Pascal Polonik
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pascalpolonik.bsky.social
Pascal Polonik
@pascalpolonik.bsky.social
Postdoc at Stanford University’s Doerr School of Sustainability. Human-evironment interactions, climate, air quality, environmental equity, biking/transportation. Opinions my own.
Pinned
New paper! We show that you can use existing climate model experiments to separate aerosol-induced temperature changes from OECD and non-OECD emissions. We find distinct patterns for each, with differences in seasonality. We then show the implications for future temperature change
shorturl.at/63WA1
Emulation of the Climate Response to Greenhouse Gas and Aerosol Emissions From High‐ and Low‐Income Nations
We emulate the temperature response from greenhouse gases, OECD aerosol emissions, and non-OECD aerosol emissions We identify distinct cooling patterns from aerosols from the two regions, with no...
agupubs.onlinelibrary.wiley.com
New paper! We show that you can use existing climate model experiments to separate aerosol-induced temperature changes from OECD and non-OECD emissions. We find distinct patterns for each, with differences in seasonality. We then show the implications for future temperature change
shorturl.at/63WA1
Emulation of the Climate Response to Greenhouse Gas and Aerosol Emissions From High‐ and Low‐Income Nations
We emulate the temperature response from greenhouse gases, OECD aerosol emissions, and non-OECD aerosol emissions We identify distinct cooling patterns from aerosols from the two regions, with no...
agupubs.onlinelibrary.wiley.com
November 10, 2025 at 6:33 PM
Reposted by Pascal Polonik
There are more reporting surface weather stations in the country of Germany than across all of Africa, leaving many African communities without accurate forecasts. eos.org/features/bui...
Building Better Weather Networks - Eos
A lack of weather data often leaves African communities vulnerable. Convergent efforts to improve observational networks throughout the continent are slowly filling the gaps.
eos.org
October 27, 2025 at 1:12 PM
Reposted by Pascal Polonik
The National Institutes of Health will no longer be funding work on the health effects of climate change, according to internal records reviewed by ProPublica.

www.propublica.org/article/nih-...
NIH Ends Future Funding to Study the Health Effects of Climate Change
It’s unclear whether the guidance will impact active grants, but it appears to halt opportunities for future studies. One climate health expert said the directive would have a “devastating” impact on ...
www.propublica.org
March 24, 2025 at 8:50 PM
Reposted by Pascal Polonik
There are days in life that shake you.

I’m shattered 💔 to share that I just found out that the US Government terminated my 2024 NIH Director’s Early Independence Award (~$2 million), threatening my long-promised assistant professor job at Columbia University
& academic career... 1/🧵
March 18, 2025 at 11:27 PM
Reposted by Pascal Polonik
The FBI is moving to criminalize community climate workgroups like Habitat for Humanity for receiving grants from the EPA under the Biden administration, claiming they engaged in a conspiracy to defraud the United States by writing successful funding proposals.
Trump’s FBI Moves to Criminally Charge Major Climate Groups
The Trump administration is targeting climate organizations that received a Biden-era grant.
newrepublic.com
March 13, 2025 at 1:30 AM
We have a new paper out today about the statistical estimation of climate impacts and how that process intersects with the physical climate! We start from surface measurements and move all the way to the estimation of adaptation to new climates.
More detail below!
link.springer.com/article/10.1...
Estimating the impacts of climate change: reconciling disconnects between physical climate and statistical models - Climatic Change
Climate impacts studies often rely on empirical statistical methods to isolate the effects of changing environmental factors on human outcomes of interest. However, this research may not always accoun...
link.springer.com
February 12, 2025 at 8:41 PM
I’m pleased to see that this trend originated in the same place I went birding this morning (in Davis), but here’s a big bright authoritative sign with a little drab defiant bird
December 28, 2024 at 7:19 AM
Reposted by Pascal Polonik
100k people tried to snag just 1,500 electric bicycle incentive vouchers in California. They were gone in a minute.

People clearly want alternatives to cars. Let's give them more of these incentives everywhere.

Read in @planetizen.bsky.social | www.planetizen.com/news/2024/12...
December 27, 2024 at 7:35 PM
Reposted by Pascal Polonik
Today I had the very excellent experience of providing testimony to the Illinois Pollution Control Board (IPCB). The Board is considering the adoption of 3 pollution mitigation policies, each of which focuses on EV adoption as a means of reducing air pollutants and their hazardous health effects. 🧵
December 4, 2024 at 2:46 AM
Reposted by Pascal Polonik
Yes, I realize that my usual temperature anomaly scale is less than ideal for visualization purposes in this image here. But that's also because the #Arctic was absurdly warm compared to the 1981-2010 climatological average in October 2024.

Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
November 26, 2024 at 12:47 AM
Reposted by Pascal Polonik
Started this starter pack with energy justice & climate justice folks. Let me know who I should add to it. go.bsky.app/HXiuKJ5
(P.S. yes this is my way of finding my friends that migrated to bluer skies)

@costasamaras.com @menrywy.bsky.social @leahstokes.bsky.social @sidersadapts.bsky.social
November 22, 2024 at 4:04 AM
This is from February of this year. And from what I’ve read it’s gotten worse since then. We’re in the purple. Sources below.
November 22, 2024 at 1:21 AM
Tough day teaching about election implications for climate action. But the glass-half-full interpretation is that a lot of mitigation actually happens at the local and state levels. In San Diego, city policy alone makes up over half of planned mitigation, not to mention state.
November 13, 2024 at 2:16 AM
SpaceX launch as seen from Scripps 🚀
April 2, 2024 at 3:32 AM
This has been my experience with other things like the IRA. The assumption is still that the US is doing nothing - the news has not reached younger people at all. I even surprise them by saying US emissions are going down - the assumption is we’re still soaring up
today in class I asked people to raise their hands if they had heard about Biden pausing LNG permits and no one had. so not sure if those "young climate voters" are really going to be moved by this... teaching is usually a good reality check
January 31, 2024 at 3:33 PM
Reposted by Pascal Polonik
Open access in Nature today, work led by @bbastien.bsky.social quantifies the market and non-market welfare impacts of climate change effects on terrestrial vegetation www.nature.com/articles/s41...
December 18, 2023 at 10:18 PM
At #AGU23 this week. Come check out my talk on aerosols in climate policy on Mon at 10:40am or my poster on the role of physical science in statistical climate impact models on Thurs afternoon. Also free to reach out if you want to chat!
December 11, 2023 at 3:02 AM