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Stephen Young

@atomicwonk.bsky.social
2.3K followers 361 following 693 posts

Advocate for more sensible nuclear weapons policies, firm believer that we should not live in a world where hundreds of millions could be dead in an hour. Associate Director for Government Affairs, Global Security Program, Union of Concerned Scientists

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Stephen Young @atomicwonk.bsky.social · 14/01/2026
This may be my favorite sign off all time. It has a truth that cannot be denied.
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Stephen Young @atomicwonk.bsky.social · 11/12/2025
I do have a confession. It is possible that the general did not do the map in his article. That is because, in the article, he cites the COASTLINE of Israel versus the coastline of the US as the areas that need to be defended. WHICH IS JUST AS STUPID IF NOT MORE SO.
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Stephen Young @atomicwonk.bsky.social · 11/12/2025
A retired general argued that the fool's Golden Dome is feasible using an image stating the US system would defend an area 16 times larger than Iron Dome does for Israel. As the map shows, the US is in fact over 450 times larger. Expect more of this type of analysis from Golden Dome supporters.
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Stephen Young @atomicwonk.bsky.social · 30/10/2025
"Because of other countries testing programs" President Trump ordered the Pentagon "to start testing our Nuclear Weapons on an equal basis". Normally, testing nuclear weapons refers to explosive testing of a nuclear weapon, something the US has not done at full scale since 1992.
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Stephen Young @atomicwonk.bsky.social · 27/08/2025
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Stephen Young @atomicwonk.bsky.social · 25/06/2025
Finally, the key takeaways. They are extremely modest. In short, they conclude that "only the higher employment scenarios" are likely to inject significant material into the stratosphere enough to impact globally.
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Stephen Young @atomicwonk.bsky.social · 25/06/2025
Societal impact again talks about could "impact essential ecosystem services"
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Stephen Young @atomicwonk.bsky.social · 25/06/2025
Ditto for impacts of nuclear use on ecosystems - it "could significantly impact" ecosystems, but no specifics described yet.
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Stephen Young @atomicwonk.bsky.social · 25/06/2025
Study on physical impacts also led to a call for more study rather than specific findings on those impacts - at least so far in this presentation!
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Stephen Young @atomicwonk.bsky.social · 25/06/2025
It calls for more detailed understanding of the plume rises and aerosol impacts.
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Stephen Young @atomicwonk.bsky.social · 25/06/2025
It is widely known that the models the military uses to estimate casualties from nuclear use does NOT include consideration of fires started by nuclear use. The NAS concludes there WILL BE huge fires, but asks the government to do more study to estimate the results of those fires. It did not assess.
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Stephen Young @atomicwonk.bsky.social · 25/06/2025
These are the scenarios they looked at, from a massive exchange to smaller and smaller uses, down to a single explosion.
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Stephen Young @atomicwonk.bsky.social · 25/06/2025
That classified version was released previously. Today they are releasing the unclassified version, e.g, their key finds. Note they did NOT look at impact of fallout on humans or the environment! But here is what they did:
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Stephen Young @atomicwonk.bsky.social · 15/06/2025
My sign today for Hands Across Arlington. So much warmth and generosity and humor among the thousands out today, along with some righteous anger. #NoKings
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Stephen Young @atomicwonk.bsky.social · 22/04/2025
My irises in all their glory! #flowerpower
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Stephen Young @atomicwonk.bsky.social · 14/02/2025
From Reuters on the NNSA firings - apparently some people were reinstated. I would guess the people who worked on nuclear weapons were brought back & the people who work on nonproliferation were not, because they think it is better to threaten others with death than prevent death, but what do I know
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Stephen Young @atomicwonk.bsky.social · 14/02/2025
Here's a screen grab - 235 were fired, but the layoffs were "partially rescinded."
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Stephen Young @atomicwonk.bsky.social · 21/01/2025
Belated but true!
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Stephen Young @atomicwonk.bsky.social · 07/01/2025
On Jan. 6, 2021, with the Trump-inspired riot rampaging in the US Capitol, Vice President Pence escaped, followed as always by his nuclear football, which can be used to launch a nuclear strike should the president be out of contact/disabled. You can see the football here, with Pence just visible.
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Stephen Young @atomicwonk.bsky.social · 31/10/2024
Here is the full text of the nuclear top-line:
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Stephen Young @atomicwonk.bsky.social · 28/08/2024
“I have been asked whether in the years to come it will be possible to kill 40 million American people in the 20 largest American towns by the use of atomic bombs in a single night. I'm afraid that the answer to that question is yes.” - Robert Oppenheimer, speaking in 1950.
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Stephen Young @atomicwonk.bsky.social · 08/04/2024
My eclipse picture!
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Stephen Young @atomicwonk.bsky.social · 07/03/2024
This is wonderful news!
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Stephen Young @atomicwonk.bsky.social · 07/12/2023
The FY24 NDAA, just released, includes $52M for the B61-13, even though neither the House nor the Senate actually voted for it. It just got snuck into the bill by agreement of the conferees. The report with the money is here: docs.house.gov/billsthiswee...
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Stephen Young @atomicwonk.bsky.social · 27/11/2023
1e. But, while it doesn't mention the B61-13, it is notable that the timeline for the B61-12 has shortened, when you compare the FY23 SSMP schedule to the FY24 SSMP. The former ends at the end of FY25, the latter about 1/4 of a year earlier. See here, FY24 on the left, FY23 on the right.
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Stephen Young @atomicwonk.bsky.social · 12/11/2023
If that is the outcome, that the Biden administration can now make a plan to retire the B83, I guess this isn't the worst outcome. But if so, why not actually link the two? The DOD fact sheet just says the -13 is an "additional option" while they "work" to retire the B83.
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Stephen Young @atomicwonk.bsky.social · 12/11/2023
But, as noted above, @nukestrat.bsky.social & @mattkorda.bsky.social say it is really intended to allow retirement of the B61-13, to appease some faction somewhere that wants to hold on to massively destructive bombs that spew fallout across the globe.
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Stephen Young @atomicwonk.bsky.social · 10/11/2023
Things changed again once the Biden administration completed its Nuclear Posture Review, which called for retiring the B83 full stop without any linkage to the B61-12. However, there was no timeline or plan for the retirement. Full text here: s3.documentcloud.org/documents/23...
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Stephen Young @atomicwonk.bsky.social · 09/11/2023
It doesn't seem like the NNSA was very interested in keeping the B83 around. (Frankly, why would they be? It is a stupidly destructive warhead.) You can see that by looking at the oddly worded FY22 stockpile plan, which was produced under the Biden administration but still reflected the Trump NPR.
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Stephen Young @atomicwonk.bsky.social · 06/11/2023
Here is a piece a graphic way back from the FY2012 Stockpile Stewardship and Management Plan, the NNSA's helpful guide to their plan for the US nuclear arsenal, where they proposed to combine 7 bomb and cruise missiles warheads into 2, one of which would replace ALL the mods of the B61 AND the B83!
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Stephen Young @atomicwonk.bsky.social · 26/10/2023
A majority of Democrats and a few Republicans voted in favor of the Garamendi amendments, but with nearly unanimous Republican opposition and a large number of Democrats joining them, the amendments lost by a substantial margin. While not surprising, it is a disappointing outcome.
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