Kai Chen

@kaichenyale.bsky.social

Associate Professor @YaleSPH @YaleDeptEHS. #Humboldtian Working on #ClimateChange, #AirPollution, and public health.

Something I wish more people understood: part of the point of shock-and-awe grant terminations at NIH and NSF has been to make scientists and university administrators afraid to speak out against the administration. And it's working. But, some of us were never going to get a grant from them anyway.

🔴 #THISISCLIMATECHANGE 🔥 Wildfires in Canada—sending smoke into the Northeast U.S.—were fueled by extreme heat, 20°F+ above average for early August. 🌡️ Meanwhile, 53M people in the U.S. Southwest & Mexico are facing extreme heat that’s nearly impossible without climate change. 🧵/6

Two side-by-side maps of Canada highlighting the influence of climate change on early August 2025 heat. The left map shows temperature departures from normal, with widespread areas in central and eastern Canada 12–14°C above average (shaded in dark red). The right map shows Climate Shift Index (CSI) values, indicating that the extreme heat in these regions is strongly linked to climate change (CSI values of 3 to 5 shown in red). Data from ECMWF ERA5 and NOAA GFS.

Map highlighting the Southwestern U.S. and northern Mexico with Climate Shift Index (CSI) values for August 4–8, 2025. Deep red areas over Arizona, New Mexico, Texas, and northern Mexico indicate CSI values of 5—the highest level—showing extreme heat that is almost entirely attributable to climate change. Lighter shades extend across surrounding regions. Source: Climate Central; analysis based on ECMWF ERA5 and NOAA GFS data.

One thing very few people know, even in the climate-health research space, is that - in addition to NIH / NSF / NASA / EPA blocking any new research on climate change and health - all the philanthropies have decided to take NGO-shaped roles rather than fund research, and so they aren't stepping in.

🎆NEW RESEARCH OUT In our new study published in One Earth, we uncovered hard truths about NO2-related health disparities in the U.S. Racial-ethnic minorities were generally more exposed and susceptible. The most affected race-ethnicity group was location-specific.

Disparities in NO2-related health burden prevalent across race-ethnicity and income groups in the United States

Increasing evidence has linked long-term NO2 exposures to adverse health, while current research on the NO2-related health burden rarely assesses exposure and susceptibility disparities jointly. In th...

cell.com

Beyond just physical damage and lives lost, floodwaters can cause increased health risks including: ➡️ Diarrhea ➡️ Mold ➡️ Chronic conditions ➡️ Stress and mental health disorders ➡️ Disruption to health care services Read more ⬇️ abcnews.go.com/Health/texas...

Texas floodwaters can increase health risks that could last for months: Experts

Floodwaters be contaminated with debris as well as high levels of bacteria, chemicals, waste and other pollutants, which can cause prolonged health risks, experts say.

abcnews.go.com

Since Lincoln was President, the National Academies has provided unbiased expert guidance to the government. I’ve had the privilege of serving on multiple committees, and the excellent staff takes their responsibility to help the country very seriously. What are we doing here?

Saskia Popescu@saskiapopescu.bsky.social · last yr.

Reeling from Trump contract cuts, the National Academies prepares for ‘a fairly radical downsizing’ www.statnews.com/2025/05/23/n... via @statnews.com

Who's calling the shots at NIH? Sworn testimonies and internal e-mails reveal for the first time the breadth of DOGE's control over the world's largest public biomedical funder. DOGE has provided lists of hundreds of grants to cut, and DOGE is now reviewing ALL NIH awards before they're released

NIH killed grants on orders from Elon Musk’s DOGE

Court documents and internal correspondence show the cost-cutting force has broad control over the world’s largest public biomedical funder.

nature.com