Great response to Megan Kelly’s attempt to whitewash American history.

Here's a Fox News segment where contributor Marc Thiessen explains that we don't need to regulate greenhouse gases because "AI will help us find lots of ways to adapt to a warming climate so we can live with it."

Past energy use is a surprisingly good way to size heating and cooling systems. At tomorrow's CLASP Hybrid Heat Coordination Group meeting, I'll be discussing this method, pros and cons, and run an example. In addition to the nerdy updates I always do. Sign up link in next post.

Please, please get a colonoscopy. The prep kind of sucks, but it's the best sleep you'll ever have. And it could save your life.

The pressure here, IMO, is determining what is real, and what is simulation. The fact that LLMs can simulate work does not necessarily mean it's doing do. As I argue in More Than Words, AI-automated text production is not the same thing as writing. But... www.hachettebookgroup.com/titles/john-...

Everyone here has had to decide what they will and won’t do. Will you take someone in your house? Will you bring them groceries? Will you patrol streets with a whistle? Will you do some other kind of work, of which there are many. And how many of these types.

Goldman to Lyons: "You said in your opening statement that references to ICE as 'the Gestapo' or 'secret police' encourages threats against ICE agents. The problem is you have it backwards. People are simply making valid observations about your tactics, which are un-American and outright fascist."

one thing that will always be a mystery to me is the number of trump voters who basically thought they were electing george bush again reut.rs/3Mc4h4H

"the [economic] models assume the future will behave like the past, despite the burning of fossil fuels pushing the climate system into uncharted territory." "Investors should also speed up the move away from fossil fuels as a fiduciary duty to avoid large future losses, said Campanale."

I finally got what I wanted, a chart that shows how much of a given year a heat pump is suitable for a given climate. I find that I can get heat pumps to work pretty well in most houses down to 25° or so.

Something wild going on with DOE/EIA data for #RhodeIsland. Through last year DOE was reporting very high output for small-scale #solar in the state: 709 GWh in 2024, more than utility-scale! But now EIA dropped that by about half in Electric Power Monthly for 2025 & corrected downwards for 2024./1

I had an engagement with blogger, failed California gubernatorial candidate, and self-identified reporter Michael Shellenberger this past week, which started out being about this new paper being heralded by climate skeptics as disproving global sea-level acceleration. (LONG 🧵)

Great thread demonstrating the maxim that it can take a hundred pages to fact-check the lies a bullshitter like Shillenberger can spew out in a paragraph.

I'm worried that the broader public isn't really understanding the Epstein Files. The problem isn't that everyone in the files is a secret pedophile, it's that all the people are corresponding with him because they *don't care that he's a pedophile*. It's a story of elite impunity.

This is really what I want people to appreciate. I get that it feels good to be like "well that person's a pedophile too!" But in many cases they weren't. They were just people who didn't think it was a big deal. That's terrible in its own particular way.

@doctorvive.bsky.social @kevinjkircher.com @jgkoomey.bsky.social @amywestervelt.bsky.social In this book are the ingredients of collapse, which is not preordained, but understood. It is, largely, a single problem.

"MPR News has learned that the police chief in the small southern Minnesota city of St. Peter intervened Thursday afternoon to prevent federal immigration agents from arresting a local resident" who had been observing federal agents. www.mprnews.org/story/2026/0...

As a side note, it’s funny to see so many of these emails with thirsty academics repeatedly enact Marx’s bit in the 1844 Manuscripts about the power of money. “Oh Mr Epstein, your house in New York is enormous and, unrelatedly, your questions at dinner were so intelligent, so insightful, so deep.”

New NHTSA crash data, combined with Tesla’s new disclosure of robotaxi mileage, reveals Tesla’s autonomous vehicles are crashing at a rate much higher than human drivers, and that’s with a safety monitor in every car. Tesla has reported 9 crashes involving its robotaxi fleet in Austin, TX. /1

The arrests of journalists Don Lemon and Georgia Fort are a test for every MSM member with a platform. If you are not voicing your outrage at this blatant violation of the First Amendment, you are utterly discredited as a journalist.

Even if you don't like Zohran Mamdani's issue positions, the fact that he is out there proposing brand-new policies and really mixing it up with the public is what all Democratic politicians should be doing. You can't protect democracy if you don't listen to the people .

🧵 The people of Minnesota, especially Renee Good and Alex Pretti, have shown that American democracy still has a lot of strength left within it. But the battle is far from over. The US is in a liminal moment, a time of transition. We can do this, but there's much to know and to do.

Big news that I'm delighted to no longer be keeping a secret: Next week I join @wired.com as a senior writer! As everyone knows, this is a top-tier publication and indispensable record of digital life today. I'll be covering internet culture in all forms, as I have for almost 15 years now.

hm reposting to bookmark - datacenter locations

Hey if you don't know I'm a temporary host for the Scientific American podcast Science Quickly. We are doing an upcoming episode on kissing and we want your kissing stories! (next skeet tells you how to submit)

@jgkoomey.bsky.social Hi Jon, been a bit, but a discussion with a colleague reminded me of your work and a question you might be able to answer: are there any good *open access* data center datasets available currently? Global or regional? Especially with energy demand/consumption?

Greensky is a custom feed I made for climate content: a curated list of people, and then a filter on top that shows climate, energy, activism etc topics from that list of ppl I let it stagnate a bit over the past few months but now there's a surge.....should I update / improve it?

People will get sicker. More people will have heart attacks and lung disease and other health challenges because of pollution. People’s lives will get worse, and shorter. People you know. Maybe me. Maybe you.

Peltola has won statewide in Alaska and lost her race in an R +1 national environment by a literal handful of votes lol This is incredibly stupid.

Such a conundrum. I'm experimenting with daily (!) quizzes this semester. So far no one has said they prefer the alternative, which is a midterm and final. I'm alternating between content and reading quizzes, but I also like @mlpacheco.bsky.social's idea of having quizzes about homework assignments.

This is contrary to a large body of environmental case law as well as best practices for performing economic analyses of regulatory costs and benefits. It is, however, consistent with this administration's Orwellian approach to governance. www.nytimes.com/2026/01/12/c...

one payoff of being a bureaucracy understander is functionally achieving goal of ‘abolish ICE’ without the slogan and its political overhead. republicans know how to do this and have done it often

Yes. Maybe light pollution will finally start getting attention. darksky.org

Scoop: The EPA will no longer estimate the lives saved by reducing air pollution when writing clean-air regulations, according to documents reviewed by @nytimes.com. Gift link: www.nytimes.com/2026/01/12/c...

Hey, if we don’t count deaths they don’t actually happen, right?

"the Trump administration...said the E.P.A. would no longer take health effects into account in the cost-benefit analyses necessary for clean-air regulations...Instead, the agency would estimate only the costs to businesses of complying with the rules." www.nytimes.com/2026/01/12/c...

Original sane washed edition, left, transcript which reveals it is even more a confession of psychological illness than NYT tried to sane wash, right. www.nytimes.com/2026/01/11/u...

Sad trombone for all the folks who fought this interregional transmission line that will deliver clean power to New England through all the (sometimes dubious) means available to them. Hey, at least you managed to delay it by a year or so and make it a scooch more expensive.

🧵A political/media guide to the "truth" about net-zero 1) Add up costs to install & run a net-zero energy system 2) Pretend fossil-fuelled alternatives wld be free 3) Do say "eco zealots are bankrupting us" 4) Don't say "free cars if we scrap net-zero" cos it sounds ridiculous 5) That's it! 1/10

Simon's walk through is useful to get a sense for the kinds of nonsense media perpetuate on net zero, but there's a broader lesson: If we count all societal costs, as we should, net zero will SAVE SOCIETY MONEY! A zero emissions world will be a better world, full stop.

I’m not sure there are any responsible GOP senators anymore but like if there was ever a blinking red line this is one of them.

Here is a quick review of falling (more safely) in judo (and aikido). The forward fall is the most counter-intuitive IME but also my aunt last-year compound fractured her wrist falling forward & extending her arm to try to break her fall so… www.judo-ch.jp/english/know... Practice is required.

i think powell's response here is a demonstration of the folly of the idea that democratic accountability requires presidential control. what if the president is not acting in the public interest? you want independent agencies to be able to push back and pursue their *congressional mandate*

Every week is overwhelming evidence of what we saw with our own eyes, but which our credulous media was afraid to print: the Nazi salute was a Nazi salute

Who is the most trusted source of information on climate change? Great news - for your family and friends, it's pretty much YOU! www.sciencedirect.com/science/arti...

but this is a point I think is so important and am glad is getting more attention: the AI boom is dependent on being completely exempt from the trade war that the rest of us have to deal with www.apricitas.io/p/the-tariff...

"He’s always been a narcissist. But I am genuinely worried that something has changed for the worse in recent weeks, if not months ... They have really, truly convinced themselves that their power is unlimited, that there’s nothing anyone can do to stop them." trib.al/3tC1Z9v

A big win from the end of 2025 — solar is easier to build in NJ! RPA found that NJ historically had the third-slowest permitting for solar in the US. Smart permitting promises to make this easier!

New this week: I wrote about the dozen cities I found that had fewer murders in 2025 than in any of the last 50 years. A wide range of cities with incredible results. jasher.substack.com/p/the-cities...