Month: May 2026

The Revision of IPCC’s Climate Scenarios

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The UN’s international climate group has revised its set of possible climate change scenarios. They eliminated the most damaging scenario, because of progress in sustainable technologies and because details of the scenario itself seemed unlikely to occur. Trump and other climate deniers have seized upon this change to claim it shows all discussion of climate change is bogus. The following piece was done as a comment to an article in the NY Times.

It seems to me one of the problems with this discussion of scenarios is that people want the scenarios to tell them something different than what the scenarios are trying to do. The scenarios are attempts to model different levels of response to the problem of climate change. There is no default case where we do nothing. For that case the only limit to the temperature is the end year in the study—the temperature would just keep increasing.

The main thing that has happened since the original scenarios is that the world has taken some measures that help: costs of wind and solar solutions have come way down to the point that those make up the majority of new electricity generation worldwide. Electric cars have become cheaper, better, and more prevalent. So it’s not surprising that the current view is somewhat more optimistic.

Where that actually leaves us can never be completely clear. I’m willing to bet the models never considered that the most powerful country in the world would be run by someone trying to sabotage the whole effort. Or that data centers would suddenly demand more power than cities. Or that the Iran war would show everyone the risks of imported oil. There will always be reassessments.

This new set of scenarios should make us appreciate the work that has been done. We can make progress against climate change. But there is much that needs to happen and very strong forces against it. This will never be easy, but it needs to be done.

The Single Worst Thing We’re Doing

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With so much chaos lately it’s hard to keep track let alone prioritize the problems.  But in terms of long-term consequences there is a single worst thing we are doing.  We’re eliminating professional competence in government.

That is of course a joint project of the Supreme Court and the Trump administration.  The Court has decided that all federal employees serve at the uncontrolled whim of the President, and Trump has fired anyone he considers inadequately loyal.  There is no remaining notion of a professional career in government.  You are a political appointee, hired only to prove the President is right.

As we’ve noted here before—government is needed to support both the development of the economy and the well-being of the population.  Business by itself will do neither.  Adam Smith himself was explicit: “The government of an exclusive company of merchants is, perhaps, the worst of all governments for any country whatever.”  The job of government isn’t simple; it requires considerable technical knowledge, foresight, and understanding of how to get things done.  That’s how we produced the decades of dominance and prosperity after the Second World War.  Our success didn’t just happen.  There were people who made it happen.

That lasted until those running things got too greedy, while China followed our example with success. They figured out the coming importance of “rare earths” while we didn’t.  We’ve now reached the stage where Trump and his oligarchs have decided they don’t want to pay for anyone else:  they know all there is to know, and  they certainly don’t want to be saddled with the needs of their inferiors. So they don’t need the kind of people who enable government to do its job—because they don’t want that job to get done. They’re all-in for taking what’s there to get.

We’ve eliminated professional competence in government–the definition of decadent rot.

A Meeting in China

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Let’s talk about the basics of the Trump-Xi meeting.

What does Trump think about the situation?

He’s one of the smartest people who has ever lived and can only be compared to historical predecessors such as Julius Caesar or Alexander the Great.  His perfect intuition means that he has never made a mistake.  He is happy to be meeting with one of his only two peers on the planet—Xi and Putin.  And he has brought a bunch of his underlings (i.e. executives) as symbols of his power.  So he is there to glory in shared power and to bring back something he can tout as an achievement.  Glory is the thing.

What does Xi think?

On both ideological and racial grounds he is meeting with a representative of an old elite that is well past its prime.  Furthermore it is an elite that used its power to despoil China–Xi remembers the Opium Wars and the West’s abiding confidence in racial superiority. As for Trump, he actually started a trade war when the Chinese (with superior planning) held all the cards–i.e. complete control of “rare earth” resources required even for the military.  The Iran war is another sign of undisciplined impulsiveness—wasting enormous resources to achieve more damage than benefit.  So the challenge is how to take advantage of the opportunity. Strategy is the thing.

We can be more specific about objectives.  Trump wants some kind of big splash.  That can mean many things, but Trump’s weak position limits options. He’s not going to get a solution to Iran or a permanent relief from rare earths. One prediction has been a major new commitment of Chinese investment in the US.  That’s what he demanded from Japan and the EU. It’s true those are allies—as opposed to China—but Trump’s strategy document is more positive toward his two bros than toward them. That of course fits with Trump’s much-repeated story of all the new foreign-financed factories in the US that will make everyone rich.  On the Chinese side there are two objectives: opening the US market (e.g. for cars) and weakening of US resolve on Taiwan.  Both are useful near-tern and consistent with Xi’s longer-term goal of world economic dominance.

The scary thing is that those US and Chinese objectives could match up!  A big Chinese investment satisfies both—but only one outcome is real.  “Foreign-financed factories will make everyone rich” was always a fairy tale based on the world of the 1950’s.  It’s a mismatch with the world of today and even more so with coming AI and robotics. But Chinese involvement in US markets and technology could be very real.  Competing with the Chinese industrial machine is a challenge at best, and that would give them inside access to US markets and new means to get at US intellectual property.

The Iran war showed that Trump was ready to spend hundreds of billions of dollars and deplete US military inventories, so that he could imagine himself Napoleon.  (He’s given us every other possible explanation as well.) We may be on the verge of surrendering competition to China, so that he can imagine filling the country with 1950’s factories.

We’re so used to normalizing Trump, that we’ve become numb to consequences. This isn’t playacting; it can be real.