Come be my colleague!

Cows ✔️
Tornado ✔️
Iowa Landscape ✔️

Near Monmouth, Iowa this evening, April 14, 2026 with Juston Drake and Jeff Turney
#IAwx

Given all the discussion about the added cost of the Phase I spur to Merced (and what will be very expensive operations with few riders until Phase 2), does anyone understand why the train doesn't go from Gilroy to Merced first before turning south? Perhaps the right-of-way isn't available?

John Seinfeld─The Atmospheric Engineer Who Cleared the Air John 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...

doi.org/10.1021/acse...

Thorough retrospective and touching tribute by John's long time collaborator, Rick Flagan (H/T @ryanward.bsky.social)

Published today, the atmospheric chemistry community and ACS ES&T Air celebrate the important scientific contributions of John H. Seinfeld to atmospheric and aerosol science through this Special Issue dedicated to his legacy.

pubs.acs.org/toc/aeacd5/3/4

The Big Dig Podcast There is a cynicism that hangs over the topic of American infrastructure – whether it’s high-speed rail or off-shore wind – it feels like this country can’t build big things anymore. No one project em...

This is a very worth a listen for understanding why we have such difficulty delivering big projects in the US with lessons and echos the extend to @cahsra.bsky.social & true high speed rail on the northeast corridor. www.wgbh.org/podcasts/the...

Ditto for other tunnels in interim plan.

About that single track 13 mile tunnel between Palmdale and Burbank (+ safety evacuation tunnel). How large would it have to be to accommodate 110 or 125 mph double track? Would add ~3 min to trip compared to 220.

Reminds of the joke:

Reviewer: “Hey, Grok, critique this paper”

Grok: “It’s perfect! In fact, I wrote it this morning”.

Shortly after NASA's DC8 aircraft added satellite internet, the system was brought down by a Microsoft update (a bunch of scientist's computers all started to 'download' the push; I guess in this case, it was upload?).

And so little traffic south of San Juan Capistrano. Perhaps just head southeast to Oceanside and San Diego? bsky.app/profile/paul...

Atmospheric Chemistry Insights from the Global COVID-19 Pandemic: A Review The COVID-19 pandemic and resulting reductions in worldwide emissions, associated primarily with the transport sector, provided an unprecedented opportunity to explore the response of atmospheric chemistry and composition to large anthropogenic emissions perturbations. While air quality generally improved in early 2020, this was tempered by increased formation of secondary pollutants (e.g., O3 and secondary particulate matter, PM) in many regions studied. Declines in NOx emissions were largely responsible for the changes in O3, driving decreases in O3 concentrations in remote regions and increases in urban regions due to both decreases in O3 titration by NOx and also nonlinear changes in O3 production. Lower NOx levels also increased the levels of other oxidants (e.g., OH and O3), leading to a general increase in atmospheric oxidation in polluted urban regions. This enhanced oxidation promoted additional PM formation in some regions but was generally outweighed by decreases in primary PM and other secondary precursors (SO2 and VOCs). The COVID-19 pandemic gave rise to large local perturbations in air quality but only modest reductions in the global abundance of short-lived climate forcers (including O3 and PM).

Delighted to share that our review on what the COVID-19 lockdowns revealed about atmospheric chemistry was published today. What fun to write papers with wonderful colleague/friends! @jessekroll.bsky.social @envchemjen.bsky.social @chemdelphine.bsky.social

pubs.acs.org/doi/10.1021/...

I wrote something a few years ago to try and help... probably won't though!

www.realclimate.org/index.php/ar...

Annually averaged, same for the terrestrial biosphere.

‘We’re harvesting the sun’: A huge solar project grows in California A sweeping plan to build 21 gigawatts of solar plus batteries on 136,000 acres could be a lifeline for Central Valley farmers facing devastating water…

One of the few win wins. Maybe a model for future water allocation in the imperial valley www.canarymedia.com/articles/sol...

So excited to release this research we've been cooking on for the last 6 months! And huge shout out to @joeyshoyer-yall.bsky.social who led much of the technical analysis. Going to share a couple interesting findings below

But my main concern remains the interior West, especially Colorado River Basin. Here, there is a growing near-term risk (by later this spring and summer) of water supply and hydroelectric shortfalls, an early and intense fire season, and ecosystem degradation. This is a big deal.

Minnesota nice?

35F Chicago
95F St. Louis

Incredible. Jim Cantore @mikefirstalert

How does the bill account for ch4 pollution associated with petroleum imports? Growing evidence that the us liquid plays have a much higher loss of ch4 than the dry plays.

And, hopefully, clear the lagoon of rail infrastructure.

Batteries helping to keep the lights on during the California heatwave. Ramping from 0 to 12 GW delivered to the grid in just over one hour as the sun set.

The experimental work was funded by the United State National Science Foundation Environmental Chemistry Program.

We isolated the 1,8 H-shift using deuterated 1,2-diethoxyethane synthesized by @caltech.edu Chemistry Graduate student Samir P. Rezgui.

The odd physical chemistry leading to such efficient long-range H-shift chemistry is explained using computational chemistry performed at U. Copenhagen by Chemistry Grad Student Thomas Golin Almeida.

Congratulations to @Caltech ESE grad student Hongmin Yu whose work continues to reveal new surprises about peroxy radical autoxidation. Read her latest paper on a surprising fast H-shift in 1,2-diethoxyethane pubs.rsc.org/en/content/a...

Caltech Mourns the Passing of Planetary Scientist Yuk Yung Yuk Yung, professor of planetary science and JPL senior research scientist, passed away on March 16.

Yuk was a friend and great colleague. Deeply saddened by his death. www.caltech.edu/about/news/c...

YOU GUYS THEY BROKE THE PEOPLE MOVER BY BUILDING THEIR DAMN LAX-PRESSWAY???

The world’s most accurate pie chart

Happy Pi Day to all who celebrate

First law of thermodynamics