James P. Collins

@jpcollins.me

UNC Planning PhD candidate studying geographies of climate risk and (im)mobility — jpcollins.me

I know there is a lot going on, and not all of this is new, but numerous aspects of this OMB proposal are highly alarming and would, if enacted, effectively force American scientists receiving federal funding (which is...most of them in some capacity or another) to stop engaging with the public.

elizabethginexi.bsky.social@elizabethginexi.bsky.social · 2mo ago

Summary of Key Changes in OMB’s Proposed Federal Financial Assistance Rule. Russell Vought is going destroy American Science. elizabethginexi.substack.com/p/summary-of...

"The BOG's performance bonus to Hans comes as universities across the System have been cutting costs amid federal and state funding uncertainty. "Chancellor Lee Roberts is in the midst of cutting more than $85 million from UNC-Chapel Hill... www.wunc.org/education/20...

UNC Board Of Governors awards System President bonus worth more than 80% of his salary

The BOG's performance bonus to System President Peter Hans comes as universities across the System have been cutting costs amid federal and state funding uncertainty.

wunc.org

The future of drought isn’t just less rain. Climate change can make land drier even if rainfall doesn’t decrease. Why? Rain is falling in fewer, heavier bursts - causing more runoff + evaporation, and less water stored in soil. www.nature.com/articles/s41...

More concentrated precipitation decreases terrestrial water storage - Nature

Concentration of precipitation in large events decreases land water availability, and this effect will further increase with a future warming climate.

nature.com

A total of 13 states have tied or set all-time March heat records over the period Mar. 18-21, and one or more stations in Arizona and California have tied or broken the previous all-time U.S. heat record of 108°F each of those four days. This heatwave is in a class of its own historically!

Extreme Temperatures Around the World@extremetemps.bsky.social · 5mo ago

Mental heat moved today in the Central States with 101F in Kansas,99 in Nebraska,97 in South Dakota,Missouri and Iowa (State record trashed by 5F !) and 90 in Wyoming. Colorado also 95F ,1F from its record. 102F in Oklahoma Updated list of new March State records in 2026

"Gloria" shared this pic of herself picking strawberries in CAs Central Coast. "The water was up to my knees making it very hard to push my cart. My feet were so wet and cold, I couldn’t feel them. Growers have us harvest despite the flooding to avoid losing product." #WeFeedYou

"Gloria" shared this pic of herself picking strawberries in CAs Central Coast in a very watery row

While others are stepping back on climate, Project Drawdown is stepping up! We’re proud to announce the Climate Science Serving America Fellowship to support U.S.-based Ph.D.-level scientists & engineers focused on climate solutions for the public good. drawdown.org/news/project...

Project Drawdown launches Climate Science Serving America Fellowship to support scientists working in the public good

Fellowship seeks early- to mid-career researchers based in America who are committed to science and public expertise

drawdown.org

I have a new paper. We look at ~all stats articles in political science post-2010 & show that 94% have abstracts that claim to reject a null. Only 2% present only null results. This is hard to explain unless the research process has a filter that only lets rejections through.

It must be very hard to publish null results
Publication practices in the social sciences act as a filter that favors statistically significant results over null findings. While the problem of selection on significance (SoS) is well-known in theory, it has been difficult to measure its scope empirically, and it has been challenging to determine how selection varies across contexts. In this article, we use large language models to extract granular and validated data on about 100,000 articles published in over 150 political science journals from 2010 to 2024. We show that fewer than 2% of articles that rely on statistical methods report null-only findings in their abstracts, while over 90% of papers highlight significant results. To put these findings in perspective, we develop and calibrate a simple model of publication bias. Across a range of plausible assumptions, we find that statistically significant results are estimated to be one to two orders of magnitude more likely to enter the published record than null results. Leveraging metadata extracted from individual articles, we show that the pattern of strong SoS holds across subfields, journals, methods, and time periods. However, a few factors such as pre-registration and randomized experiments correlate with greater acceptance of null results. We conclude by discussing implications for the field and the potential of our new dataset for investigating other questions about political science.

SUPER excited to see this live in the world. In particular hugely admire this team's dedication to openness and transparency about methodology, code, assumptions. Every tool has strengths and weaknesses, but sharing openly is how the whole community can improve. Big kudos @carbonplan.org

CarbonPlan@carbonplan.org · 6mo ago

Today we’re launching Open Climate Risk, a fully open option for U.S. building-level climate risk data. It’s unique because it allows you to see not only risk scores, starting with wildfire, but also the complete underlying dataset, methods, and codebase. carbonplan.org/research/cli...

"Our main conclusion ... is that several well-cited messaging strategies reliably influence pro-environmental attitudes and behavioural intentions in the United States ... We found little evidence of heterogeneous treatment effects between Democrats and Republicans..."

A registered report megastudy on the persuasiveness of the most-cited climate messages - Nature Climate Change

How to effectively communicate climate change to the public has long been studied and debated. Through a registered report megastudy, researchers tested the ten most-cited climate change messaging str...

nature.com

New data show that business concentration has increased persistently in many countries over the past century by sales, net income, and capital, but not by employment, from Yueran Ma, Mengdi Zhang, and Kaspar Zimmermann www.nber.org/papers/w34711

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New work from our team: we mapped water table depth at 30-meter resolution across the entire continental US. That's ~8 billion grid cells, trained on over 1 million well observations. Highest-resolution estimate to date.

Map of water table depth across the continental United States at 30-meter resolution, with inset panels showing detail at 100km, 10km, and 1km scales in both eastern and western US locations. Color scale shows depth from shallow (blue) to deep (yellow) on a log scale.

rabbit hole OTD "I consider the role of animals in gentrification processes ... how the materialities of horse bodies are embodied in specific landscape changes: qualities of pasture, styles of fencing and stables ... and lead to the territorialisation and contestation of broader rural landscapes."

Horsification: Embodied gentrification in rural landscapes

In this paper, I consider the role of animals in gentrification processes, developing a conceptualisation of ‘horsification’: the proliferation of hor…

sciencedirect.com

Caveat here being that 5cm hail is listed as being where damage to buildings starts... but based on an EU study where much more of the building stock is tile roof. Asphalt shingles, obviously much more common in US, take damage and need replacement at much smaller hail sizes.

European Severe Storms Laboratory@essl-ecss.bsky.social · 7mo ago

Is damaging hail getting worse? An ESSL-led study published in Nature Geoscience finds that very large hail is modelled to occur most frequently in South America, the United States, and South Africa, but Europe shows the strongest increase in very large hail frequency. doi.org/10.1038/s415...

A map of the world showing the modeled trend of large hail between 1950 and 2023.

Have you ever heard of the black-white mortality crossover? Before about 82, black men have higher age-specific probabilities of dying than white men. Between roughly 82–86, the gap closes. After 86, the pattern actually reverses: white men become more likely to die at each age than black men.

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"Nutrition is a central determinant of human health, yet the direct impacts of climate on dietary intake remain poorly understood ... [we] show that both extreme heat and cold trigger a shift toward energy-dense diets, adding a previously overlooked behavioral channel to the climate–health nexus."

Extreme Temperatures Promote High-Fat Diets

Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, an...

nber.org