North Korea Tests Another Missile

A devoted corps of North Korea watchers analyzes information coming out of North Korea on its missile and nuclear tests. I sometimes chime in, but missiles are not my thing. Much of the conversation takes place on Twitter, so you can see people figuring things out in real time.

First, a summary of this latest test. It seems to have been a successful test of an intermediate-range ballistic missile that North Korea is calling the Hwasong-12. This article summarizes the early information and analysis and links to many of the people who participate in those discussions. Read More

Tunnel Collapse at Hanford

A tunnel collapsed in the 200 Area of Washington State’s Hanford Reservation. The 200 Area is where fuel elements from Hanford’s reactors were processed to recover the plutonium that went into American nuclear weapons. I was not aware of an underground rail system there. The system is probably in the 200 area only because the reactors are much too far away to make an underground system possible. Read More

Estimating North Korea’s Nukes

David Albright offers an estimate of North Korea’s nuclear weapons that is not too far from mine. As he notes, any estimates have uncertainties upon uncertainties.

President Donald Trump’s bluster at North Korea has died down, but it could start up again at any time. Since North Korea’s nuclear weapons, or the threat of them, figure in the situation, we now need the best estimates possible.

Although Albright’s estimates are only slightly higher than mine, there are other considerations that I took into account implicitly. This post makes those considerations explicit. Read More

A Small Russian Overture

Donald Trump denounced the New START Treaty in his first phonecall with Vladimir Putin. Putin brought up the treaty, which is coming up for renewal in 2021, so talks should be starting soon. The treaty limits the numbers of nuclear weapons for Russia and the United States, preventing an arms race. But the treaty was negotiated under Barack Obama, so in Trump’s mind, it is a bad treaty. Read More

How I Learned To Love Climate Modeling

I’m annoyed by the New York Times hire of Bret Stephens, more annoyed by the defense that Times editors are mounting on Twitter. I’m annoyed that this has to be said again, but here we are, as Times editors tell us that any criticism is merely trying to silence a conservative voice. My objections have nothing to do with Stephens’s political views, except that it is clear that those views drive his views of climate change.

I was once a climate skeptic, with a great deal more basis than Stephens’s sense that life is uncertain and therefore we should eat dessert first. My skepticism arose BECAUSE I knew something about the climate models. Read More