The concern about climate is well placed. Ripple et al. lay out a serious case that we may be closer to tipping cascades than models predict, with the Greenland Ice Sheet potentially vulnerable to tipping below 2°C warming, well before 2050.

But "invest an equal share of the resources currently being pumped into AI into climate" misidentifies the bottleneck. Marine cloud brightening could produce meaningful planetary cooling for roughly $5 billion per year at scale (NAS estimate). That's like what? 1% of what was spent on AI infrastructure last year?

The money exists. What doesn't exist is the political coordination to spend it.

The goddamn Alameda city council shut down a University of Washington MCB field test in 2024 because nobody told them it was happening on their property. Go look it up.

This's the actual bottleneck: governance, coordination, and political will, not capital.

When someone says "we should invest resources in X instead of Y," it's worth asking who "we" is and what mechanism they're proposing. AI investment is private capital chasing returns. You can't redirect it to climate by wishing. The implicit model, that Society has a budget and we're choosing wrong, assumes a resource allocation authority that doesn't exist. If you want to argue for creating one, that's a real position, but it should be stated openly rather than hidden inside "it would be sensible."

Also ... "AI won't solve it; it only makes it worse" is doing a ton of work! The energy consumption concern has real merit. But materials science, grid optimization, and climate modeling are direct climate contributions happening now. Google has saved energy in its datacenters ... using AI!

Blanket dismissal of an entire domain of capability isn't seriousness, it's pattern matching. (Ironically, there's a phrase for systems that produce plausible-sounding output by matching patterns without engaging with underlying structure. We're told to be worried about them.)

> not capital

Capital, and by relation the system that centers the idea of Capital as a method for moving around resources is at the very center of this.

Since Capital follows near-term incentive, if the "pollute the world" path has a greater near-term incentive, that's where the market will follow. If a single member of the system goes for long-term incentive(not cooking the earth), other near-term incentive chasers will eat their lunch and remove a player.

The system itself is a tight feedback loop searching for local maxima, and the local max is often the most destructive. With chasing the local maxima, also comes profit and capital that influence the political system.

> Marine cloud brightening could produce meaningful planetary cooling for roughly $5 billion per year at scale (NAS estimate).

Eh. Cloud brightening is a temporary hack, stops working as soon as you stop actively doing it, and isn't an alternative to switching away from fossil fuels. It's probably worth doing to push back the "ice melts and releases more carbon" thing but let's not confuse it with the extent of what needs to be done. You can't actually solve the problem for $5B/year.

> AI investment is private capital chasing returns.

Getting private capital to work for you is a good way to solve the problem. The real problem is politics.

The EV tax credits and the subsidies oil companies get were costing about the same amount of money, but we only got rid of one of them. Nuclear should cost less than fossil fuels, but we're told that fission is scary and Deepwater Horizon is nothing but spilled milk so the one with the much better environmental record has to be asymmetrically regulated into uncompetitiveness.

If we actually wanted to solve it we'd do the "carbon tax but 100% of the money gets sent back to the people as checks" thing, since then you're not screwing everyone because on average the check and the tax cancel out and corporations pay the tax too but only people get the check. Then everyone, but especially the heaviest users, would have the incentive to switch to alternative energy and more efficient vehicles etc., because everybody gets the same check but the people putting thousands of miles on non-hybrid panzers pay more in tax.

The "problem" is that it would actually work, which is highly objectionable to the oil industry and countries like Russia since it would cause their income to go away, hence politics.

Cooling the planet is neither a technical nor financial problem. The problem is that environmentalists want this to be a moral issue. They already decided on the solution. If the solution is not environmental communism with them in power, they will not have it.