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Jonathan Koomey

@jgkoomey.bsky.social

Climate solutions, information technology, critical thinking skills. Born at 318 ppm. https://www.koomey.com

4,184 Followers  |  9,516 Following  |  3,229 Posts  |  Joined: 21.11.2023
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Posts by Jonathan Koomey (@jgkoomey.bsky.social)

Even if oil prices get back to β€œnormal,” the disruption should be a wake-up call to move faster on alternative energy sources. If blocking one sea lane is all it takes to send gas prices soaring, then we need to move away from fossil fuels β€” fast.

09.03.2026 21:35 β€” πŸ‘ 594    πŸ” 131    πŸ’¬ 35    πŸ“Œ 10

I agree that it’s silly to claim that LLMs Can’t Do Anything (obviously they can do many things). I also think it’s silly to claim LLMs Can Do Everything (obviously they can’t).

regardless of how one feels about that, this is a very scary time to need a job and people are reacting accordingly

08.03.2026 10:08 β€” πŸ‘ 569    πŸ” 50    πŸ’¬ 10    πŸ“Œ 7
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Gullible, Cynical America The trouble with believing anything and nothing at the same time

The data economy has made us dumber in ways that also make us vulnerable to authoritarian takover. We are have become both cynical and gullible in the sense we think we are too jaded be fooled and as a result are tricked more easily www.theatlantic.com/ideas/2026/0...

09.03.2026 13:23 β€” πŸ‘ 2555    πŸ” 696    πŸ’¬ 75    πŸ“Œ 63

Third Way and the other billionaire backed centrist groups spend all their time and energy shitting on other Dems. Pundits, some hill staffers and a few DC orgs gobble up their messaging. But they're increasingly out of sync with Dem voters

09.03.2026 16:55 β€” πŸ‘ 51    πŸ” 18    πŸ’¬ 1    πŸ“Œ 1
Map snapshot depicting the predicted relative anomalousness of surface temperatures from the ECMWF ensemble over the Western U.S. in about a week from now. A a huge region of bright orange and red colors (depicting extremely high warm temperature anomalies) is centered right in the middle of the map, and covers essentially the entire region.

Map snapshot depicting the predicted relative anomalousness of surface temperatures from the ECMWF ensemble over the Western U.S. in about a week from now. A a huge region of bright orange and red colors (depicting extremely high warm temperature anomalies) is centered right in the middle of the map, and covers essentially the entire region.

Lots of buzz online about an upcoming major March heatwave for the American SW & California. And in this case, it does indeed appear increasingly likely than an extremely anomalous and even record-breaking heatwave may envelop much of the SW about a week from now.

09.03.2026 16:09 β€” πŸ‘ 639    πŸ” 281    πŸ’¬ 28    πŸ“Œ 133
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Winning the Oil Endgame - RMI This independent, peer-reviewed synthesis for American business and military leaders charts a roadmap for getting the United States completely, attractively, and profitably off oil. Our strategy integ...

We wrote this book in 2004. Maybe people will finally get the message this time. AB Lovins, EK Datta, OE Bustnes, JG Koomey & Nathan J. Glasgow. 2004. Winning the Oil Endgame: Innovation for Profits, Jobs, and Security. Old Snowmass, Colorado: Rocky Mountain Institute. www.rmi.org/insights/kno...

09.03.2026 16:27 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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When DOGE Unleashed ChatGPT on the Humanities

It was wrong and harmful - and quite possibly unlawful - to cut already approved NEH grants because Donald Trump hates "DEI."

But the way DOGE went about doing it was even dumber than you probably imagined.

They fed abstracts into ChatGPT and demanded an answer in fewer than 120 characters.

07.03.2026 20:34 β€” πŸ‘ 1153    πŸ” 428    πŸ’¬ 23    πŸ“Œ 71
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Every stage of plastic use β€” from production to disposal β€” harms human health In a recent study published by The Lancet Planetary Health, researchers examined the health costs of pollutants released by plastics across their full lifecycle and emphasized the need for internation...

Study: "Every stage of the plastic lifecycle contributes to human health threats including global warming, air pollution, cancer, and disease, with primary plastic production and plastic burning causing the greatest harm." 🌎πŸ§ͺ www.ehn.org/plastics-hum...

07.03.2026 15:42 β€” πŸ‘ 66    πŸ” 48    πŸ’¬ 0    πŸ“Œ 7
I’m Sure Glad I Bought an EV and Solar Panels - The American Prospect Trump’s idiotic war of aggression on Iran is spiking oil prices. Not my problem.

β€œjust speaking personally, I find dumping each load of hand-harvested electrons into my car deeply satisfying. It’s my own personal middle finger to all the right-wing oil barons and murderous petrostate dictators.” prospect.org/2026/03/06/e...

06.03.2026 20:54 β€” πŸ‘ 110    πŸ” 12    πŸ’¬ 4    πŸ“Œ 1
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Multiple Tankers Under Attack in Gulf Waters as US-Iran Conflict Escalates More tankers came under attack in Gulf waters on Thursday as the U.S.–Iran war escalated, and Iranian drones entered Azerbaijan,…

Multiple Tankers Under Attack in Gulf Waters as US-Iran Conflict Escalates

"Oil prices extended their rally on Thursday, with Brent climbing 3% and WTI rising 4%. They have both jumped 16% since the war started on Saturday..."

www.marinelink.com/news/multipl...

05.03.2026 18:43 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1

the news can be factual and accurate without being boring. and it should be.

04.03.2026 17:38 β€” πŸ‘ 87    πŸ” 6    πŸ’¬ 4    πŸ“Œ 0

people betting huge sums on other people's death is some straight-up black mirror shit

but the person dying and then the betting firm finding a fine-print loophole to not pay them anyway is what elevates this to high art

04.03.2026 17:30 β€” πŸ‘ 65    πŸ” 23    πŸ’¬ 4    πŸ“Œ 0

I doubt it's a coincidence that this happened the day after Rep. Gonzales was forced into a runoff in his primary.

The House GOP leadership must have realized he can't be saved from this scandal* and it's better to replace him now than have him get beaten in the fall.

04.03.2026 15:32 β€” πŸ‘ 539    πŸ” 112    πŸ’¬ 20    πŸ“Œ 3

Looks like a great reference. Many thanks!

04.03.2026 00:52 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Direct human health risks of increased atmospheric carbon dioxide - Nature Sustainability A review of studies on exposure to elevated CO2 concentrations in air suggests that health damages, such as inflammation or reductions in cognitive abilities, can occur at levels as low as 1,000 ppm.

Results are accumulating that exposure to CO2 has heatlh effects at lower levels than previously thought, but we're not going to drop dead at such levels. @joeallenjoe.bsky.social can better speak to this topic.

www.nature.com/articles/s41...

03.03.2026 18:49 β€” πŸ‘ 6    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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How Talks Between Anthropic and the Defense Dept. Fell Apart

NYT’s reporting on the DOD-Anthropic dispute sheds more light on how the Pentagon planned to use Claude for mass surveillance of Americans: by collecting and analyzing commercial bulk data.

So what is this commercial data? And how might Claude be used to collect and analyze it? 🧡 1/

03.03.2026 17:41 β€” πŸ‘ 47    πŸ” 32    πŸ’¬ 1    πŸ“Œ 3
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Iran war live: Iran warns will attack ships trying to pass Hormuz; drones hit US embassy in Riyadh Tehran’s ability to disrupt transit in the Hormuz Strait has rattled markets and choked global trade. Trump says the military campaign against Iran could last longer than four weeks, and the U.S. emba...

Israeli Prime Minister Benjamin Netanyahu said he expected the war against Iran was β€˜not going to take years,’ as the conflict widened with Israel attacking Iran-backed Hezbollah targets in Lebanon and Iran hitting Gulf states that host US bases. Follow our live coverage: reut.rs/4tW44U6

03.03.2026 06:12 β€” πŸ‘ 292    πŸ” 126    πŸ’¬ 55    πŸ“Œ 30
The Urban CO2 Dome of PHOENIX, Arizona Air temperatures, relative humidities, and atmospheric carbon dioxide concentrations were measured at a height of 2 m at approximate 1.6-km intervals prior to sunrise and in the middle of the afternoo...

Effects are likely to be worse for people with existing kidney disease. Also regional variations (see Phoenix CO2 dome).
ui.adsabs.harvard.edu/abs/1998PhGe...

02.03.2026 23:13 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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False solutions: How do fossil fuel companies reproduce their power through the energy transition In response to mounting political and social pressure to transform their business models, the fossil fuel industry is attempting to portray itself as …

This paper is excellent and shows how the fossil fuel industry deploys false solutions- CCS, hydrogen, and CDR- in order to further entrench and protect fossil fuel hygemony

02.03.2026 21:40 β€” πŸ‘ 72    πŸ” 40    πŸ’¬ 3    πŸ“Œ 4

I do recall seeing some stuff about in the midst of the pandemic.

I'm not going to try to figure it out. Perhaps, @linseymarr.bsky.social or @corsiaq.bsky.social have some insight on [CO2] health impacts on humans.

02.03.2026 22:10 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Submariners are typically younger and healthier than the gen pop though.

02.03.2026 22:54 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Here's another one showing cognitive effects: Satish, et al.. 2012. "Is CO2 an indoor pollutant? Direct effects of low-to-moderate CO2 concentrations on human decision-making performance." Environ Health Perspect. vol. 120, no. 12. Dec. pp. 1671-7.

02.03.2026 22:34 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Thanks for this. Other studies show different effects, but this looks like a credible one.

02.03.2026 22:34 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I've read that, but I've also read contradictory stories about submariners operating at a couple times that concentration.

02.03.2026 22:09 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0

These limits are for toxic effects, but Joe Romm cited studies indicating reduced cognition at 1000 ppm.

02.03.2026 22:07 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 3    πŸ“Œ 0

NIOSH REL (recommended exposure limits)
TWA 5000 ppm (9000 mg/m3) ST 30,000 ppm (54,000 mg/m3)

OSHA PEL (permissible exposure limits)
TWA 5000 ppm (9000 mg/m3)

TWA = time-weighted average concentration for up to a 10-hour workday during a 40-hour workweek

02.03.2026 21:32 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

This says nothing about the study you cited, though.

02.03.2026 21:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I remember Joe Romm citing toxic effects of CO2 above 1000 ppm but don't have the refs handy.

02.03.2026 21:26 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Peripherally related: Permentier, et al. 2017. "Carbon dioxide poisoning: a literature review of an often forgotten cause of intoxication in the emergency department." International Journal of Emergency Medicine. vol. 10, no. 1. 2017/04/04. pp. 14. [https://doi.org/10.1186/s12245-017-0142-y ]

02.03.2026 21:26 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

This is respectfully disingenuous beginning with which viewpoints they overwhelmingly choose to platform and hire on the opinion side.

In addition to that, there's a difference between sharing viewpoints you disagree with and sharing viewpoints that are based in lies.

02.03.2026 18:02 β€” πŸ‘ 631    πŸ” 117    πŸ’¬ 11    πŸ“Œ 0