@chemdelphine.bsky.social
Environmental chemist. Professor at Colorado State University. Avid birder, very amateur photographer. I study the air we breathe (indoors and out) and how it impacts forests, climate, and health. Navigating life with the grace of a hippo on a balance beam
My latest for @science.org on the fraught future of NCAR as NSF's deadline nears. It can still go so many ways.
holy shit
A couple of the wildest graphs I recall making. It's been #warm... at Fort Collins the warmest climatological winter by nearly 4°F! #cowx 🌡️
Hej CATCH community!👋 Don't miss our next seminar by Jennifer Murphy @envchemjen.bsky.social (Uni Toronto) on March 18th, 15:00 UTC on "Sources and fate of atmospheric ammonia in the Arctic". Zoom link & calendar entry as usual on 👉 www.catchscience.org #CATCHscience @igac-ecr.bsky.social
The National Science Foundation is systematically being converted to the National AI and Quantum Research Foundation.
“I see it as the administration exerting political control over what has traditionally been NSF’s ability to fund the best science.”
Mine in this week’s @newyorker.com
The (Canadian) Gen X urge to wish I was I was in Sherbrooke now…
Only if they get shipped really, really quickly before some new law is misinterpreted, starting the whole process over again…
Also, soybean plants get stressed at O3 levels far below regulatory limits: exposures equivalent to a weekly 8 hours average of 40 ppb was sufficient to cause significant stress and clear reductions in crop productivity... More reasons to keep limiting O3 precursor emissions!
After torturing plants for several weeks, Luka found that the timing of O3 episodes matters more than cumulative dose, and that SIF can detect strain-phase stress early. Linking leaf-level experiments with regional-scale satellite data allowed us to think about mechanisms across spatial scales
Luka looked into how soybean plants respond to chronic O3 exposure using satellite solar induced fluorescence data over agricultural regions. With some ideas about repeated O3 exposure, he hopped into lab to explore leaf-level response with Mj @chemj.bsky.social and Rose Rossell
I am so excited about this paper! Luka Mamić was a visiting PhD student who studied remote sensing and data tools at Sapienza U in Rome - he was curious about air pollution interactions with crops and game to try some experimental science...
pubs.rsc.org/en/content/a...
Directorate for Geosciences
5/11
Indeed. One should only invest in trucking companies for ‘the long haul’ (sorry, couldn’t help myself)
We worked with @dbm.bsky.social and @mvermeuel.bsky.social using their PTR and our leaf chambers to see RH effects on monoterpenes, MBO, organic acids, and MVK+MACR. While not previously explored in the literature, we think RH effects may explain the variability in previous VOC emission studies
Really excited to share this paper from Mj Riches @chemj.bsky.social showing a humidity dependence on VOC emissions from ponderosa pines. At higher RH, emissions increase substantially - and we explore a few possible mechanisms in the paper.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Movie review from Guardian on Melania.
Yesterday it was cows using tools, today its penguins using satellite imagery.
Finally, some good news!
I am most definitely Forestic Science!
Oh my god she uploaded a slow motion video and it's amazing. He's just like me fr running as best he can and still going backwards over and over!
Among all the eye-popping numbers in the December summary linked below, it's also the first public appearance of this annual weather/climate visualization which I am quite fond of.
Larger version at climate.colostate.edu/co_cag/index... in case resolution here isn't so good. #cowx
everything about this is delightful (except the trail of destruction left behind): www.theguardian.com/world/2026/j...
I usually love seeing my friends quoted in the NYTimes, but the reasons for @marinavance.bsky.social being the focus of this story are so sad. The damage to US science is terrible.
The winds in Colorado/Wyoming are insane.
@mikezaccardi.bsky.social
well… your skin lipids undergo ozonolysis pretty much continuously with ambient ozone, creating an array of ketones and aldehydes that you then breathe.
(Us indoor chemists can ruin anything. You’re welcome.)
Not quite the same, but as a grad student, I once ordered a cylinder of nitrogen oxide - or as I wrote it on the purchase order, “NO cylinder“. Cue much confusion about how I would get my calibration standard without a cylinder….
I dare you to change the proofs of your next paper to New Yorker style…
It’s not Black Friday, it’s Bobcat Friday!! Greetings from a rare backyard visitor…
