Ryan Ward @ryanward.bsky.social · 09/09/2026unfortunately stealing the solution to a fluid mechanics problem from user data is probably one of the more benign and banal data privacy issues we’ll see 021
Ryan Ward @ryanward.bsky.social · 25/08/2026I feel like as I lean on chat as a learning tool it’s good refresher on stuff I know/knew but if im learning new stuff it doesn’t cement as easily. maybe the lack of friction to information/instant gratification to questions? 000
Ryan Ward @ryanward.bsky.social · 21/08/2026There’s so much to unpack that I can’t even fathom where to start. The millennial urge to post meets the enshitification of society meets the sloth of human nature. I’d say textbooks will be written on the subject but will people even be writing ? 110
Ryan Ward @ryanward.bsky.social · 19/08/2026I suspect this generalizes to academic pursuit broadly arxiv.org/abs/2608.16753arxiv.orgMathematics in the age of AIAn essay, based on a public lecture delivered at the 2026 International Congress of Mathematicians, on how the mathematical community might respond to the arrival of artificial intelligence tools that... 000
Ryan Ward @ryanward.bsky.social · 23/07/2026Expressed fomo at missing the nyc wildfires and was bequeathed Irish wildfires 100
Ryan Ward @ryanward.bsky.social · 12/05/2026Unfortunately you don’t get this kind of discourse on blue sky 030
Ryan Ward @ryanward.bsky.social · 09/05/2026If an AI weather model missed that a hurricane would strengthen to a some hypothetical unseen Cat 6 instead of Cat 5 but still got the timing broadly right (cheaper and faster), would it really matter ? www.bloomberg.com/opinion/arti...bloomberg.comAI Isn't Built for the Black Swan Era of Bad WeatherUsing artificial intelligence to forecast the weather is getting so good – and so cheap - that meteorological services are starting to retire the expensive physics-based systems they have relied on. T... 010
Reposted by Ryan WardFaye McNeill @vfmcneill.bsky.social · 13/04/2026doi.org/10.1021/acse... Thorough retrospective and touching tribute by John's long time collaborator, Rick Flagan (H/T @ryanward.bsky.social)doi.orgJohn Seinfeld─The Atmospheric Engineer Who Cleared the AirJohn Seinfeld is one of the most important and influential atmospheric scientists and engineers of the last 60 years. As a young chemical engineering professor, who had just defended his thesis on the... 01510
Ryan Ward @ryanward.bsky.social · 14/01/2026It’s amazing that LinkedIn posts were like that before llm’s 010
Ryan Ward @ryanward.bsky.social · 19/11/2025Though not sure if this just means brick and mortar cults…. Like momma used to make (no shortage of metaverse cults) 000
Ryan Ward @ryanward.bsky.social · 19/11/2025And to think this doesn’t even get to AI stagnating our culture open.substack.com/pub/experime...open.substack.comThe Decline of DevianceWhere has all the weirdness gone? 110
Ryan Ward @ryanward.bsky.social · 19/11/2025open.substack.com/pub/newscien...open.substack.comResearch Papers Used to Have Style. What Happened?A Brief History of Scientific Writing 000
Reposted by Ryan WardJP @jpbrammer.bsky.social · 14/11/2025I wrote about Rosalía's "Lux," martyrdom, and our collective gastrointestinal health johnpaulbrammer.substack.com/p/eat-mejohnpaulbrammer.substack.comEat MeOn Rosalía's "Lux" and our collective gut health 1034160
Ryan Ward @ryanward.bsky.social · 27/10/2025Trudeau/Katy Perry, Louvre heist… this is the type of shenanigans reporting that we don’t get anymore when the news cycle is all fascism and horrors of AI 010
Reposted by Ryan WardFaye McNeill @vfmcneill.bsky.social · 21/10/2025Our new article out today takes a hard look at some practical limitations on stratospheric aerosol injection and what they means for the riskiness of this approach. @mcneill-lab.org w/ @gwagner.com & @steingart.bsky.social @climate.columbia.edu @columbiaseas.bsky.social Here's the press release:eurekalert.orgHow hard is it to dim the Sun?Solar radiation management is gaining traction as a climate intervention—but new research warns that real-world constraints make it riskier and more uncertain than most models suggest. 2199
Reposted by Ryan WardPopehat @kenwhite.bsky.social · 02/10/2025Every few months now I re-read this "Who Goes Nazi?" piece from 1941 and am blown away by how it captures the people we are dealing with 80 years later. harpers.org/archive/1941...harpers.orgWho Goes Nazi?, by Dorothy Thompson 26391123508
Reposted by Ryan WardPaul Wennberg @paulowennberg.bsky.social · 19/09/2025Celebrating Richard Flagan's 50 years of service to @caltech.edu! Rick arrived in 1975 intending to study combustion chemistry and ended up playing an enormously influential role in developing new instrumentation to quantify atmospheric aerosol and helping to mitigate air pollution in LA and beyond. 1348
Reposted by Ryan Ward𝐔𝐧𝐛𝐥𝐨𝐜𝐤𝐚𝐛𝐥𝐞 𝐆𝐨𝐮𝐫𝐦𝐚𝐧𝐝 𝐂𝐫𝐚𝐛 @johnxuandou.bsky.social · 13/08/2025This is one of the most beautiful things I have witnessed, the craft here is impeccable. 461222338468
Ryan Ward @ryanward.bsky.social · 29/07/2025I like the tracked changes holdover error getting us started on page 2 030
Ryan Ward @ryanward.bsky.social · 27/05/2025vividly remember playing apples to apples in elementary school and the favorite card was always the supermodels card (caption “long legs = big bucks”) not sure if/what it says about that era 110
Reposted by Ryan WardPaul Wennberg @paulowennberg.bsky.social · 24/05/2025They should read our new study. In Los Angeles Purple Air sensors are likely more accurate than the expensive sensors. www.science.org/doi/10.1126/...science.orgPoorly quantified trends in ammonium nitrate remain critical to understand future urban aerosol control strategiesRegulatory monitors fail to measure ammonium nitrate aerosol, masking its importance as a top aerosol pollutant in Los Angeles. 56323
Ryan Ward @ryanward.bsky.social · 23/05/2025There’s other interesting science in here too, I think (eg how changes in nighttime o3 buffer NOx reductions vis-a-vis ammonium nitrate formation). Hopefully a little something for everyone 🙂 000
Ryan Ward @ryanward.bsky.social · 23/05/2025Also surprising is how much effort has been made to match purple air to the FRM/FEM when it performed the best in high ammonium nitrate periods. Our mantra in the field is generally that purple air is over-reporting, but it makes me question many of the corrections we’ve made to that instrument 100
Ryan Ward @ryanward.bsky.social · 23/05/2025Susanne Hering (👸) and Glen Cass first pointed out (in 1999) that the FRM is biased for semi volatile species like ammonium nitrate. It is surprising we haven’t adopted even nylon filters so that we can accurately report the PM. It is clear that a great control strategy follows speciated data 100
Ryan Ward @ryanward.bsky.social · 23/05/2025This is a super optimistic finding. Yes, ammonium nitrate is underreported. However, that it is ammonium nitrate and shows a dependence on NOx bequeaths a plan. electrification of the vehicle fleet, while good for climate, can still be impactful in 2025 for air quality 100
Ryan Ward @ryanward.bsky.social · 23/05/2025I think the most important finding here is that since ammonium nitrate is still pervasive in PM2.5, reducing NOx (eg mobile sources, diesel, off road) is still critical. If the PM was only organic, the control strategy is less clear (especially since we are still fighting over SOA sources) 100
Ryan Ward @ryanward.bsky.social · 23/05/2025This work was really fun for us (I think) and also shows a lot of our biases. We’ve been so focused on organic aerosol the past decade (at least in LA), that when we saw that the nitrate component was more abundant than the organic, we had to unearth the ancient texts on ammonium nitrate 172
Reposted by Ryan WardAnn Marie Carlton @amgcarlton.bsky.social · 21/05/2025Coming across your paper, @ryanward.bsky.social is an excellent twist of fate.... I ❤️ your work! Congratulations.science.orgPoorly quantified trends in ammonium nitrate remain critical to understand future urban aerosol control strategiesRegulatory monitors fail to measure ammonium nitrate aerosol, masking its importance as a top aerosol pollutant in Los Angeles. 1134
Ryan Ward @ryanward.bsky.social · 21/05/2025Thank you🙂🙂🙂🙂🙂 had to fight to keep that phrase in lol 030
Ryan Ward @ryanward.bsky.social · 21/05/2025from across campus in the rain I can hear a chorus of boo’s at Columbia commencement 010
Ryan Ward @ryanward.bsky.social · 07/05/2025a lot of discourse about AI destroying student creativity and critical thinking paired with a perhaps ironic lack of creative solutions 010
Ryan Ward @ryanward.bsky.social · 13/03/2025Another statement was sent to the community and published here universitylife.columbia.edu/content/upda...universitylife.columbia.eduUpdates from the Rules Administrator | University Life 000
Ryan Ward @ryanward.bsky.social · 01/03/2025like there doesn’t need to be one for the y coordinate and yet it’s purposeful and intentionally has one issue underneath 120
Ryan Ward @ryanward.bsky.social · 20/02/2025funded by (NSF) and disseminated via (CDC) federal agencies. indispensable collaborations for US science 010
