Some might even call it weird!
Posts by Jonathan Koomey
I'm tolerating my cringe at watching myself on video to ask you to donate to WLP today! WLP made history this week, and the future of reproductive rights depends on people supporting their work! Even if you just have a few dollars, it is all appreciated! crm.bloomerang.co/HostedDonati...
www.youtube.com/shorts/0zBki...
"It would be really bad if they don't work out this Hormuz thing, so they'll figure it out some way" is still the prevailing attitude.
Can see it in markets, media, politicians, public.
Bad can't happen, people in charge know what they're doing, it's all content anyway.
I find it... unsettling.
Current policies = 2.6–3.4°C by 2100
NDCs = 2.3–2.8 °C
Net-zero pledges = 1.8–2.1°C
Expanding + accelerating Net-Zero = 1.4–1.7°C, but 1.5°C (no overshoot) now unlikely
Mitigation driven by: ↓coal, ↑renewables (up to ~80% by 2050), electrification, and efficiency
www.nature.com/articles/s41...
"""The core issue is not how old a child is, but how social media works,"" I said more or less so at the European Data Summit last week in Berlin :-)
I am very sorry to this man’s family but we must have term limits. We can’t go on hoping we don’t lose our rights because octogenarians die or become senile. That has been the story of the last ten years.
SCOOP: Two weeks ago, the head of the CDC delayed publication of a report showing covid vaccine cut likelihood of ER visits and hospitalizations by half. Now that report is no longer allowed to be published in CDC’s flagship scientific journal. My latest. 1/2
www.washingtonpost.com/health/2026/...
RFK Jr: "President Trump has a different way of calculating percentages. If you have a $600 drug and you reduce it to $10, that's a 600% reduction."
We explore these issues here: Koomey, J, and K Freund. 2024. Digital twins for digital infrastructure: The key to optimizing data center operations. Koomey Analytics and Cambrian AI Research. Sept. www.mediafire.com/file_premium...
One more subtlety: The rated IT power of the data center in MW assumes that the IT installed exactly matches the design assumptions. This is almost never true in practice so most data centers have an actual maximum IT load that is lower than the rated power.
On balance, though, the permitted emissions are very likely to be higher than actual emissions by a lot, even for power plants behind the meter supporting data center load most of the time.
On the other side, the MW rating is just the IT load, so you also need to add in the infrastructure electricity use (fans, cooling, pumps, power distribution losses).
Also, the MW given for data centers is a "nameplate" value that in most cases will never be reached (and for all will take some time to reach as they fill in the the IT equipment).
This is true, but there are complexities even given the factor you mention. For behind the meter installations they'll need to keep some turbines "in reserve", so those won't operate much.
Lot of people on the right crying about the Virginia redistricting vote.
We told you this would happen while you were celebrating the illegal off-cycle seat grab in Texas.
Stop playing stupid games if you don’t want to win stupid prizes.
@jgkoomey.bsky.social: Emissions from efficient grid-connected gas plants could be 40-50% of permitted numbers. But off-grid data center emissions could be much closer to what is modeled on the permit application, given that they don't fluctuate based on the ebbs and flows of grid demand.
also as @jgkoomey.bsky.social pointed out to me — there's still a lot of questions as to how actual vs permitted emissions will shake out when it comes to these big data center power plants, which operate differently than regular power plants!
NEW: I've been shocked by some of the numbers I've been seeing on behind-the-meter power plants for data centers, so I did a little math.
less than a dozen gas plants being built to power data centers for big tech companies could emit a maximum of nearly 130 million tons of CO2e each year (!)
This post appeared under this Techmeme headline:
The special experience of being Jeff Bezos
www.theatlantic.com/magazine/202...
h/t @jgkoomey.bsky.social
The great thing about @volts.wtf in this interview with @robinsonmeyer.bsky.social is that you go in expecting to hear about oil prices, federal shenanigans, etc, but you get the juxtaposition of pastoralists vs promethians which I haven’t thought about since my env philosophy class 20 years ago
Natural gas (methane) comes with natural benzene. Right into your home for no extra cost. Financial cost, that is.
"it is generally considered that the only absolutely safe concentration for benzene is zero."
American Petroleum Institute report (1948) published with Harvard.
They knew.
Hey Ryan, you may find our oil climate index (+ gas) of use. Ping me if you want to know more. All public domain/open source data, peer reviewed, created by a stellar team. And yes, we've got lots of detail on California oil production. jon@koomey.com ociplus.rmi.org
Me and @nealemahoney.bsky.social are in the LAT today arguing that CA oil industry is trying to use the current crisis to jam through its deregulatory wishlist. Instead of caving, the state should use this moment to be a leader in the "mid-transition."
www.latimes.com/opinion/stor...
Yet again I remind everyone (as Elizabeth does in her very next tweet) that "foreigners are corrupting our pure blood with weakness & disease" is Fascism 101. Not some variant, not some metaphorically similar thing, not some echo -- the thing itself.
impossible to overstate how poisonous this shit is. dudes on the street smiling and waving at your toddler are an indicator of a happy and functional community
It’s in keeping with the basic idea of the original Colorado River Compact, which was to manage the basin’s water through some negotiation and compromise, rather than strictly following the letter of the law. But the legal foundation of prior appropriation hamstrings negotiations at every turn. Farmers account for the overwhelming majority of Colorado water use—almost a third goes to cattle feed alone—and thanks to how the system was initially designed, their prices are absurdly subsidized. One recent study found that while municipal districts pay an average of $512.01 per acre-foot, agricultural irrigation districts paid an average of $30.32 per acre-foot. Fully a quarter of all Colorado water diversions, all to farmers, cost nothing at all. Such a subsidy is difficult to unwind.
TIL that while Colorado basin municipal water districts pay an average of $512 per acre-foot, irrigation districts pay an average of $30--and fully a quarter of all water diversions, all going to farms, pay nothing at all prospect.org/2026/04/17/w...
Wish I could be state Sen. Louise Lucas's strongest soldier by voting today for her 10-1 House map. Old neighbors and friends in Virginia, make sure to cast a ballot; you can do so even if you first need to register. ↘️
This is already demonstrably incorrect. And Wright isn't even dead yet.