sites/g/file...
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NBER @nber.org · 14/09/2026
Federal flood buyouts help households adapt to climate risk. But households of color receive at least 6 percent less compensation, with stark differences in where families relocate, from Kay Jowers, Lala Ma, and Christopher D. Timmins www.nber.org/papers/w35726
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Casey Ivanovich @ccivanovich.bsky.social · 10/09/2026
But this is starting to change! Extreme heat seasons have lengthened in about half of global land areas, and this lengthening is asymmetric. Most regions have experienced a larger expansion in either the months before or after their local heat season (analogous to spring and fall). (3/6)
Six panel figure showing maps of the change in the fraction of extreme heat events happening in the shoulder seasons. Top row (blue to red colorbar): Change in the fraction of annual events occurring in the pre-season from the early to late period. Middle row (blue to red colorbar): Change in the fraction of annual events occurring in the post-season from the early to late period. Bottom row (green to purple colorbar): Difference in the fractional change in shoulder season extreme heat events (post-season minus pre-season). Black shading indicates grid cells without a consecutive 3-month heat season.
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